【摘要】 通过20年津郊潮土肥料定位试验,探讨施钾处理与其它处理对土壤养分、作物产量、品质等的影响。结果表明,施钾能提高作物产量,改善土壤养分状况,提高作物蛋白质、氨基酸的含量。不施钾肥,耗竭土壤钾素,会出现钾肥亏缺,使作物减产。更多还原

【Abstract】 The twenty years experiments of fertilizers applied in fluvo-aquic soil was conducted to de-termine the effect of fertilizer on the soil nutrients,crop yield and quality.The results showed that K fertilizer could increase yield and content of protein and amino acid of wheat,improve content of soil nutrients.If K fertilizer was not applied,the soil express K lack and output would be decreased.更多还原