The calcium superphosphate is crushed and sifted. Then 100 kilos of superphosphate are used to uniformly stir 120 to 150 kilograms of human urine, and then they are piled into a conical shape, tightly packed with 3 centimeters of mud, and stacked for 7 days. Fertilizer ideal. Be careful not to pile up in low places to prevent flooding; this soil compound fertilizer can be used as a base fertilizer, top dressing, and seed fertilizer. Base fertilizer can be divided into manure fertilizer and soil miscellaneous fertilizer. When it is used as a fertilizer, it should not be in contact with seeds to prevent influence. Germination; when dressing for fertilizer, it can be applied in a ditch or in kansui, 7 centimeters from the root of the crop to prevent burning of seedlings, and strict soiling after application.
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