At present, the price of fertilizer is higher and the cost of agriculture is increased. If self-made soil-based fertilizer can greatly reduce costs. The self-made raw materials for soil and fertilizer are extensive, the method is simple, economic and practical, and its fertilizer effect is no less than that of chemical fertilizers.
Earth ammonia
50 kg of fresh cow dung, 5 kg of cooked gypsum powder, sealed at 25 °C for 3 days, 3 times the application of water, fertilizer efficiency higher than ammonia.
Earth ammonium sulfate
50 kg of human urine, 5 kg of plaster, and 25 kg of water were mixed and stirred. After 10 days of application, the fertilizer was equivalent to ammonium sulfate.
Soil Compound Fertilizer
The calcium superphosphate is crushed and sieved, and then 100 kg of superphosphate is used to stir 120-150 kilograms of human urine, and then the mixture is conical. The slurry is tightly covered with 3 centimeters of mud and stacked for 7 days. Fertilizer ideal. Be careful not to stack low to prevent flooding. The base fertilizer can be mixed with manure fertilizer and soil miscellaneous fertilizer; when it is used as a seed fertilizer, it should not be in contact with the seeds to prevent affecting germination; when it is used as a top dressing, it can be applied by ditches or holes, and it is a certain distance from the root of the crop. In order to prevent burning seedlings, the cover should be strict after application.
Potassium Dihydrogen Phosphate
Superphosphate and hot water are mixed uniformly in a ratio of 2:5, allowed to stand for 48 hours, and filtered for backup: Straw ash and hot water are mixed evenly at a ratio of 6:15, left to stand for about 10 minutes, and then these two kinds of filtration are The solution is mixed into a crude solution containing potassium dihydrogen phosphate, the effect of which is the same as potassium dihydrogen phosphate.
Soil and Nitrogen Phosphorus Compound Fertilizer
Bone powder processing with animal bones is an important delayed fertilizer and is generally used as base fertilizer. The bone meal is a powder obtained by simply cooking and removing some of the fat and crushing the bone powder, which contains 2% to 6% of nitrogen and 15% to 28% of phosphorus pentoxide. Is a highly efficient nitrogen and phosphorus compound fertilizer: cooked bone meal (also known as defatted bone meal) is the bone after solvent extraction of fat. After smashing after high-temperature cooking, which contains 15% to 5% nitrogen, phosphorus pentoxide 16% to 25%, its fertilizer efficiency is also higher.
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