How to Tillage Rice Field by Machine

Different tillage methods should be adopted according to stubble and soil characteristics in mechanically implanted rice field, and base fertilizer should be applied according to soil fertility.

Stubble tillage

The main results are as follows: 1. The previous stubble straw is crushed. The straw must be crushed and scattered evenly when the previous crop is harvested. If no crushing is carried out during the machine harvest, the straw crushing operation should be added or the straw should be removed from the field.

2. Dry and tidy. Under the condition of suitable soil moisture and moisture content, positive (reverse) rotation, shallow ploughing and raking stubble can be used to kill stubble, among which the reverse rotation method is better. Try to avoid deep ploughing. During the operation, the depth should be controlled within 15 cm, the tillage depth is stable, the coverage rate of stubble is high, and there is no missed ploughing. If the land is uneven, it is necessary to add a cross-leveling, so that there are no hidden trenches and potholes in the field, and the height difference and flatness of the field are up to the standard. For the leveling of large area fields, laser leveling technology can be considered for dry leveling. For example, if there are no conditions for the use of laser soil preparation technology for the time being, the fields with large high-low drop should be divided into grid work and the field space should be small, so as to obtain the quality of dry land preparation within the relative range.

3. the water is neat. Pour into shallow water and flatten out after soaking for 24 hours. When the conditions are suitable, the soil can be dried to moderate after dry finishing, and then soaked in water, so it is not easy to form rigid soil. Water finishing can use paddy field stubble pulping machine, paddy field drive rake and other equipment. In the water finishing, we should pay attention to control the appropriate amount of irrigation, not only to prevent rotten operation, but also to prevent water shortage rigid plate operation.

Because the depth of rotary tillage and stubble killing before hydration is shallower than that of the original ploughing layer, coupled with the pulping and leveling ground, and the working conditions are complex, it is necessary to prevent different mud feet and stubble from being taken out of the surface.

After water leveling, the surface of the field should be flat, free of stubble, straw and weeds, etc., the depth of stubble should be more than 4cm, the depth of mud should reach 5cm to 8cm, and the difference between the height of the field should not exceed 3cm.

4. Heavy and solid. After water consolidation, the mechanically inserted field must be moderately solid, sandy soil for 1 day, sandy loam for 2-3 days, clay soil for about 4 days, and the so-called "flower water" in the surface water layer of the field. It is necessary to strictly prevent the field mud from rotting in deep water, resulting in the phenomenon of blocking water and mud during machine insertion. For the fields with high weed density, combined with mud precipitation, suitable herbicides mixed with moist fine soil can be selected to spread evenly after raking, and the water layer of 6 cm / 10 cm can be kept for 3 / 4 days to kill weeds.

Winter ploughing or winter ploughing

After winter tillage rotation of the field, can be taken to cut and rake dry, scraped flat, into the water finishing. For the unploughed winter fallow fields with less stubble on the surface, shallow ploughing or rotary ploughing can be adopted and water leveling can be carried out. The fields with no stubble on the surface, good quality of winter ploughing and flat ground can also enter the water leveling directly.

Winter paddy field tillage

In some areas, because farmers cherish water, the field keeps water until early rice is planted after the harvest of late rice in the previous crop. After soaking in cold water for a long time, this kind of winter paddy field has poor air permeability, deep mud foot, poor reducibility and low soil temperature. For this kind of field, it is necessary to open ditches and lift fields in advance on a sunny day, fertilize and shallow rotary ploughing, grab fine weather and increase temperature in the sun, and be flat and solid about 3 days before planting.