①土壤酸堿度的影響。首先土壤pH影ying響xiang肥fei料liao類lei型xing的de選xuan擇ze,在zai酸suan性xing土tu壤rang上shang應ying選xuan擇ze生sheng理li堿jian性xing肥fei料liao,反fan之zhi,應ying選xuan擇ze生sheng理li酸suan性xing肥fei料liao。其qi次ci,土tu壤rang養yang分fen的de有you效xiao性xing決jue定ding了le土tu壤rang中zhong某mou些xie養yang分fen的de有you效xiao性xing和he豐feng缺que狀zhuang況kuang。在土壤pH 7~8時,微量元素硼、錳有效性最低,土壤容易缺乏這兩種元素。當土壤pH 7~8.5時,土壤中磷的有效性最低,容易產生磷缺乏症。
②土(tu)壤(rang)質(zhi)地(di)的(de)影(ying)響(xiang)。在(zai)沙(sha)性(xing)土(tu)壤(rang)上(shang),可(ke)溶(rong)性(xing)硼(peng)容(rong)易(yi)淋(lin)失(shi),甜(tian)菜(cai)缺(que)硼(peng)的(de)幾(ji)率(lv)較(jiao)大(da)。另(ling)外(wai),土(tu)壤(rang)質(zhi)地(di)影(ying)響(xiang)施(shi)肥(fei)方(fang)法(fa),在(zai)保(bao)肥(fei)性(xing)好(hao)的(de)黏(nian)性(xing)土(tu)壤(rang)上(shang),可(ke)加(jia)大(da)基(ji)肥(fei)和(he)種(zhong)肥(fei)用(yong)量(liang);在保肥性差的沙土上,可適當減少基肥和種肥用量,增加追肥用量和次數。
③turangyangfenzishendeyouxiaoxinghechuliang。butongturangleixingyangfendeyouxiaoxinghechuliangchayijiaoda,butongyingyangyuansuyouxiaoxingdebiliyebuyiyang,tiancaiduigezhongyangfendexishoushiyouyidingbilide。yinciyaogenjuturangyangfenzhuangkuanggeitiancaishifei,ruzaiheituqu,shisanyaosudebilianN:P2O5: K2O為1.5:1:1;在碳酸鹽黑鈣土區,N:P2O5: K2O為1:1.5:1。
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