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迄今,人们尚未测定春小麦在亚拉巴马地区土地上对于氮的需求量.作者的这项研究测定了氮肥类型及氮的使用量对春小麦农业性状的影响.作者在诺福克的沙壤土上种植了两季“比戈”和“德利拉”这两个春小麦品种.施用的氮肥分别为硝酸铵与尿素,以此作为提供氮素的来源.施用的氮量分别为每公顷50、100、和200公斤.氮的用量增大,植株加高、产量增加,而且在施用尿素时,也使籽粒的蛋白质含量增加,但并不影响每株穗数和单位容积的籽粒重量.当施用尿素时,“德利拉”的产量与籽粒的蛋白质含量密切相关,但施用硝酸铵则无此相关性.
To date, the demand for nitrogen for spring wheat in the Alabama region has not yet been determined, and the authors of this study determined the effect of nitrogenous fertilizer types and nitrogen use rates on spring wheat agronomic traits. The authors planted on sandy loam in Norfolk Two spring wheat cultivars, “Bige” and “Delila”, were used as nitrogen sources, respectively, using ammonium nitrate and urea as nitrogen sources, respectively, at 50 , 100, and 200 kg.Nitrogen levels increased, plant height increased, the yield increased, and also increased the protein content of the grain during application of urea, but did not affect the number of kernels per panicle and the unit weight of the grain. When urea was applied, the yield of “Delira ” was closely related to the protein content of the grain, but no correlation was found with ammonium nitrate.