Correct understanding of the method of rotation of the paddy field has a great relationship with the growth of rice and the improvement of the efficiency of agricultural machinery. Therefore, the following tasks should be mastered in the paddy field rotation operation:
First, the right amount of water. Too much water, the field is not easy to start pulping, can not meet the quality requirements; too little water, the field is not easy to flatten. It will also increase the frictional resistance of agricultural machinery in the soil. Therefore, it is generally necessary to master the water 2 to 4 hours before the rotation of the field, the water depth is 6 to 8 cm. Plowed fields, the depth of soaking is appropriate.
Second, the coulter is installed. According to the surface condition of the soil, the installation direction of the coulter elbow of the rotary tiller is determined. Flat ridge operation, coulter elbows are installed outwards; trenching operation, coulter elbows are installed inward; general tillage, coulter elbows are mixed and installed. In order to reduce the direct contact of the rice straw stalks with the coulter shaft, when the two coulters of the left and right sides of the coulter shaft are mounted, the two bolts are lengthened by about 10 cm to eliminate the grass entanglement of the coulter shaft.
Third, the speed of rotation. The forward speed of the walking tractor and the speed of the coulter shaft are determined on a case-by-case basis. For the first time of the unplowed rice paddy field, the tractor can choose to move in slow second gear. The coulter shaft can be selected as low speed: rotary tillage second, third and plowed paddy fields, tractor can The slow third gear speed is selected, and the coulter shaft can adopt high speed.
Fourth, the direction of walking. Many operators use the truss method to make the field edge a heavy loop, which takes time and oil. The correct method should use the slanting method, that is, the locomotive starts to plough the left or right side of the diagonal along the diagonal of the field, and gradually expands outward, and finally laps around the field. This method has high work efficiency, low fuel consumption and good quality.
Fifth, the number of fields is everywhere. According to the agronomic requirements of rice planting, it is best to throw the paddy fields two or three times. Artificially planting the field, it is better to lick it twice. If there are too many fields, it will destroy the soil grain structure, which will easily cause soil compaction. At the same time, it will accelerate the wear and fuel consumption of agricultural machinery: the unevenness of the fields will not reach the agronomic requirements.
Sixth, I am not afraid of slipping. Before the operation, use bamboo poles and other places in the filling of the ponds and ditches to mark them. Once it is slipped, you can take the piling method of self-rescue, that is, hit a wooden stake about 5 meters in front of the locomotive, smash the wire rope on the stake and the other end on the drive wheel. When the gear is engaged, the crank handles the crankshaft to make the tractor walk, and the tractor is pulled out of the trap by the wire rope wound around the driving wheel. Alternatively, you can pull it out with a farmer or a tractor with a higher power.