夏玉米施用“金正大”缓释肥暨种肥同播农艺技术研究(英文)

[目的]为实现豫东潮土区夏玉米高产和轻简施肥。[方法]采取田间试验示范研究了专用缓释肥对夏玉米产量、经济效益及抗逆性的影响。[结果]周口市商水县潮土区实验点的结果表明,缓释氮比例占45%的专用缓释肥有利于提高千粒重和穗粒数,较习惯施肥,千粒重提高28 g,穗粒数增加16粒。缓释肥促进了夏玉米对养分的吸收利用,可维持土壤氮素养分平衡,增产增效显著,较习惯施肥,应用缓释肥暨种肥同播技术,增产13.5%,增效1 920元/hm_2;较与供试缓释肥等养分的普通肥料,增产10.3%,增效1 215元/hm_2。[结论 ]该研究为周口市大面积在玉米生产上推广缓释肥提供依据;为农机、农艺技术的创新融合拓展了更新空间。

The Agricultural Technology for Manuring and Sowing Simultaneously Applied to Summer Corn "Jinzhengda"

[Objective] The aim was to get a high yield and simplify fertilization of summer corn in moisture soils in the east of Henan province.[Method] Effects of slow-release fertilizers special for summer com on its yield,economic benefits and resistance.[Result] By the slow-release fertilizers containing 45％ slow-release nitrogen,thousand-kernel weight and the number of ear went up by 28 g and 16 kernels,respectively.Slow-release fertilizers advanced nutrient uptake by summer corns and kept soil nitrogen balanced.In comparison to local fertilization approach,corn yield grew by 13.5％ and net profit went up by 1 920 yuan/hm2 by same-term application technique of seed & slow-release fertilizer in comparison to local methods.In comparison to normal fertilizers containing the same-quantity nutrients,corn yield grew by 10.3％ and net profit by 1 215 yuan/hm2.[Conclusion] The research provides references for slow-release fertilizer promotion in production of corn in Zhoukou and innovation and integration between agricultural machines and techniques.