First, the benefits of fall to the ground:
1. The spring temperature rises quickly, the evaporation amount is large, the air is dry, the wind is windy, and the loss of soil moisture when it is turned over is much larger than that in autumn.
2. The spring warms up quickly, especially since rice has been planted in the reclamation area, the spring planting time has become more pressing, the spring turning time is pressing, and the fall-turning land can reduce the labor force and avoid scrambling for time when the spring is busy.
3, spring drought and less rain, autumn rain is often more than in spring, autumn and winter land can be more savings in autumn and winter rain and snow, can make up for the lack of spring, spring autumn rain.
4. Fall-turning land can not only improve the soil, deepen the plough layer, eliminate pests and diseases, eliminate weeds, but also has the function of water storage and protection against drought and flood.
Second, the fall of the technical points:
1. Turn up early and turn late to master the depth of ploughing. It should be carried out early after the autumn harvest so that there will be sufficient time to mature the soil, and it will be beneficial to the accumulation of soil in the late autumn and the establishment of a soil plough reservoir to realize the use of spring in autumn.
2. When ploughing is too late, it is inevitable that catching up with autumn rain will increase the cost of autumn turning land. As a result, the quality of the fall-land is not high, and it is easy to form a sticky strip after turning it over, and it becomes a block after drying. For example, if the soil is too dry, there is a large resistance to the ground, the work efficiency is low, and the quality of cultivation is poor. Greatly affected the progress and quality of spring fields in paddy fields, and it was not conducive to the waters.
3, fall to pay attention to soil moisture. When the soil moisture content is 18%-22%, it is suitable for turning to the ground. After the soil is finely crushed, the seedlings are kept well, and the resistance to turning over is small and the work efficiency is high. Autumn turn should give priority to ploughing earthy and sticky land in order to achieve loose soil and accelerate soil ripening.
4. The autumnal land can be immediately site-prepared. If sufficient time is available before freezing, it can be used for rotary tillage to prevent running water.
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