玉米宽行双株增密高产栽培技术试验示范

为了探讨玉米不同株行距配置、玉米宽行双株种植方式对玉米产量和农艺性状的影响,于2015年开展了本试验。结果结果表明:同一个品种在同一试验点,等行单株种植、等行双株种植和不同种植量条件下,其各个生育时期和生育期的天数没有变化;不同种植量的株高、穗位、空秆率略有变化;随着种植密度的增加,有穗长变短、穗粗变细和秃尖增加的趋势;其穗行数、行粒数、穗粒数、千粒质量、出籽率和单穗粒质量均有减少趋势。宽行双株种植比当地大田常规种植方法667 m~2产量增长25%左右。

An Experiment Demonstration of High Production Cultivation Technique for the Corn with Wide Line in Pairs and Density Increase

In order to discuss the impact of different row spacing dispositions and the planting way of wide line in pairs on corn output and agronomic characters, this paper carried out this experiment in 2015. The result showed that: the identical variety in the same test point, under the conditions of average line of single planting, average line of planting in pairs and different planting quantities, had no change about its birth period and the days of birth period;there was a slight change about the height, the place of corncob and the rate of no seeds for different planting quantities;along with the planting density increase, it had the tendency of shorter and thinner corncob, and more bare point, as well as the decrease tendency of the lines of seeds,the numbers of each line, the seeds number of the corncob, the weight of 1000 seeds, the rate of seeds production and the weight of each seed. Compared with the normal way of planting in a large field 667 m2, the wide line in pairs could increase the output by 25%.