The latest course of black rice planting techniques and methods

Black rice is a characteristic variety formed by long-term cultivation of rice. It is rich in nutrition and has high medicinal value. It is often used to cook porridge, make nutritious food and make wine in life. It enjoys the reputation of "black pearl" in the world. How is it grown? Let's take a look at the pro-agricultural network together.

1. Sowing seedlings

Black rice is different from other rice varieties. It is a temperature-sensitive variety. It is strict to the climate when sowing. Generally, the sowing time is in the middle of March. In this way, its growth period can be prolonged. The flowering poplar flower can be ears in time before the high temperature comes. Otherwise, the yield and quality may be affected before the high temperature comes. Before sowing, the seeds are sun-seeded and soaked in warm water to improve the germination rate, make the seedlings neat and grow well. Select a sandy loam field with leeward sun and convenient drainage and irrigation for sowing. When sowing, it is appropriate to sow sparsely, which is beneficial to cultivate strong seedlings. Generally, 4-4.5kg shall be sown per mu seedling field and 1.5kg shall be sown in field.

2. Reasonable transplanting

Transplanting can be carried out when seedlings grow to 15cm. Transplanting should be carried out in east-west direction, wide row and narrow plant, large seedling with soil, and transplanting density should also be paid attention to. The number of seedlings transplanted per mu should not exceed 300,000, so that they will no longer tiller. The spacing between plants is 10cm×22cm, which can increase the ventilation and light transmittance among plants, and can reasonably utilize the soil volunteers, which is beneficial to the growth and health of plants and improves the yield and quality.

3. Increase phosphorus and potassium fertilizer application

The fertility of black rice is different in each stage of growth, and it is important to increase phosphorus and potassium fertilizer in time to improve its yield. Phosphate fertilizer was mainly applied as basal fertilizer, potassium fertilizer could be applied mainly in combination with weeding in the first intertillage, and selective topdressing was applied in the later stage according to the growth status of plants. At the booting stage, a small amount of supplementary fertilizer should be applied instead of excessive application at one time. After heading stage, phosphorus and potassium fertilizer should be applied by spraying fertilizer on leaves, and phosphorus and potassium fertilizer should be mixed with water to adjust to low concentration dissolved oxygen, and leaf fertilizer should be sprayed. The effect is excellent. In addition, pay attention to the application of calcium substances, black rice absorption of excessive calcium substances will make its rice grains become rough, affecting the taste, so to apply less or no lime.

Minimize or eliminate pesticides

At present, the cultivation of rice diseases and insect pests is mainly through pesticides, but pesticides will leave residual toxins in rice, these residual toxins are less harmful to human body when the amount is small, but the continuous accumulation will also affect human health, but also reduce the quality of black rice. Therefore, when planting black rice, try to use agricultural prevention and control measures, whether it is pests or other problems, to eliminate pests and diseases, solve problems without pesticide residues. In addition, black rice should be harvested in time. Once harvested late, it will affect the quality and taste of black rice.

The above is the black rice planting technology brought by the pro-agricultural network. I hope it can help you. If you want to know more about rice planting knowledge, please pay attention to the pro-agricultural network.