论文部分内容阅读
本文通过试验明确了应用大豆两垄一沟栽培法既保持垄作抗旱耐涝、种床温度高、适应性广的特点,又吸收了窄行密植的优点,能使田间绿色面积增加1/4以上,扩大了个体生活领域,改善了冠层中的光照条件,充分利用了光能。在一定程度上改进了耕层土壤结构,提高了土壤含水量和地温,协调了土壤三相比,从而促进了根系生长发育。该栽培法比70厘米垄上双行精量点播增产15~25%,且便于轮作、田间管理和机械化作业,提高了经济效益。
In this paper, the experiment shows that the application of two ridge and one groove cultivation method of soybean not only maintains the characteristics of drought resistance and waterlogging of ridge, high temperature and wide adaptability of seedbed, but also absorbs the advantages of narrow row and dense planting and can increase the green area of farmland by more than 1/4 , Expanding the area of individual life, improving the lighting conditions in the canopy, and making full use of light energy. To a certain extent, the structure of topsoil was improved, soil moisture content and ground temperature were increased, and the three-phase comparison of soil was coordinated to promote root growth and development. The cultivation method has a yield increase of 15-25% more than that of the 70 cm single row double row precision on demand, and is convenient for rotation, field management and mechanized operation, and improves economic benefits.