高光效对吉林省玉米气候资源利用效率的影响

为研究在东北半干旱地区大田种植条件下,不同种植方式的玉米群体气候资源利用效率、干物质积累情况和产量等特征,为区域玉米高效栽培模式技术提供理论依据.2014—2016年,在吉林省公主岭市进行大田试验,选取先玉335为研究对象,通过田间对照试验方法,分别设置了垄向南偏西20°、种植间距为0.4～1.25 m的高光效和垄向南...

Effects of high light efficiency planting methods on maize climate resource utilization efficiency and yield in Jilin Province

Abstract: In order to study the characteristics of climate resource utilization efficiency, dry matter accumulation and yield of maize populations with different planting methods under field growing conditions in the semi-arid region of Northeast China, and to provide a theoretical basis for regional maize efficient cultivation pattern technology, a field trial was conducted in Gongzhuling City, central Jilin Province from 2014 to 2016, and "Sanyu 335 "In the field trial in Gongzhuling City, central Jilin Province from 2014 to 2016, maize climatic resources utilization under different planting methods was investigated by using a controlled field experiment with high light efficiency and high light efficiency small monopoly with monopoly spacing of 0.4m-1.25m at 20°SW. The results showed that the high light efficiency treatment had higher climatic resource use efficiency, highest harvest index, highest yield, better yield trait performance and higher dry matter accumulation rate after tasseling compared with the high light efficiency mini-monopoly and control. In conclusion, the the high light efficiency treatment has a huge effect on yield enhancement; the combined effect of monopoly orientation adjustment and plant spacing is more obvious for dry matter accumulation and female spike traits, and the planting method can be selected according to the demand in actual production.