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冀南棉区大面积喷施硼肥取得了可喜的增产效益,为了弄清土壤有效硼含量与棉花喷硼效果,研讨棉花土壤有效硼缺乏、适宜、中毒临界指标,本文对此进行了研究。
In order to find out the effective boron content of soil and the effect of spraying boron on cotton, this paper studied the critical boron and boron deficiency of cotton soils, suitable and poisoning indexes.