實際上,生薑的根莖在幼苗期吸收氮、磷、鉀較少,旺盛生長期對磷的吸收量緩慢增加,對氮、鉀的需求量猛增,尤其在旺盛生長期的前期需鉀肥量最多,其次是氮肥;而在旺盛生長期的中、houqixishoudanfeiduoyujiafei,xishoujiafeiduoyulinfei。qiujizhengshishengjiangxufeiliangzuiduodeshihou,yingshishizhuishidanfeiyouzhuyuzengchan,tongshiyingzaishengjiangkuaijingshengchangqijishipenshidiguozhuangdilingshidixiaguoyingyangyunshudaoguanbiancu,tigaodiguopengdahuoli,guomianguanghua,guoxingjianzhuang,youzhigaochan。
在zai生sheng薑jiang生sheng產chan管guan理li上shang很hen多duo農nong民min一yi直zhi沿yan襲xi著zhe傳chuan統tong習xi慣guan,不bu按an需xu肥fei規gui律lv追zhui肥fei,施shi肥fei期qi過guo於yu集ji中zhong,前qian重zhong後hou輕qing,其qi結jie果guo造zao成cheng前qian期qi薑jiang苗miao徒tu長chang,大da量liang養yang分fen流liu失shi浪lang費fei,後hou期qi缺que肥fei,植zhi株zhu枯ku黃huang早zao衰shuai,產chan量liang降jiang低di;有的則偏施氮肥及氮素化肥用量過多,不注意與磷、鉀等各種元素的配合,其結果不僅造成氮素養分的流失和浪費,而且使氮、磷、鉀比例失調,往往造成植株徒長、抗病力減弱、薑塊品質下降等不良後果,影響農民的經濟效益。
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