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1.合理施用氮肥 为了保证蔬菜的卫生品质,适当控制菜田氮肥用量是关键。从产量与品质两方面综合考虑,施用氮肥品种以铵态氮与硝态氮各半的硝酸铵为最佳。 2.平衡(配方)施肥 氮磷钾平衡
1. Reasonable application of nitrogen fertilizer In order to ensure the health of vegetables, proper control of vegetable nitrogen fertilizer is the key. Taking both yield and quality into account, it is best to apply nitrogenous fertilizer in the form of ammonium nitrate with half of ammonium nitrogen and nitrate nitrogen. 2. Balance (formula) fertilizer NPK balance