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我国北方各省区的土壤,一般含钾比较丰富,但是由于农业生产的发展,施用氮肥和磷肥的数量相继增加,产量日益提高,农作物从土壤中吸收钾肥的数量也随着增加了,若不注意补充,土壤就会缺钾。那么,若想继续获得高产,就受钾肥不足的限制。目前,故然我国南方水稻区由于原来土壤中钾的含量不够丰富,而重视了钾肥,就是北方诸省也有很多地方的经济作物生产感到缺钾。我省的土壤含钾丰富是其特点之一。即便如此,还是有些地区有土壤含钾量大量下降的报道,尤其是有效钾含量的下降。如临洮县洮河两岸和徽成盆地等。
The soil in the northern provinces of our country is generally rich in potassium, but due to the development of agricultural production, the amount of nitrogen and phosphate fertilizer applied has been increasing successively and the yield has been increasing day by day. The quantity of crops that absorb potassium from soil also increases, Supplement, the soil will be potassium deficiency. Well, if you want to continue to get high yield, limited by the shortage of potash. At present, therefore, due to the fact that the content of potassium in the soil in the southern rice area of our country is not rich enough, and the emphasis is put on potash fertilizer, the production of cash crops in many parts of the northern provinces has been found to be deficient in potassium. The province’s soil rich in potassium is one of its characteristics. Even so, there are still some areas where there is a lot of reports of soil potassium reduction, especially the decline of available potassium. Such as Lintao County and the Hui River Basin and other Hui River.