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GAOJIAXINGDALIANGYUANSUSHUIRONGFEIZAIGUOSHUDENEIXIEZUOYONG
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飞禽走兽DANGXIAANJISUANSHUIRONGFEIZAINONGZISHICHANGDEXIANZHUANGFENXI
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飞禽走兽 SHANGCIFEIQINZOUSHOUZAISHIYONGCHONGSHIFEIZHUYISHIXIANGZHONGSHUOLE,MEIYOUJIHUA,GUODUODESHIYONGGUODUOHANDANYUANSUDESHUIRONGFEIBUJINHUIZAOCHENGSUNSHI,HAIHUIWURANSHUIHEDAQIHUANJING,ZAISHIYONGDALIANGYUANSUSHUIRONGFEISHIYAOGENJUJUTIQINGKUANGANLIANGSHIYONG,NEIMEGAIRUHETIGAOQIZHONGHANYOUDEDANYUANSUDELIYONGLVNI?
据数据统计,25年前我国平均每公顷农田消耗氮肥达188kgN,比同期世界平均消耗水平高出3.7倍,在经济发达的地区,过量施用氮肥而造成的经济损失和环境质量破坏,已到了非常严重的地步,恢复和重建其良好生态系统将要付出极其沉重的代价。而从国外的化肥使用结构来看,他们更注重高磷和高钾水溶肥的配合,产量并无差距甚至更高效。
想提高大量元素水溶肥中氮的利用率,首先飞禽走兽要知道氮肥的主要损失原因。正常情况下,除了渗漏性较强的砂性水田外,其他作物使用大量元素水溶肥飞禽走兽中氮元素流失并不严重,想控制氮元素的流失,首先是降低田地的PH值,添加土壤改良剂等方法,抑制土壤PH值得上升,其次是深施肥,多次施肥,精细施肥,提高氮元素的有效吸收。
QICI,FEIQINZOUSHOUHAIKEYIZAIDALIANGYUANSUSHUIRONGFEILITIANJIAYIXIETESHUDEWUZHI,SHISHUIRONGFEIBIANCHENGHUANSHIFEILIAO,CONGERJIANSHAODANSUSUNSHI。HUANSHIFEILIAODESHIYONGKEYITIGAOFEILIAOZHONGDANDELIYONGLV,HUANSHIFEILIAORONGJIESULVJIAOMAN,BUHUIYINQIQIANGLIEDEHUIFAHELIUSHIZUOYONG,BAOZHENGFEILIAOZHONGDEDANBEIZUOWUCHONGFENXISHOULIYONG,ZHEIYESHIJINXIENIANLIUXINGHUAFEIBAOMODEYUANYIN。LINGWAI,PUJISHUIRONGFEIYITIHUA,FAZHANPENGUAN、CHONGSHI、WEIGUANDIGUANDENGSHIFEIFANGSHI,NENGSHIDANYUANSUDEXISHOULVDAFUDUSHANGSHENG,ZHEIYESHIGUOJIATICHANGSHUIFEIYITIHUADEYUANYIN。