Black rice planting technology

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

1. Sowing and raising seedlings

Black rice is different from other rice varieties, it is a temperature-sensitive variety, sowing is more strict for the climate, the general sowing time is in mid-March, so as to prolong its growth period and heading poplar flowers in time before the high temperature comes, otherwise the yield and quality may be affected before the high temperature comes. Before sowing, the seeds were treated with drying and soaking in warm water to improve the germination rate, make the seedlings neat, grow and develop well. Select a sandy loam field with leeward direction and convenient drainage and irrigation to sow seeds and sow seeds sparsely, which is beneficial to cultivate strong seedlings, generally sowing 4-4.5kg per mu of seedling field and sowing 1.5kg in the field.

2. Reasonable transplanting.

Transplanting can be carried out when the seedlings grow to 15cm, and the seedlings should be transplanted in east-west direction, wide rows and narrow plants, large seedlings with soil, and pay attention to the transplanting density. The number of transplanted seedlings per mu should not exceed 300000, so that they no longer tiller. The row spacing of plants is 10cm × 22cm, which can not only increase the ventilation and light transmittance between plants, but also make reasonable use of soil volunteer, which is beneficial to plant growth and improve yield and quality.

3. Increase the application of phosphorus and potassium fertilizer

The required fertility of black rice is different at each stage of growth, and in order to increase its yield, timely application of phosphorus and potassium fertilizer is an important measure. Phosphate fertilizer is mainly base fertilizer, and the application of potassium fertilizer can be combined with weeding in the first tillage, and selective topdressing is carried out in the later stage with the growth of the plant. However, a small amount of supplementary application should be applied at booting stage, and it is not suitable to apply too much at one time. After heading stage, we can top apply phosphorus and potassium fertilizer, mix phosphorus and potassium fertilizer with water into low concentration dissolved oxygen, spray fertilizer on leaves, and the effect is excellent. In addition, we should pay attention to the application of calcium, black rice absorbs too much calcium will make its grain rough and affect the taste, so it is necessary to apply little or no lime.

4. Use little or no pesticides as much as possible

Nowadays, rice planting is mainly through pesticides to control diseases and insect pests, but pesticides will leave residual poison in rice, which will do less harm to the human body when the amount of residual poison is small, but the continuous accumulation will also affect people's health and reduce the quality of black rice. Therefore, in the cultivation of black rice, try to use agricultural control-based control measures, whether it is diseases and insect pests, or other problems, to achieve the purpose of eliminating diseases and insect pests and solving problems without pesticide residues. In addition, black rice should be harvested in time. Once the harvest is 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, please pay attention to the pro-agricultural network.