山东农业科学2018，Vol.50Issue(3)：36-40,5.DOI:10.14083/j.issn.1001-4942.2018.03.008
黄淮海北部农田犁底层不同破除程度对夏玉米农艺性状及产量的影响
Effects of Breaking Plow Pan Thoroughly or Partially on Agronomic Traits and Yield of Summer Maize in the Northern Region of Huang-Huai-Hai Plain
摘要
Abstract
Annual rotary tillage has created a compacted plow pan and shallow arable layer which ham-per the high crop yield in the Huang-Huai-Hai Plain region.In order to explore the effects of breaking the plow pan by different degrees on agronomic traits and yield of summer maize,the field experiments were con-ducted in Huangheya Village,Dezhou City of Shandong Province during 2014.Four treatments were conduc-ted,including the original plow pan(RT15),breaking the plow pan by 1/3(DL20),breaking the plow pan by 2/3(DL25),breaking the plow pan thoroughly(DL40).The results showed that the plant height,leaf ar-ea,net photosynthetic rate,ground/underground dry matter and yield of summer maize increased with the in-crease of breaking degree of plow pan when breaking the plow pan partially.All the above indexes of DL25 treatment were the highest and the yield increased by 4.6%, 6.1% and 17.3% respectively than that of DL40,DL20 and RT15.While breaking the plow pan thoroughly was not beneficial to the promotion of yield indexes and even decreased slightly.In summary, the plow pan hindered the crop growth under the present cultivation method and the cultivated layer structure in the northern region of Huang-Huai-Hai Plain.Com-prehensively considering the economic and environmental benefits,breaking the plow pan by 2/3(DL25)was the best choice which could remarkably promote the summer maize yield.关键词
玉米/耕作方式/犁底层/产量/黄淮海平原Key words
Maize/Tillage treatments/Plow pan/Yield/The Huang-Huai-Hai Plain分类
农业科技引用本文复制引用
高建胜,郭建军,崔慧妮,董国豪,郭良海,郭智慧,户传周,李拥军..黄淮海北部农田犁底层不同破除程度对夏玉米农艺性状及产量的影响[J].山东农业科学,2018,50(3):36-40,5.基金项目
国家公益性行业(农业)科研专项(201303130-04) （农业）
山东省现代农业产业技术体系玉米创新团队(SDAIT-02 -19) （SDAIT-02 -19）
国家玉米产业技术体系项目(CARS-02-56) （CARS-02-56）
