紫色土施肥对冬小麦根系生长及产量品质的影响

在国家紫色土肥力与肥料效益监测基地长期定位试验小区上，研究了不同施肥对冬小麦根系生长、产量品质的影响。结果表明，施肥有利于小麦根系长度、根表面积的增加，根系活力的提高。有机肥配施化学肥料（MNPK）或NPK配施，有利于小麦获得较高产量。施有机肥或氮肥或磷肥或钾肥对小麦籽粒粗蛋白质、氨基酸总量、必需氨基酸含量均产生一定的积极影响。有机肥配施化学肥料处理（MNPK），小麦籽粒品质得到进一步改善。

Effects of fertilizers application on winter wheat root growth,grain yield and quality in purple soil

Effects of fertilizers application on winter wheat root growth , grain yield and quality were studied on the National Purple Soil Fertility and Fertilizer Efficiency Monitored Base. The results showed that fertilizers application obviously increased root length, root surface area, root activity; MNPK and NPK promoted wheat growth and development and head length formation, then raised wheat grain yield. Applying Organic fertilizer or chemical N or P or K fertilizer could raise wheat grain protein content, total content of amino acids and total content of essential amino acids. Organic fertilizer combination with chemical N,P and K fertilizer could further improve wheat grain quality.