基肥水平及生育后期叶面喷氮对于不同春小麦品种产量和品质的影响

EFECTS OF THE BASIC FERTILITY LEVELS AND THE FOLIAR SPRAYING OF NITROGEN IN LATE DEVELOPMENTAL PERIOD ON GRAIN YIELD AND QUALITY OF DIFFERENT SPRING WHEAT VARIETIES

试验结果表明，在宁夏引黄灌区灌淤土上增施基肥可增产１５．２％，并显著提高了小麦籽粒蛋白质含量，使蛋白质产量增加４４．８％，实现了产量和蛋白质含量同步提高，但对蛋白质品质的影响因品种而不同。不同基肥水平结合生育后期叶面喷氮，对产量影响不显著。虽可增力。蛋白质含量，却不能使蛋白质产量大幅度提高；对蛋白质品质的影响因品种关系蛋白质高低亦不同。

The experimental results showed that when the base fertllizer was used in thegrain yield, grain protein content and grain protain yield on irrigation watered soil of Ningxia irrigation area were 15. 2%, 22. 9%and 44. 8%respectively higher than the base fertilizerthat was not used, therefore, increasing of base manure was the fundation of getting highyield and good qpuality of spring wheat, but the effects on grain protein quality were different in accordance with varieties. The grain yield in the foliar spraying of nitrogen under thedifferent base manure levels decreased, the grain protein percentage increased, but thegrain protein yield could not increase highly. The effects on grain protein quality were alsodifferent according to varieties that have different protein percentage.