METHOD loosening and soil moisture for spring and landings CROPS DIFFERENT CULTURES

摘要

Dosing in irrigated crop in an area with negative temperature in winter is that during the day before the onset of frost or before the onset of frost, where water no longer be absorbed into the soil is impregnated place spring planting crops and water at a depth of 200-300 mm , water freezes, i.e. It forms ice crystals which increase the amount of tear and ground into fine particles obtained wet spring loose as sand and soil layer.