作物播种时,为保证苗全,苗壮,需要测定土壤墒情,以确定播种什么作物,播种的深浅。下面介绍一种土壤墒情(土壤含水量)的速测方法: 采取5点取样,每点用铁铲取0～20Cm深壤0.5公斤,混合均匀,去掉草根、石块等杂物,按四分法取四分之一土样装入塑料袋内,带回室内 Crop sowing, in order to ensure full seedlings, seedlings, the need to determine the soil moisture to determine what crops sown, sowing depth. The following describes a soil moisture (soil moisture content) of the rapid test method: take 5 o’clock sampling, each point with a shovel 0 ~ 20Cm deep soil 0.5 kg, mix well, remove the grass roots, stones and other debris, by quarter France take a quarter of soil samples into plastic bags, back to the room