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玉米“三合一”口肥由优质农家肥、氮肥、磷肥混合组成。氮肥最好用碳酸氢铵,磷肥用过磷酸钙,农家肥用含水量为30％的潮粪。“三合一”口肥要在播种前7～10天拌匀堆制。每亩玉米的口肥由200～300斤农家肥、20～25斤碳酸氢铵、80～100斤过磷酸钙混拌堆制而成。堆制“三合一”所用的农家肥要用腐熟的粪肥,未发酵的鸡粪和未经沤制的炕洞土不宜采用,否则容易烧坏种,造成出苗不齐。
Corn “three in one” mouth fat by the high-quality farmyard manure, nitrogen, phosphate fertilizer composition. Nitrogen fertilizer is best to use ammonium bicarbonate, phosphate fertilizer used superphosphate, farm fertilizer with a moisture content of 30% of the tide. “Three in One” mouth fat to 7 to 10 days before sowing well mixed heap system. Mouth of corn per mu fertilizer from 200 to 300 pounds of manure, 20 to 25 kg of ammonium bicarbonate, 80 to 100 kg mixed with superphosphate heap made. Composting “three in one” used by farmed manure to use decomposed manure, unfermented chicken manure and unglazed kang cave soil should not be used, or easily burned species, resulting in emergence of missing.