施肥技术十二个不宜一不宜表施氨肥，旱地应开沟深施，水田施氮后要耘田；二不宜在温室或塑料大棚内施用氨水或碳酸氢锭；三不宜在水田施用硝态氮；四不宜长期单一施用化肥，应配合有机肥施用；五不宜在大雨前施肥；六不宜一次过多施用高浓度肥料，一次施量过多易伤害作物... Fertilization techniques should not be used on behalf of twelve an ammonia fertilizer, dryland should be dug deep facilities, paddy fields after nitrogen to Yun Tian; two unfavorable greenhouse or plastic greenhouses ammonia or bicarbonate ingot; three unfavorable nitrate application in the paddy field Nitrogen; Four should not be long-term single application of fertilizers, should be used with organic fertilizer application; Five should not fertilize before heavy rain; Six should not be too much application of high concentrations of fertilizers, a dose too much easy to hurt crops ...