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国审周麦22号是河南省周口市农业科学院选育的超高产小麦新品种。在豫东潮土区进行了不同氮肥用量和不同基追比对周麦22农艺性状及产量的影响研究。结果表明,在豫东潮土区,在磷、钾肥施用量相同的情况下,随着施氮量的提高对于不同处理的小麦群体没有明显的差异,但是,不同处理的无效分蘖差别比较明显。在磷钾肥分别为120kg/hm2和60kg/hm2的情况下,施氮量控制在300kg/hm2左右肥效比较高,同时,基追比设置5∶5更能提高周麦22号的产量。
National trial Zhoumai 22 is Zhoukou Academy of Agricultural Sciences in Henan Province bred super-high-yielding wheat varieties. The effects of different nitrogen rates and different base rates on the agronomic characters and yield of Zhoumai 22 were studied in the tideland of eastern Henan. The results showed that there was no significant difference for the different treatment wheat populations with the same amount of phosphorus and potassium fertilizers applied in the tidal soil in the east of Henan. However, the difference of invalid tillers with different treatments was obvious. Under the conditions of phosphorus and potassium fertilizers of 120kg / hm2 and 60kg / hm2 respectively, the fertilizer efficiency was relatively high at the rate of 300kg / hm2, and the yield of Zhoumai 22 could be increased by setting the ratio of base to chaser to 5: 5.