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为探讨施肥及栽培密度对春小麦生物性状和产量的影响以及春小麦生产的适宜的密度与肥力,以优质强筋小麦龙麦33号和中筋小麦克旱21号为试验材料,设置了3个肥力水平和3个密度水平,分析了在不同的肥力和密度的共同处理下这2个小麦品种的生物性状和产量的变化。结果表明:不同氮肥和密度处理下,2个小麦品种在整个生育时期的生物性状总体变化无明显规律;克旱21号和龙麦33号在中等肥力、低密度(D2E1)处理下产量最高,分别为5 508.0和5 647.5kg/hm2;在不同氮肥处理下,低密度(E1)处理产量整体较高密度(E3)处理高;在不同密度下,中等肥力(D2)处理从整体上产量较低肥力(D1)和高肥力(D3)高,其他处理间无明显规律。
In order to investigate the effects of fertilization and planting density on the biological characteristics and yield of spring wheat and the suitable density and fertility of spring wheat, three high-gluten wheat cultivars, Longmai 33 and Zhonghao wheat Khan 21, And three density levels. The changes of the biological traits and yield of the two wheat cultivars under different fertility and density treatments were analyzed. The results showed that under the different nitrogen and density treatments, there were no obvious regularities in the overall biological characters of the two wheat cultivars during the whole growth period. Khan 21 and Longmai 33 had the highest yield under medium fertility and low density (D2E1) (5 508.0 and 5 647.5 kg / hm2, respectively). Under different nitrogen treatments, the yield of low-density (E1) treatment was higher than that of high-density (E3) treatment. Under different densities, Low fertility (D1) and high fertility (D3) were high with no obvious regularity among the other treatments.