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最近以氮素肥料为中心的根外喷肥使用很多,关于肥料成份的根外喷肥都有人曾详细论述。在此笔者将根外喷肥的使用方法与其效果作如下叙述。一、根外喷肥为何能进行呢在根外喷肥的效果被确认以来的四十五年间,很多作物在确认其效果上有反复。根外喷肥的主要目的是当根发生了什么障害时,急应的养份补给、在植物体内发生养份不足(特别是微量元素不足时所进行缺乏养
Nitrogen fertilizer as the center of the recent use of root outpouring a lot of fertilizer on the composition of the root out of fertilizer have been discussed in detail. Here I will root out of fertilizer use and its effectiveness as described below. First, the root out of fertilizer why it can be done? The effect of fertilizer outside the root was confirmed since the 45 years, many crops in the confirmation of its effect on the repeated. The main purpose of root outpowers when the root is what the disorder, the urgent need of nutrient replenishment, the occurrence of nutrient deficiency in plants (especially the lack of trace elements when the lack of support