Keywords:
- soil
- volume mass
- porosity
- water permeability
- winter wheat
- cotton
- repeated crop
- corn
- mung bean
- soybean siderates
Abstract
In the 2:2 system of crop rotation, main crops winter wheat and cotton are planted twice. Also, after winter wheat, the soil is cultivated in different ways in the summer, and two repeated crops are planted. Siderates are planted twice in the early spring after the second year’s repeat crop is harvested and before the second year’s cotton is planted. As a result, it is ensured that the volumetric mass of the soil left by the plants is reduced by the same 0.03 g/cm3 in the 0-50 and 0-70 cm layers, and by 0.02 g/cm3 in the 0-100 cm layer. At the same time, the porosity of the soil increased, and its amount was 48.9% at 0-50 cm, 48.1% at 0-70 cm, and 47.4% at 0-100 cm. The improvement of these properties of the soil also led to an increase in water permeability. During the 6th hour of the experiment, the water permeability of the soil is ensured to reach 619.3 m3/ha.
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