How to grow rice in shrimp farming? Nowadays, many rice fields are not single rice, and some will breed crayfish in rice fields. Therefore, for paddy fields that raise crayfish, much attention is paid when planting rice. In addition to the choice of rice varieties to be planted, it is necessary to do a good job in rice paddy management so that rice can be produced at a high yield. Therefore, today Xiaobian talks about how to grow rice in the paddy fields of crayfish farming.
First, rice variety selection
The rice fields in which the crayfish are cultured generally only grow one season of mid-season rice. The rice varieties to be planted should be selected from the tight-to-ear type with small leaf opening angle and resistance to pests and diseases, lodging resistance and strong fertility.
Second, rice field finishing
When arranging paddy fields, there are still crayfish in the paddy fields. In order to ensure that the crayfish are not affected, it is best to use the rice field no-tillage throwing technique. Rice field no-till is simply a rice plough without any tillage before the rice transplant. Another method is to adopt a cofferdam method, that is, in a field near the shrimp ditch, a bandit 30cm high and 20cm wide, and the ring ditch and the field surface are separated, which is beneficial to the field finishing. The time for the rectification is as short as possible, so as to avoid unnecessary losses caused by excessive long-term density of crayfish in the ditch.
Third, the application of base fertilizer
For paddy fields that have been farmed for more than a year, the large amount of crayfish and straw in the paddy fields, the rotted straw and crayfish manure provide a sufficient amount of organic fertilizer for the rice, so no fertilization is required. For the paddy fields that breed crayfish for one year, you can apply 200-300kg of farmyard manure and 10-15kg of urea per mu of land for 10-15 days before transplanting. Spread the fertilizer on the field and pour it evenly by machine.
Fourth, seedling transplant
The seedlings began to be transplanted in mid-June, and they were combined with shallow water planting, strip planting and side planting. The paddy field for breeding crayfish can be postponed for 10 days, and the transplant density is 30cm×15cm, so as to ensure that the crayfish living environment is ventilated and ventilated.
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