Korean natural farming (KNF) takes advantage of indigenous microorganisms (IMO) (bacteria, fungi, nematodes and protozoa) to produce fertile soils that yield high output without the use of herbicides or pesticides. A result is improvement in soil health, improving loaminess, tilth and structure, and attracting large numbers of earthworms. KNF also enables odor-free hog and poultry farming without the need to dispose of effluent. This practice has spread to over 30 countries, and is used by individuals and commercial farms.
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History
Cho Han Kyu, or Cho Han-kyu, born in 1935 in Suwon, Gyeonggi Province, Korea, invented the Korean Natural Farming method. Cho completed high school education at the age of twenty-nine, while he worked on his family's farm. In 1965, he went to Japan as an agriculture research student for three years, and studied the natural farming method of three teachers: Miyozo Yamagishi (Japanese: ?? ???), Kinshi Shibata (?? ??) and Yasushi Oinoue (??? ?).
Upon his return to Korea, Cho combined his newly acquired knowledge with the Korean traditional farming method and fermentation methods, used in such Korean food such as Kimchi, and gradually invented what we now call Korean Natural Farming, putting it into practice by setting up a "Labor-Saving Abundant Harvesting Study Group" in 1966. As he gained more practice, he opened the Natural Farming Life School and Research Farm in Goesan County, North Chungcheong Province, in 1995.
Cho's international activities had started early by means of his contribution to the magazines and seminars aboroad. From 1992, he contributed 21-part articles in the "Modern Agriculture" magazine (Japanese: ????) published in Japan, and, in 1995, held a large-scale one-week seminar in Japan for the leaders of the all-powerful Central Association of the Agriculrural Cooperatives of Japan (?????????). Cho, together his son, Cho Yongsang, has since held seminars in various countries of Africa, Asia, the Americas, and Europe. As of 2014, they have trained over 18,000 people at the Janong Natural Farming Institute. Hoon Park brought KNF to Hawaii from South Korea where, as a missionary, he noticed KNF commercial piggeries with virtually no odor.
In 2008, he renamed his natural farming school and lab to "Cho Han-kyu Global Village Natural Farming Research Institute", or Janon Natural Farming Institute.
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Principles
The fundamental insight of KNF is to strengthen the biological functions of every aspect of plant growth to increase productivity and nutrition. Biology thereby reduces or eliminates the need for chemical interventions, whether to protect against predation and competition with other plants. For example, IMO metabolism produces complete proteins, while insects prefer incomplete proteins.
KNF avoids the use of waste products such as manure, which reduces the chance of transferring pathogens from the waste back into the food production chain, although in nitrogen-poor conditions adding manure can increase yield.
- Use the nutrients contained within the seeds
- Use indigenous microorganisms (IMO's)
- Maximize inborn potential with fewer inputs
- Avoid commercial fertilizers
- Avoid tilling
- No use of livestock waste
Effective microorganisms
KNF uses aerobic microorganisms. So-called effective microorganism techniques use predominantly anaerobic organisms.
Indigenous microorganisms
KNF makes use of IMOs to exploit the full potential of the ecosystem in which crops are grown. Potential benefits include increased rates of soil organic matter decomposition,increases in nutrient availability, improved plant yield, a reduced pathogenic microorganisms and an increase in plant defenses.
Beneficial microorganisms can significantly suppress fungal pathogen activity in crops of mildly susceptible Rhododendron cultivars, but highly susceptible cultivars may even be harmed. IMOs can reduce initial yield losses when transitioning from conventional to organic farming, by accelerating soil recovery. Soils depleted by the use of insecticides, fungicides and herbicides may have reduced soil microorganisms.
A healthy rhizosphere contains some 7 million microorganisms per hectare. Its rhizome contains diverse species and a relatively small concentration of microorganisms that damage plant life and a relatively large amount of plant secretions. Mold constitutes 70-75%, bacteria 20-25% and small animals the rest. The microorganisms contain approximately 70 kg of carbon and 11 kg of nitrogen, similar to the amount of nitrogen typically applied as fertilizer.
Soil nutrient cycling
Nutrients are taken up and deposited in a natural cycle unless disrupted by human intervention. As plants decay,"detrital" nitrogen and phosphorus is returned to the soil. Soil fungus and bacteria absorb these nutrients. The fungus and bacteria are consumed by fungal and bacterial-feeding namatodes, respectively. These nematodes are in turn consumed by omnivorous predatory nematodes. At each stage, some inorganic nitrogen and phosphorus is returned to the soil and is absorbed by the plant.
Bacteria
Four types of bacteria common in KNF include lactic acid bacteria, purple bacteria, Bacillus subtilis and yeast.
Mycorrhizae
Mycorrhizae are "fungus roots", a mutualistic association between a fungus (Myco) such as Aspergillus oryzae and plant roots (rhiza). This provides an interface between plants and soil. The fungus grows into the roots of crops and out into the soil, increasing the root system many thousand-fold. The fungus use their enzymes to convert soil nutrients into a form that crops can use and turn plant carbohydrates into soil amendments, "sequestering" carbon. Miles of mycorrhizae can be found in a single ounce of soil. Mycorrhizal soil inoculation increases soil carbon accumulation by depositing glomalin, which increases soil structure by binding organic matter to mineral particles. Glomalin gives soil its tilth (texture), buoyancy and water absorption ability. Biochar (charcoal) shelters mycorrhizae in myriad, tiny holes. Other mycorrhizaeal impacts include enhanced water uptake, reduced water needs (increased drought resistance), increased pathogen resistance and overall increased plant vigor.
Nematodes
Nematodes such as the reniform nematodeare (Rotylenchulus reniformis are often seen as harmful to agriculture and are a frequent target of pesticides. However, KNF asserts that 99% of nematodes are beneficial and even consume parasitic nematodes. Herbivorous, fungivorous, bacterivorous and omnivorous nematodes are important participants in nutrient cycling.
Tillage and other soil management practices affect nematode variety and populations. Conservation tillage benefits bacterivores and fungivores, but the structure index (SI) is not different between cover cropping and fallow fields. In one experiment simple no-till and strip-till failed to show increases in soil food web structure over two years, but did after six years. In the greenhouse, green manure increased omnivorous and predatory populations. Strip-till of sunn hemp cover crop followed by mulching soil surface periodically with sunn hemp residues enhanced SI within 2 cropping cycles.
Stages of plant development
KNF posits three primary stages of plant growth. Each stage requires a different balance of nutrients.
Vegetative growth
In the growth phase, the plant extends its roots, branches and foliage. The key nutrient in this stage is nitrogen. KNF prefers the use of a preparation of fish amino acids for this phase.
Flowering/reproduction
After the plant has reached sufficient size, the plant diverts its energy into making flowers to attract pollinators. The key nutrients in this stage are calcium and phosporous. KNF prefers the use of a preparation of fermented plant juice and other amendments for this phase.j
Fruiting
Once flowering is complete, the plant shifts its focus to bringing its fruit to full ripeness. Calcium enhances the size and sweetness of the plant and its fruit. KNF prefers the use of a preparation of pulverized egg shells in BRV for this phase.
Amendments
KNF uses a variety of amendments either to directly enhance plant growth or to enhance IMO proliferation. Note: all water first stands in an open container for several days to allow chlorine and any other volatiles to escape. Amendments are diluted 500-1000:1 for use.
Fermented items
KNF ferments a variety of materials for use in different contexts. Fermented products are produced in glass or ceramic (not metal or plastic) containers filled to 2/3-3/4 of their capacity and covered with porous paper or cloth. They employ brown sugar or jaggery (BS/J) as a fermentation agent. KNF does not use molasses, which contains excess moisture. Fermentation takes place in a dark, cool area and the results must be refrigerated or kept in a cool environment. The ideal temperature for fermentation is 23-25 °C (73-77 °F).
Fermented fruit juice
Fermented fruit juice (FFJ) uses the juice of locally-grown fruits with a relatively high sugar content, such as banana, papaya, mango, grape, melon or apple. FFJ from grapes and/or citrus should be used only on crops of grapes or citrus, respectively.
FFJ is diced or mashed fruit diluted .65:1 with water and 1:1 with BS/J, fermented for 4-8 days with periodic stirring.
Fermented plant juice
Fermented plant juice (FPJ) provides material that successful plants have produced for reincorporation into other plants. FPJ uses a single species of weed that flourishes in/around the fields that are undergoing cultivation or the plants to be cultivated there, harvested in the morning after a dry day. Purslane and comfrey have proven effective choices.
Layers of chopped plants alternate in 1-inch layers with BS/J. Pressure applied after each layer appropriately minimizes the amount of air.
After 7-10 days the mixture is fully liquified, although any remaining solids must be strained from the result.
FPJ are not helpful in the presence of high precipitation and/or high nitrogen conditions.
Fish amino acids
Fish amino acids (FAA) provide nitrogen to enhance early growth. Fish heads, guts, bones, etc. (preferably tuna or other blue-backed fish), crushed to separate flesh and bone are fermented with an equal amount of BS/J, possibly with added sliced green papaya.
Two to three teaspoons of IMO3 can dissolve any fat that develops on the surface. The top layer is a mixture of BS/J, IMO4, OHN, mineral A and rice straw.
Fermentation generally takes 7-10 days.
Kohol Amino Acid
Kohol Amino Acid (KAA) are made from the Kohol or golden apple snail, Pomacea canaliculataor is an introduced pest in the Philippines that proliferates in rice paddies and consumes young rice seedlings. Proper water management and transplanting the rice seedlings can mitigate its effects. Due to high its protein content (12%), Kohol may be used to manufacture a crop amendment referred to as Kohol Amino Acid (KAA), as an alternative to FAA in inland regions who do not have access to affordable fish materials. The Kohol has to be removed from the rice paddy anyway.
The kohol are fermented in the usual way by diluting with BS/J and water and adding IMO3, after boiling to kill the animals and separate them from their shells. Fermentation takes 7-10 days after which remaining solids are removed. During storage, additional BS/J is added to nourish the IMO.
Maltose
KNF maltose is made from sprouted barley (malt). The sprouts are then crushed and repeatedly soaked and separated from water. The malt then rises to the surface and is separated from the water and fermented.
Oriental Herbal Nutrients
Oriental herbal nutrients (OHN) are fermented from unwashed, dried angelica gigas, cinnamon bark and licorice root Glycyrrhiza glabra along with garlic and ginger.
Preparation and storage
While each herb is fermented separately, the results are combined for use, at the ratio of 2 parts angelica to 1 part of each of the other four.
The material can be fermented 5 times, removing 2/3 of the liquid after each cycle.
Ginger and garlic must be crushed (not ground) to aid fermentation. One herb is mixed with rice wine in equal parts and fermented for 1-2 days. BS/J equal to the amount of herb is added and the mix fermented for 5-7 days. Soju, vodka or another distilled (30~35%) alcohol equal to half of the mixture is added and the mix is fermented for 14 days.
Fermented mixed compost
Fermented mixed compost (FMC) is the result of applying KNF techniques to turn familiar compost materials into IMO-rich material with readily available nutrients.
In the late fall, bacterial activity subsides and fermenting microbes flourish, producing sugar and the best environment for FMC.
A shady, sheltered location with good drainage on an earthen floor provides the best environment. The minimum batch size is 500 kg, to optimize fermentation.
FMC includes at least one item each from the garden (fallen leaves or fruits), rice field (rice bran, straw), field (litter from oil cake or bean cake and ocean (seaweed, fish waste). The bulk of the material is high-protein animal matter with added plant matter. During fermentation, periodic turning is used to keep temperatures below 50 °C. Excess heat or moisture can produce an unpleasant/foul smell, signaling that the batch is ruined.
Wet compost mixes IMO4 with oil cake, fish waste, bone meal and bean oil cake and water to reach 60% moisture level (damp enough that the material maintains its shape when squeezed by hand). The mixture produces hormones such as auxin (from yeast and filamentous fungus) gibberellins from red fungus and cytokines from germs and yeast.
Dry compost ferments the same ingredients except water with commercial organic fertilizer for 7-14 days.
Rice bran/rapeseed
Another approach surrounds a dampened 10:1 rice bran/tree leaf mixture with a 30:4;2:1:1 mix of rapeseed oil residue/fish waster/bone meal/crab shell/bean cake oil mix, amended with KNF inputs and dampened to reach 50-60% moisture content. The mixture is covered with rice straw sprayed with WSP or biochar.
Lactic acid bacteria
Lactic acid bacteria (LAB) are anaerobic. In the absence of oxygen, they metabolize sugar into lactic acid. LAB improves soil ventilation, promoting rapid growth of fruit trees and leaf vegetables.
LAB ferments "rice wash water" (water that has been used to wash rice), producing a sour smell when complete, then diluted and fermented again with 3-10: 1 with raw (preferred) or pasteurized milk. and fermented a third time after removing flotsam and jetsam and diluting with BS/J 1:1.
Combining LAB with FPJ increases effectiveness.
Minerals
KNF provides techniques for converting essential minerals such as calcium, phosphorus and potassium into a form suitable for absorption by plants, by making them water-soluble. Many inorganic mineral sources cannot be processed by plants. The resulting solutions may contain allergens.
Water-soluble calcium
Calcium (Ca) is a common substance. However, the majority exists in the form of calcium carbonate (CaCO
3), which cannot be directly absorbed by plants.
Egg, clam or other shells can be turned into an excellent source of bio-available, water-soluble calcium (WSCA). Adequate Ca prevents overgrowth, firms fruit, prolongs durability, promotes absorption of phosphoric acid, helps crops to accumulate and utilitze nutrients, is the major component in forming cell membranes, enables smooth cell division and removes harmful substances by binding with organic acids.
Signs of Ca deficiency include underdeveloped roots, discolored, dry leaves, empty bean pods, poor ripening, soft flesh, insufficient fragrance. Leafy vegetables may contract Rhizoctonia, while root vegetables become spongy/hollow, lack sugar and fragrance and lack durability in storage. Rice and barley may display low starch, lack of luster and fragrance and low resistance.
WSCA is produced by grilling and crushing cleaned egg shells and steeping them in BRV until no bubbles are present. The bubbles indicate that the vinegar is reacting with organic matter to produce Co
2.
Water-soluble calcium phosphate
Calcium phosphate is soluble in acids, but insoluble in water. Bones including FAA leftovers can be converted into a source of bio-accessible calcium, phosphate and other minerals by boiling them to create a traditional bone broth. The (edible) broth is removed from the bone residue and the bones are burnt to charcoal at a low heat. The bones are diluted with 10x BRV and steeped until the bubbling stops (7-10 days).
Water-soluble phosphoric acid
Phosphoric acid makes up part of the cell nucleus and reproductive system. Phosphoric acid is involved in photo phosphorylation and electron transport in photosynthesis, anabolite transport and in protein synthesis.
Deficiency hinders cell division and reproduction. Symptoms first appear on the petiole and veins of older leaves. New leaves grow slowly and are dark in color. Flowering is reduced
KNF water-soluble phosphoric acid (WSPA), is made by burning phosphoric acid-rich sesame stems into charcoal. The charcoal is soaked in aerated water to dissolve the acid.
Water-soluble potassium
Although soils that have been treated with lime may have substantial potassium (K), it may be in an insoluble form. Potassium deficiency can also occur in sandy soil which has less humus.
K does not become part of plant structure, but acts to regulate water balances, nutrient and sugar movement and drives starch and protein synthesis and legume nitrogen fixation. Prior to fruiting, its principal function is to grow meristematic tissues. K promotes synthesis of carbon dioxide fixing enzymes, decreases the diffusive resistance of CO2 in the leaf and activates various enzyme reaction systems.
Potassium is highly mobile in plants. Leaf potassium content decreases rapidly during fruiting, because the fruit requires substantial K.
Symptoms of K deficiency include lower growth rates, smaller fruit and seed sizes, reduced root systems, disease and winterkill susceptibility and lower moisture and nitrogen absorption and content. Chlorosis starts from old leaves after K moves to other plant parts. Their edges become yellowish brown and appears as a spot in the middle of leaves in some plants.
Water-soluble potassium (WSK) is made from steeping bite-sized pieces of tobacco stems in water for 7 days and diluting the result 30:1 with water.
Seawater
Lower-salinity surface seawater and/or brackish water carries beneficial microbes. Fermenting this water (diluted 30:1 with fresh water and again 200:1 with rice-washed water), OHN and mugwort/dropwort diluted FPJ, uncovered, for a few days increases microbial populations.
Biochar
Biochar is a porous charcoal that has been designed to produce high surface area per unit volume and small amounts of residual resins. Biochar serves as a catalyst that enhances plant uptake of nutrients and water. Its surface area and porosity enable it to adsorb or retain nutrients and water and provide a microorganism habitat.
Bacterial mineral water
Bacteria Mineral Water (BMW) steeps granite, limestone, basalt, elvan and other basaltic rocks along with IMO4 to leach minerals from the rocks, recirculating the output with refreshed IMO4 to increase mineral concentrations.
Silicon can be pulled out of basalt#Life on basaltic rocksic rock with oxygenated water. O2 reacts with the Si out of the rock to form SiO
2 (glass). The rock becomes a reddish dirt. The significant amounts of reduced iron, Fe(II), and manganese, Mn(II), present in basaltic rocks provide potential energy sources for bacteria.
BMW are abundant minerals and trace elements. It promotes plant growth, improves storability and deodorizes manure.
Soil
In KNF existing soil is amended by a mixture of cultured microorganisms, biochar and growth media. Microorganisms accelerate the conversion of organic compounds and other nutrients from dead plants and animals into a readily-absorbable form. Outputs can include antibiotics, enzymes and lactic acids that can suppress diseases and promote healthy soil conditions.
The basic approach proceeds in four steps, each of which produces a usable amendment. The process takes 3 to 4 weeks.
Microorganism recruitment (IMO1)
A cloth-covered wooden or cardboard box containing fairly dry steamed rice and a few bamboo leaves in a shady area protected from rain left 4-5 days attracts and nourishes local microorganisms. Microorganisms from a somewhat higher altitude than the target fields tend to be more robust. Successful recruitment is indicated by the presence of a white fuzz. Black, green or other prominent colors indicate unwanted strains, requiring a restart. Mixing cultures from different locations, sun exposures and weather increases diversity.
Other ways to collect IMO include filling the hollow core of a freshly-cut bamboo stump with rice or placing the collection box in a rice paddy after harvest.
BS/J nourishment (IMO2)
Diluting the "inhabited" rice with an equal amount of BS/J or jaggery provides nourishment for microorganism growth. After the microorganisms consume the sugar (7 days) the result can be used immediately or stored.
Mill run of wheat (IMO3)
A mix of 40 millilitres (1.4 imp fl oz; 1.4 US fl oz) of IMO2 with 16 ml of BRV, 16ml of FPJ and 40 ml of OHN with 30 pounds of wheat mill run or (rice bran dampened with 20 litres (5.3 US gal) of water provides a medium for further IMO culturing. The result can be extended with 4 litres (1.1 US gal) of biochar. The highly porous biochar provides superior habitat for IMO flourishing and retains carbon in the soil.
IMO3 is fermented in 12-inch high shaded furrows for 7 days, sheltered from rain and covered with straw mats or gunny bags, turning as needed to ensure that its internal temperature remains around 110 °F (43 °C). The resulting mixture's moisture level should be approximately 40%.
Alternative dilutants are rice bran or rice flour.
Soil (IMO4)
Diluting IMO3 with an equal amount of soil, half from the field and half from a locally fertile area allows the microorgansms to reach a larger area.
Alternative mixture (IMO-A)
Another source recommends an alternative mixture as follows, for each hectare:
Applications
Soil enrichment
IMO3 or IMO4 can be distributed thinly on a field, covered with a layer of mulch to retain moisture and provide a dark environment for further IMO growth.
IMO-A should be applied 7 days before planting, 2-3 hours before sunset and a few hours after mixing. For unproductive fields, apply 14 days before planting.
LAB (diluted 5-10000:1) solubilizes phosphate in phosphate-accumulated soil and encourages phosphate decomposition.
Sun-dried salt can be applied to soil at 5 kg for every 10 acres.
Fertilizer
FMC applied 2-3 hours before sunset on a cloudy day and covered with soil/mulch (or lightly plowed with a 1 to 2 inch rotary hoe adds nutrients and microorganisms to depleted soil. Alternatively, FMC can produce liquid fertilizer by placing it in a cloth bag and immersing in water with other KNF inputs.
Foliar feeding
Other inputs are applied directly via foliar feeding to crops at different stages of crop development. Foliar delivery reduce the amount of nutrients required, since they are delivered directly to the plant. Young seedlings with smaller root systems can still be effectively nourished during the reproductive stage when root activity decreases. Foliar nutrient uptake during the reproductive stage is increased due to a decrease in root activity, and the ability to modify the nutrient inputs accordingly.
Nutrients such as phosphorus, potassium and micronutrients bind with the soil complex easily, making them unavailable for crops. More soluble nutrients such as nitrogen easily leach from the soil and end up polluting groundwater or streams.
Seeds/seedlings
KNF prepares seeds for planting by soaking them in a mixture of 2 parts FPJ, 2 parts BRV, 1 part OHN in 1000 parts water.
Soak fast-germinating seeds such as turnip, cabbage and bean for 2 hours.
Soak average-germinating seeds such as cucumber, melon, lotus and squash for 4 hours.
Soak slow-germinating seeds such as rice, barley and tomato for 7 hours.
Soak other seeds such as potato, ginger, garlic and taro for .5-1 hours.
Underdeveloped seedlings can be treated with 1 ml of FAA added to this mix. Overdeveloped seedlings can be treated with 1 ml of WSCA added to the mix.
Vegetative growth
Initially, FPJ (diluted 1000:1) from mugwort (Artemisia vulgaris) and bamboo shoots help crops become cold-resistant and grow fast and strong. Later arrowroot and water/marsh plants with a firm stem help provide nitrogen (diluted 800 1000:1).
Nitrogen-rich FAA can support vegetative plant growth. For leafy vegetables, it is possible to use FAA continuously to increase yield and improve taste and fragrance. Mackerel amino acids help control mites and the green house whitefly (Trialeurodes vaporariorum).
WSCA sprayed on leaves enhances growth. LAB helps increase fruit and leaf size, but the amount of LAB used should be reduced at later growth stages.
Flowering
Use FFJ from grape, papaya, mulberry or raspberry on fruit crops to provide phosporic acid.
Alternatively, apply WSPA (diluted 200:7) or a mixture of WSPA and WSCA. WSCA helps the plant to accumulate nutrients in flower buds, improving future yields and fruit quality.
Use seawater for seedling treatment of onions, big leeks and garlic.
Fruiting
WSCA and FFJ from apple, banana, mango, papaya, peach, and grape enhance flavor and firmness of fruit.
Fermented seawater increase fruit's sugar content and enhance ripening. Fermented seawater prevents and controls anthracnose.
Animal husbandry
Cultured soil can be used in a piggery or hen house. It converts excrement into soil and thereby allows the piggery to operate without the noxious emissions that have afflicted hog production since agriculture began. With no effluent, the piggery no longer attracts flies and does not require periodic cleaning. No special ventilation is used. Pens are laid with sawdust and wood chips with IMO to break down the manure. Hogs are fed agricultural waste.
LAB mixed with FPJ and optionally WSCA can be used as drinking water for livestock, to help with digestion.
Fermented seawater mixed with BRV and WSC and fed to chickens can be used to prevent feather loss in chickens during the summer.
Composting
LAB can reduce damage to compost by neutralizing ammonia gas produced by immature compost.
Pest management
FPJ and/or FFJ diluted with rice bran and water can preferentially attract pests away from crops.
Aphids can be controlled with .7 liters of soap water mixed with 20 liters of water. Alternatively, use HPW. Apply to the plant as a foliar spray.
To control mites, dilute soap water 20x with water. Alternatively, use HPW.
Insect Attractants
KNF insect attractants are non-toxic methods of pest control. During the egg-laying season.
AIA and FIA devices are installed at the height of fruits or leaves in and around the field. They are usually employed during the peak of the reproductive growth of fruit-bearing plants and during the height of vegetative growth of leafy vegetables.
Aromatic
An Aromatic Insect Attractant (AIA) is a mixture of alcohol and rice wine or brandy and FFJ or FPJ (diluted 300:1) in an open container hung when pests lay their eggs.
Fluorescent
A Fluorescent Insect Attractant (FIA) uses a zinc sheet bent in an "L" shape hung so that the shorter side acts as a roof and the other side hangs vertically. A fluorescent light hangs vertically from the corner of the sheet to attract pests. A water-filled basin containing a few drops of gasoline/kerosene hangs underneath the light to kill insects that alight.
Soap water and hot pepper water
Soap water (SoWa) and hot-pepper water (HPW) are used for controlling aphids and mites. When soap water is applied as a foliar spray, sunlight evaporates the water. Evaporation, heat loss and condensation kill the pests.
SoWa is chopped lye soap, boiled in water to make a thick soup and then diluted.
HPW is chopped hot peppers, boiled and diluted.
Experience
United States
In Hawaii, crop productivity increased 2-fold with the use of KNF, while reducing water use by 30% and eliminating the use of pesticides. Cane grass proved to be a superior cover crop on degraded Hawaii fields.
South Korea
Natural Farming was adopted by the South Korean government after successful trials growing rice in one county, where every farmer followed the practice. They increased yields, saved money on inputs and obtained a price premium. Rivers and coastal waters experienced environmental benefits.
A co-op of 40 strawberry farmers used KNF exclusively in 300 foot-long greenhouses, producing increasing output and obtaining a higher price.
In another experiment, farmers in an entire county used KNF to become self-sufficient, with each farm raising 500 chickens, 20 pigs and 5 beef cattle.
Mongolia
In the Gobi Desert in Mongolia, harsh wind and minimal rainfall defeated three attempts to plant trees. With KNF, the trees had a 97% survival rate and as of 2014 had reached 20 feet in height. Corn and barnyard grasses provide livestock feed. Watermelon farming provides a stable income to farmers there.
China
The Chinese Army feeds its service members using its own resources. For the Beijing Olympics, it brought pigs into the city, setting off violent protests over the odour. It then dispatched two officials to South Korea to study Natural Farming. KNF techniques successfully eliminated the odour. The University of Peking now offers Masters and PhD programs in KNF.
Source of the article : Wikipedia
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