豫北夏播玉米籽粒直收品种比较试验

Comparative Experiment on Grain Direct Harvest Varieties of Summer-sown Maize in Northern Henan Province

玉米机械籽粒收获被认为是继玉米单粒播种之后又一次玉米生产技术的重大变革。为筛选出适合豫北种植、综合农艺性状好、产量高、适宜机械化籽粒直收的玉米新品种,2022年进行了7个玉米品种的比较试验。结果表明,适宜豫北地区机械直接收获籽粒的品种为MC812。其籽粒含水量(24.84%)在9月30日即已达到籽粒直收标准。虽然其产量(12 930.0 kg/hm^(2))比豫单888、京农科736略低,但考虑到收获后的晾晒成本及下茬作物小麦适期播种等因素,玉米品种MC812为最佳选项。为规避气候因素、病虫危害等对单一品种带来的潜在风险,播种时可选择玉米品种MC812搭配种植京农科736、豫单888。

Corn mechanical grain harvesting is considered to be another major change in corn production technology after single seed sowing of corn.In order to select a new maize variety suitable for planting in northern Henan with good comprehensive agronomic characters,high yield and mechanized direct harvesting of seeds,seven varieties were compared and tested in summer of 2022.The result showed that the maize variety MC812 was outstanding.Its grain water content(24.84%)reached the standard of grain direct harvest on September 30.Although the yield(12930.0 kg/ha)was slightly lower than that of Yushan 888 and Jingnongke 736,MC812 was the best option by considering the factors of the drying cost after harvest and the suitable wheat sowing of the next crop.In order to avoid the potential risks of climate factors,pests and diseases to a single variety,maize variety MC812 can be selected for sowing,and Jingnongke 736 and Yudan 888 can be planted together.