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我市丘陵旱地土壤熟上层浅（６－８ｃｍ），养分含量低，速效钾含量多在 ７０ｍｇ／ｋｇ以下，属缺钾地区。因氮、磷、钾施用的盲目性；同时随品种更新加快，单产不断提高，作物带走的养分愈来愈多，而氮化肥投入量增加，有机肥投入量减少，更加剧了土壤中钾的耗竭。本文着重分
The soil in the hilly drylands in our county is shallow (6-8cm), with low nutrient content and more available potassium below 70mg / kg, which belongs to the potassium deficiency area. Due to the blindness of the application of nitrogen, phosphorus and potassium; at the same time with the update of varieties to speed up, continue to increase yield, more and more nutrients away from the crop, and increase the amount of nitrogen fertilizer inputs, organic manure inputs reduced, but also exacerbated the soil potassium Depletion. This article focuses on points