peifangshifeidejichugongzuoshixuanliao,zhejuedinglenideshifeixiaoguo。jiumuqiandeshichangeryan,chanzashijia,yumuhunzhudeqingkuanghenduo,zhejiuyaoqiunongminpengyoucaliangyanjing,duozhangwokexuezhishi,yongzhengquedetaiduxuanzefeiliao,qianwanbu 可 抱 有 僥jiao幸xing心xin理li,要yao充chong分fen認ren識shi一yi分fen價jia錢qian一yi分fen貨huo的de市shi場chang規gui律lv。肥fei料liao含han量liang與yu價jia格ge呈cheng正zheng比bi,如ru出chu現xian含han量liang高gao價jia格ge低di的de現xian象xiang就jiu需xu要yao慎shen重zhong考kao慮lv其qi真zhen假jia。除chu選xuan擇ze大da量liang元yuan素su氮dan、磷、鉀外還要考慮中微量元素。
而重要環節則是搭配,“大鍋菜”原料搭配的主要依據是根據吃飯人數和大眾口味。配方施肥的原料搭配是針對作物的需肥規律和產量水平而定。比如:對氮、磷、鉀的需肥規律小麥是3:1:3、玉米是4:1:2、花生是4:1:3,除此之外,還要考慮他們對中微量元素的需求,比如:小麥喜錳,花生喜鉬,玉米喜硼、鋅。“大鍋菜”deyuanliaosuiranduo,dandoutongdengzhongyao,queyibuke,peifangshifeiyeshiyiyang,queshaomouzhongyuansu,huiyingxiangchanlianghezhiliang,guoduozerongyizaochenglangfei,youdehaikenengfashengfeihai。suoyi,zaizhidingzuowupeifangfeiliaoshi,yaoyijuzuowuxufeiguilvhechanliangshuiping、土壤養分和供肥能力、不同養分的利用率等因素合理配置肥料。
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