Farmyard manure is an organic fertilizer that is produced locally in the countryside and accumulates locally, including excrement, livestock manure and poultry manure, and is an important material for the development of ecological agriculture. Each type of farmyard fertilizer has its own characteristics, in the use of reasonable care should be noted. The main characteristics of commonly used farmyard fertilizers and the precautions to be taken during use are as follows: 1. Human excrement: Human fecal urine has high nutrient content, rapid decomposing, and significant fertilizer efficiency. It is called “fine fertilizerâ€. Matters needing attention: 1, before the application of human waste must be thoroughly decomposed, can be used after the detoxification treatment. 2, chlorine plants, such as potatoes, beets, tobacco, etc. are not easy to use, drought, poor drainage of saline land limited application. 3. It is forbidden to mix and store human urine and alkaline ash such as grass ash and ammonium bicarbonate. 4. Do not dry human dung into dry dung and avoid excessive nitrogen loss. Second, pig manure: The texture of pig manure is relatively small, the composition is complex, contains more ammonifying microorganisms, easy to decompose, and the formation of humus is more. Pig manure is a soft and stagnant organic fertilizer. Note: 1. Nitrogen is easy to decompose, phosphorus is high, and organic phosphorus is not easily fixed by soil. Potassium is mostly water-soluble potassium and is easily absorbed by crops. 2. Under the action of microorganisms, phosphorus-containing compounds can easily be converted into phosphoric acid and phosphate; proteins, urea, amino acids, uric acid, etc. must be converted into ammonium salts and nitrates, which are easily decomposed and lost. 3, when the accumulation of pave mats, commonly used soil or peat, soil and fertilizer ratio of 3:1 is better. 4, promote the combination of ring washers and outside the reactor, Qin Qin from the ground, is conducive to maturity of manure nutrients. 5. It is forbidden to pour the ash into the circle so as not to cause the loss of nitrogen. Third, cow dung: cow dung texture dense, similar composition and pig dung, fecal water content is high, poor ventilation, decomposition is slow, low fermentation temperature, fertilizer effect is slow, it is commonly used as cattle manure cold fertilizer. The decomposed cow manure is less effective. Note: 1, cow dung should be added straw, grass, peat or soil gaskets, absorb urine, add horse manure, sheep manure and other hot manure is conducive to promoting cow dung maturing. 2. When adding compost, add calcium, magnesium and phosphate fertilizers to keep nitrogen and phosphorus and improve fertilizer quality. At the same time, about 7 cm of mud should be applied to the outer layer of the compost. 3, good decomposing cow dung should be used as base fertilizer, when the site preparation is applied. Must be cooked after application to ensure nutrient transformation and destroy bacteria and eggs. 4, should not be mixed with alkaline fertilizers, such as ammonia, ammonium bicarbonate and so on. Fourth, the characteristics of chicken manure: 1, chicken manure high nutrient content, total nitrogen 1.03, is 4.1 times the cow dung. Total potassium 0.72%, 4.1 times that of cow dung. 2, in the compost process, easy to heat, nitrogen volatile. Therefore, chicken manure should be stored dry, and then retort before application, and add appropriate amounts of calcium, magnesium, phosphorus fertilizers to play a role in nitrogen. 3, suitable for all kinds of soil, due to its fast decomposition should be used as base fertilizer, can also be mixed with other fertilizers used as base fertilizer. Chicken manure can significantly improve crop quality. 4. Chicken manure has high nutrient content and more uric acid. It is not easy to use more than 1.5 tons of fertilizer per acre, otherwise it will cause burning of seedlings.
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