【摘要】 对河南省主要土类耕层土壤23个样区的土样有效硫和有效硼含量分析表明:河南省主要土类耕层土壤有效硫含量普遍较高,除对喜硫的作物外,一般均不需要施用硫肥;土壤有效硼含量因土壤质地、有机质含量、土壤pH值不同存在一定差异.更多还原

【Abstract】 The contents of effective Sulfur and Boron in plough layer soil from 23 soil samplings in major parts of Henan province were amalyzed. The results indicated that the content of effective Sulfur are generally higher, so crops except liking sulfur ones didn’t supply sulfur fertilizer. The contents of effective Boron existed different according as soil texture, soil pH, soil organic matter, soil kinds and so on.更多还原