The full-scale transplanting of wheat straw into rice can be carried out by transplanting wheat straw in full and returning rice into two parts.
Wheat straw full amount of machinery back to field
Harvesting at the beginning of June When the wheat matures, it is harvested with a half-feed combine harvester, leaving a height of 10-15 cm. The straw cutting device was turned on, and the wheat straw was cut into small pieces of 5 to 10 cm and evenly spread in the fields.
In the initial stage of decomposing the straw in the field, the nitrogen content in the soil will be reduced due to microorganisms competing for nitrogen. A certain amount of nitrogen fertilizer should be applied before the water is released from the field, and 1 kg of pure nitrogen (6 kg of ammonium bicarbonate or urea) should be added per 100 kg of straw. 2.2 kg), and at the same time make up for phosphorus and potassium fertilizers. Shiji fertilizer put water after soaking, soaking time to soft straw, bubble through the tillage layer for the degree. Generally soaked for 12 hours, the straw softens, the soil is soaked for 24 hours, and the clay is soaked for 36-48 hours. The soaking time is too short, the cultivation layer is not soaked, the pulping degree of the soil is low during operation, the straw and the mud cannot be fully mixed, and the flatness of the field is low; if the soaking time is too long, sand and clay will cause soil compaction, which is not conducive to burying grass and Pulp.
Mechanic returned to the field to select high-efficiency, low-emission straw returning machines that are compatible with medium-sized tractors. The new type of mechanically rotating grass and rotating water with the water are conducive to improving the efficiency of mechanical operations and the efficiency of burying grass. At the same time, rotary irrigation with water has reduced the mechanical load and power consumption, and in particular, improved the flatness of the rotary ploughing and burying fields, and the rotary ploughing can achieve two operations of burying grass and flattening the field. When the operation is carried out, the operation is carried out twice and horizontally. The first time, the length of the field is covered with the ploughing method to avoid ploughing. It can be replanted properly to increase the effect of burying the grass. The second pass can be leveled using the “circumvention method†and increased appropriately. Speed ​​of work. The water layer must be strictly controlled when the machinery is returned to the field. The water layer is too deep and the amount of floating grass increases, affecting the flatness of one-time tillage and the quality of rice transplanting operations.
Rice machine plug
The varieties were selected as early maturing late japonica rice varieties with moderate growth periods such as Ningjing 1, Huaibei 10, and Nanyu 44.
Nurture cultivating maggots using machine-inserted floppy disks to raise pods, and prepare 30 floppy disks per mu. Seedlings are sown before and after May 25th, and 150g of buds are sowed in each cultivar. On June 10-15, the machinery was planted and planted. The age of the larvae was within 20 days, the leaf age was 3.5-4 leaves, and the seedling height was 13-18 cm.
Daejeon manages shallow water and soil preparation and chooses an efficient and low-cost orange stalk returning machine that is compatible with medium-sized tractors. It will be planted after 1-2 days of planting in Daping. Planting spacing 30 cm, plant spacing 11.7 cm per acre inserted 19,000 points, each hole inserted 4-5 seedlings, basic seedlings per acre 70,000 -9 million. Applying 20 kg of pure nitrogen per acre, the proportion of base fertilizer, tiller fertilizer and panicle fertilizer is 3:3:4, and the ratio of nitrogen, phosphorus and potassium is 1:0.3:0.5. Water slurry management and pest control are conducted according to precise quantitative cultivation techniques.
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