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农民在播种之前或者进行农作物管理之前,都要看一看土壤墒情,此时的土壤湿度适合不适合播种或管理。现介绍一种简单的测定土壤墒情的方法——目测法。测时首先选择一块地中几个有代表性的点作观测地段,深度一般以10厘米为宜,然后取出样土,分辨土壤墒情等级,并视其具体情况,确定相应的措施。目测土壤的湿度,可分为5个等级:一级:用手捏土团,有水从指缝中流出,摔到地上时,泥浆四溅。表示土壤水分过多,氧气缺乏,对作物生长不利,应开沟排水降渍,防止湿害。
Before sowing or prior to crop management, farmers have to take a look at the soil moisture, at this time the soil moisture is not suitable for sowing or management. Now introduce a simple method to determine the soil moisture - visual method. First, select a piece of land in the representative of a few points for the observation area, the depth is generally 10 cm is appropriate, and then remove the soil samples, soil moisture levels were resolved, and depending on their specific circumstances, to determine the appropriate measures. Visual soil moisture, can be divided into five levels: Level: soil pinch by hand, water flows out from the fingers, fell to the ground, the mud splash. Said the soil is too much water, lack of oxygen, adverse to crop growth, drainage ditch should be ditched to prevent wet damage.