肥料品種
多施磷肥,磷肥一方麵在較高溫度下能夠更有效地被利用,產生良好的肥效;lingyifangmian,linfeinenggoutigaoturangzhongshuifendeliyonglv,qidaoxianghucujindezuoyong。lingwaichongzudelin,keyitigaodandeliyonglv,qidaoyilinyangdandezuoyong。jianshaodanfeideshiyongliang,tebieshiyishourefenjiedetanandeng,yinweishoureyifenjiedetananhegaonongdudedanfeiyizaochengzuowushaomiao。
肥料數量
在高溫幹旱季節,在強光的照射下,裸露地麵的溫度可達50℃,蒸zheng發fa強qiang烈lie,地di表biao水shui溶rong液ye的de濃nong度du急ji劇ju增zeng高gao,這zhe時shi如ru果guo施shi用yong和he正zheng常chang天tian氣qi下xia同tong樣yang多duo的de肥fei料liao,作zuo物wu產chan量liang不bu但dan不bu能neng保bao持chi或huo增zeng產chan,而er且qie很hen可ke能neng減jian產chan。例li如ru,在zai降jiang水shui適shi中zhong時shi,玉yu米mi每mei畝mu施shi用yong12gongjinchundan,kenenghuodegaochan,ruogaowenganhanshirengshitongyangduodefeiliaojiumianlinjianchandefengxian。younonghufanying,quniangaowenganhan,baishushifeishuipingyuqiannianxiangtong,jieguobaishuchanliangbuzengfanjian,meishifeiliaodefanerbishifeidechanlianggao。
施肥時間
早晨施肥,雖然人員操作感覺較為舒適,但隨著太陽的升起,氣溫急劇升高,水分很快被蒸發,作物吸收時間短,肥料利用率低;中午施肥,由於溫度高,不利於肥料的吸收和人員操作;傍晚施肥,既適宜人員操作,又能彌補作物吸收時間短的缺點(因為晚上是一個氣溫降低的過程,地表水蒸發減弱,水分保持時間長),是最佳的施肥時間。
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