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土豆的施肥管理
双击自动滚屏 发布者admin 发布时间2016/7/25 22:37:47 阅读1215次 字体

我国河北甘肃东北等地是土豆的高产地区以甘肃为例甘肃常年播种土豆的面积在2万公顷左右每年都会有65%的商品土豆远销南方和沿海地区优质的土豆已经成为当地农民脱贫致富和推动地方经济发展的一项重要工程要想得到优质的商品土豆就必须要合理的进行施肥管理
1施足基肥土豆施肥以基肥为主一般占总用肥量的60%70%左右基肥结合整地或覆土时施入播种后每亩用23吨厩肥盖种同时把总施肥量50%的氮肥40%的钾肥?#22303;?#32933;磷肥全部做基肥与2袋金宝?#27425;?#29983;物菌肥混合后条施在厩肥上随即覆土厩肥来源广取材方便养分全是理想的土豆有机肥和盖种材料注意这时一定要用发酵好的厩肥如果发酵不好会在土壤里进?#23567;?#20108;次发酵并?#19968;?#24102;有病菌影响土豆的生长最好用金宝贝肥料发酵剂进行发酵发酵腐熟后的厩肥使用更安全肥效更好
2早施追肥 氮肥在追肥中要早施不宜过迟尤其在后期以避免茎叶徒长和影响块茎膨大及品质中后期以施钾肥为主配合金宝?#27425;?#29983;物菌肥施用齐苗时进行第一次追肥促早发增加光合作用面积追肥最好避开中午宜在下午进行最好是沟施应避免肥料沾上叶片如果追肥时是将肥料撒施后应立即浇水以加速肥料溶解兼顾清洗叶片
3适?#22791;?#22806;追肥土豆对钙镁硫等中微量元素要求较大为了提高品质?#23665;?#21512;病虫害防治
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