摘要
以玉米品种吉祥1号为指示品种,在旱作农业区会宁县太平乡大山川村试验观察了全膜双垄沟播二茬种植不同施肥量对玉米的影响,结果表明,施N 300 kg/hm^2、P_2O_5225 kg/hm^2、K_2O 60 kg/hm^2为当地全膜双垄沟播二茬膜栽培玉米的最佳施肥量,其折合籽粒产量最高,为10 879.63 kg/hm^2,较当地传统施肥水平(对照)增产8.80%;产值最高,为20 671.3元/hm^2,较对照增加1 442.6元/hm^2;收益最好,达17 798.8元/hm^2,较对照增加437.6元/hm^2。
A field experiment had been conducted in rain-fed Dashanchuan village,Taiping town,Huining county,the Jixiang1 used as the experimental cultivar,to investigate the effects of fertilizer rate on ditch sowing the second corn in double ridge mulched with plastic film. The result shows that the optimize chemical fertilizer rate are N application 300 kg/hm^2,P_2O_5225 kg/hm^2 and K_2O 60 kg/hm^2,where ridge-furrow cultivation and plastic mulching for two years corn continuous planting,it grain yield is the highest,reached to 10 879.63 kg/hm^2,increased by 8.80% compared with check. Its total income and net profit is also highest,reached to 20 671.3 Yuan/hm^2 and 17 798.8 Yuan/hm^2,which is 1 442.6 and 437.6 Yuan/hm^2 higher than that of the check,respectively.
出处
《甘肃农业科技》
2016年第4期40-43,共4页
Gansu Agricultural Science and Technology
关键词
全膜双垄沟播玉米
二茬种植
施肥量
产量
Double ridge-furrow and plastic mulching corn
Two years continuous cropping
Fertilizer application rate
Yield
