The Latest Black Rice Planting Techniques and Methods Tutorial
Black rice is a distinctive variety formed through long-term cultivation of rice. It is rich in nutrients and also has extremely high medicinal value. In daily life it is often used to make porridge, produce nutritional foods and brew wine, and enjoys the reputation of “black pearl” in the world. So how is it planted? Let's take a look together with Qinnong Web.
1. Sowing and Raising Seedlings
Black rice is different from other rice varieties. It is a temperature-sensitive variety, and its sowing time is relatively strict with regard to climate. Generally, the sowing time is in mid-March, so as to extend its growth period and allow it to head and flower in time before high temperatures arrive. Otherwise, if it has not yet headed when high temperatures arrive, the yield and quality may be affected. Before sowing, sun the seeds and soak them in warm water to increase the germination rate, so that the seedlings emerge uniformly and grow and develop well. Choose a sandy loam field that is sheltered from the wind, faces the sun and has convenient drainage and irrigation for sowing. Sow appropriately thinly at sowing time, which is beneficial for cultivating strong seedlings. Generally, sow 4-4.5 kg per mu of seedling field, and 1.5 kg per mu of main field.
2. Reasonable Transplanting
When the seedlings grow to 15 cm, they can be transplanted. When transplanting, transplant in an east-west direction, with wide rows and narrow plant spacing, and transplant large seedlings with soil. Also pay attention to transplanting density. The number of transplanted seedlings per mu should not exceed 300,000 plants, so that they no longer tiller. The plant and row spacing is 10 cm×22 cm. This can increase ventilation and light transmission between plants, and also make reasonable use of the field soil resources, which is conducive to robust plant growth and improves yield and quality.
3. Apply More Phosphorus and Potassium Fertilizer
Black rice requires different fertility at each stage of growth, and if you want to increase its yield, timely additional application of phosphorus and potassium fertilizer is an important measure. Phosphorus fertilizer is mainly applied as a base fertilizer. Potassium fertilizer application can be combined mainly with the first intertillage and weeding, and later selective topdressing can be carried out according to the plant's growth condition. At the booting stage, a small amount should be supplemented, and it should not be applied excessively all at once. After the heading stage, phosphorus and potassium fertilizer can be topdressed by spraying fertilizer on the leaves. Mix phosphorus and potassium fertilizer with water to make a low-concentration dissolved solution and spray it on the leaves; the effect is excellent. In addition, pay attention to the application of calcium substances. If black rice absorbs excessive calcium substances, its grains will become rough, affecting the taste, so apply little or no lime.
4. Use as Little or No Pesticide as Possible
Nowadays, the prevention and control of rice diseases and insect pests is mainly through pesticides, but pesticides leave residues in rice. When these residues are small, the harm to the human body is relatively little, but continuous accumulation will still affect human health and will also reduce the quality of black rice. Therefore, when planting black rice, use agricultural control as the main prevention and control measure as much as possible. Whether it is diseases and insect pests or other problems, the goal is to eliminate diseases and insect pests and solve the problems without pesticide residues. In addition, black rice should be harvested in time. Once harvesting is delayed, it will affect the quality of the black rice and affect the taste.
The above is the black rice planting technique brought to you by Qinnong Web. We hope it can help you. To learn more about rice planting knowledge, please stay tuned to Qinnong Web.