不同种植方式、种植密度、施肥方式对并单669号产量和品质的影响

Impact of Different Planting Patterns,Planting Density and Fertilization Modes to Bingdan 669 Yield and Quality

试验研究了不同种植方式、种植密度、施肥方式对并单669号产量和品质的影响。结果表明,并单669号玉米新品种在宽窄行7.2万株/hm2,N2P2K2(350-100-80 kg/hm2)施肥水平条件下,产量、纯收益、肥料效益最高;在宽窄行7.2万株/hm2,N1P1K1(280-72-75 kg/hm2)施肥水平条件下肥料利用率最高;每形成100 kg籽粒宽窄行7.2万株/hm2条件下吸收氮、磷、钾养分含量最低;不同种植方式、种植密度的不同施肥水平下玉米籽粒淀粉含量,以N2P2K2(350-100-80 kg/hm2)施肥水平最高。说明并单669号玉米品种最适宜的种植方式为宽窄行种植;最适宜的种植密度为7.2万株/hm2;最适宜的施肥水平为N2P2K2(350-100-80 kg/hm2)。这可为并单669号的合理推广利用提供理论依据和指导。

Through effect experiment of different planting patterns,planting density and fertilization modes on yield and quality of Bingdan 669,the results showed that the yield,fertilizer benefit and net income of new maize variety Bingdan 669 are the highest on72 000 plants/hm^2wide-narrow row and N2P2K2（350-100-80 kg/hm^2）fertilization level;the fertilizer use efficiency is the highest on72 000 plants/hm^2wide-narrow row and N1P1K1（280-72-75 kg/hm^2）fertilization level.The absorption of nitrogen,phosphorus and potassium content is the lowest to yield 100 kg seeds.Base on different planting patterns,planting density and fertilization level,the maize grain abtains is the highest starch content on the N2P2K（2350-100-80 kg/hm^2）fertilization level.It shows that the most appropriate planting pattern of the maize variety Bingdan 669 is wide-narrow row planting;the best planting density is 72 000 plants/hm^2 and the most appropriate fertilization level is N22P2K（2350-100-80 kg/hm）.This will provide the theoretical basis and guidance for reasonable utilization and extension of new varieties Bingdan 669.