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小麦千粒重是构成小麦产量的三因素之一,其受小麦品种、管理水平、气象因素等多重影响。通过对近几年渭南市小麦品比试验中千粒重的变化趋势进行比较分析,初步对本市影响小麦千粒重的主要因素进行分析得出:4月、5月份降水量大小影响显著;田间管理水平尤其是磷钾肥施用量、氮肥追施量和追施时期对千粒重也有较大影响;品种之间千粒重有差异,但不显著。
Wheat grain weight is one of the three factors that make up wheat yield, which is affected by wheat varieties, management level and meteorological factors. Through the comparative analysis of the trend of 1000-grain weight in the wheat ratio test of Weinan in recent years, the main factors that affect the 1000-grain weight of wheat in this city are preliminary analyzed. The results show that the amount of precipitation is significant in April and May, Phosphorus and potassium fertilizer rates, topdressing amount of nitrogen fertilizer and topdressing period have a greater impact on 1000-grain weight; there is a difference between 1000-grain weight among varieties, but not significant.