田间调查农作物密度和稻麦类作物亩成穗数，丈量计算土地面积，是农业科技人员经常碰到的问题，现介绍几种快速简便的调查计算方法。１调查麦类作物密度、成穗数（以小麦亩成穗为例）。１．１方法１．在麦田有代表性的地段量取１米行长，调查双行内小麦总穗数，用其除以行... Field surveys of crop density and number of acres of rice and wheat crops into spikes, measuring the area of ​​land calculated by agricultural scientists and technicians are often encountered problems, are introduced several quick and easy method of investigation and calculation. A survey of wheat crop density, the number of spikes (with wheat acres into the ear as an example). 1.1 Method 1. In the representative of the wheat field volume of 1 meter governor to investigate the total number of double rows of wheat within the total, with its divided by the line ...