CAJ | 학술논문

采用随机区组设计和二次饱和-D最优设计,对洛玉4号玉米新品种进行密度和N、P、K不同配比的优化施肥模式试验.结果表明:洛玉4号高产种植最适宜密度为6～7万株/hm~2左右,高产栽培应在稳定穗粒数的基础上增加穗数.洛玉4号最高种植效益时的N、P、K最佳使用比例为N:P_2O_5:K_2O =1.82:1:1.19,具体使用量为N 270.4 kg/hm~2,P_2O_5 148.3 kg/hm~2,K_2O 177.2 kg/hm~2.
채용수궤구조설계화이차포화-D최우설계,대락옥4호옥미신품충진행밀도화N、P、K불동배비적우화시비모식시험.결과표명:락옥4호고산충식최괄의밀도위6～7만주/hm~2좌우,고산재배응재은정수립수적기출상증가수수.락옥4호최고충식효익시적N、P、K최가사용비례위N:P_2O_5:K_2O =1.82:1:1.19,구체사용량위N 270.4 kg/hm~2,P_2O_5 148.3 kg/hm~2,K_2O 177.2 kg/hm~2.
The optimization experiment of N,P,K fertilizer and planted density of new corn varieties was conducted by the randomized block design and secondary saturation-D optimal design.The results showed that the optimum planted density of Luoyu 4 was 60000-70000 / hm~2.The spike number was increased based on stabilizing the grain number per spike to obtain high yield.When N:P_2O_5:K_2O was 1.82:1:1.19, Luoyu 4 could obtain the highest planting benefit.