倒伏对玉米机械粒收田间损失和收获效率的影响

薛军,李璐璐,谢瑞芝,王克如,侯鹏,明博,张万旭,张国强,高尚,白氏杰,初振东,李少昆

Effect of Lodging on Maize Grain Losing and Harvest Efficiency in Mechanical Grain Harvest

Jun XUE,Lu-Lu LI,Rui-Zhi XIE,Ke-Ru WANG,Peng HOU,Bo MING,Wan-Xu ZHANG,Guo-Qiang ZHANG,Shang GAO,Shi-Jie BAI,Zhen-Dong CHU,Shao-Kun LI

表1 玉米田间倒伏及机械粒收产量损失描述

Table 1 Statistical description of observed values on lodging and grain loss in mechanical grain harvest

玉米季 Maize season 调查指标 Indicator 样本量 Sample quantity 平均数 Average (%) 最大值 Maximum (%) 最小值 Minimum (%) 变异 系数 CV (%) ≥ GB/T-21962-2008样本量 ≥ GB/T-21962-2008 sample quantity 春玉米 倒伏率 Lodging rate 240 9.9 89.0 0.0 146.1 109 Spring maize 落粒损失率 Kernel loss 240 0.5 5.5 0.0 142.0 1 落穗损失率 Ear loss 240 2.9 31.3 0.0 157.3 49 总损失率 Total grain loss 240 3.4 33.4 0.0 139.4 54 夏玉米 倒伏率 Lodging rate 124 13.2 89.7 0.0 156.7 59 Summer 落粒损失 Kernel loss 124 1.1 3.6 0.1 61.2 0 maize 落穗损失 Ear loss 124 5.0 26.1 0.0 120.7 43 总损失 Total grain loss 124 6.1 27.8 0.2 100.2 49