利用线性方程进行玉米田间测产再探

Research of Using the Linear Equation for Estimation of Maize Yield

玉米秋季测产是一项较繁重的工作,沿用过去的测产方法既费工费时,又不能及时上报测产数据,已不适应现代化农业发展的要求。近几年,我们通过多次试验和实践验证,找出了玉米收获测产时的鲜穗重,鲜穗子实含水量,风干粒重及其它因子之间的内在联系,建立了子实含水量与干鲜比值（干粒重与鲜穗重的百分比）之间的函数关系,探索出一条既省工、省力、省时,又准确可靠的玉米田间测产路子。

A Lot of experiments and practice tests verified, that the internal relations among fresh ear weight, water content of fresh ear kernels, dry kernel weight of corn and other factors were found during the corn harvesting peroid, and established the linear function equation between the watercontent of corn kernels and ratio between the dry weight and fresh weight (percent rate between the dry kernel weight and fresh ear weight) . By use of the equation, we can rapidly conduct corn field yield estimation.