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小麦含氮百分数和植株对氮素的吸收,与由于增施氮肥致使小麦对氮索的利用有所差异是一致的。已经明确,茎和籽粒的含氮量及吸收量随施氮量的增加而增加。有人提出,为了提高氮素的利用率,应使更多的氮素由秸秆转移到正在发育的籽粒中。所以,以二对矮秆基因小麦Kalyan Sona为对照种,对高产的三对矮秆基因小麦H.D.1941和U.P.301进行氮素利用方面的研究,是完全必要的。材料和方法试验用3个小麦品种(Kalyan Sona,
The percentage of nitrogen in wheat and the absorption of nitrogen by plants are consistent with the differences in the utilization of nitrogen in wheat due to the application of nitrogen fertilizer. It has been clarified that the nitrogen and uptake of stems and kernels increase with increasing N rates. It was suggested that in order to increase the utilization of nitrogen, more nitrogen should be transferred from the straw to the developing grain. Therefore, it is absolutely necessary to study the nitrogen utilization of three pairs of dwarfing wheat H.D.1941 and U.P.301 with two pairs of dwarf wheat Kalyan Sona as control. Materials and Methods Trials Three wheat cultivars (Kalyan Sona,