CAJ | 학술논문

以黄淮海主推高产玉米品种浚单20为试验材料，通过2 a定位试验，研究了常规耕作＋秸秆还田、深耕＋秸秆还田、深耕＋秸秆不还田、隔年深耕＋秸秆还田4种耕作方式对夏玉米叶面积指数、灌浆速率和产量的影响。结果表明，深耕＋秸秆还田能够增加夏玉米叶面积指数，促进籽粒灌浆，比常规耕作＋秸秆还田增产4．48％～6．65％，连续2 a秸秆不还田产量降低，连续深耕加秸秆还田的增产效果最好，2 a平均增产6．48％。
이황회해주추고산옥미품충준단20위시험재료，통과2 a정위시험，연구료상규경작＋갈간환전、심경＋갈간환전、심경＋갈간불환전、격년심경＋갈간환전4충경작방식대하옥미협면적지수、관장속솔화산량적영향。결과표명，심경＋갈간환전능구증가하옥미협면적지수，촉진자립관장，비상규경작＋갈간환전증산4．48％～6．65％，련속2 a갈간불환전산량강저，련속심경가갈간환전적증산효과최호，2 a평균증산6．48％。
The field experiment was conducted to study the effect of different tillage models (convention-al tillage ,deep tillage+straw returning ,deep tillage+straw returning ,and every other year deep tillage+straw returning) on the leaf area index ,grain filling rate and yield of summer maize .The results showed that deep tillage+straw returning could significantly increase the leaf area index ,promote the grain filling rate ,and improve the grain yield by 4 .48% -6 .65% compared to the conventional tillage+straw return-tng .Without straw returning for 2 years ,the gain yield decreased .The highest yield was from the contin-uous deep tillage+straw returning ,w hich gave an average yield increase of 6 .48% in tw o years .