How to grow upland rice

Upland rice, also known as upland rice, is an ecotype formed by the long-term domestication and evolution of rice in dry land without water layer. Suitable for cultivation in dry land, it can also be planted in paddy fields or depressions. So, how to grow upland rice?

1. Variety

Production should be selected through the national or provincial examination and approval, and by the breeding, propagation and promotion of integrated management of varieties. For example, the varieties examined by the State are Zhonghan 297 and Luhan No. 1, and the varieties approved in Anhui Province are Handao 906 and Xinliangyou 212.

2. Live broadcast

Upland rice is also called drought-resistant rice. Unlike "rice" grown in paddy fields, upland rice does not need water layer all its life, and is usually fed by rain after direct seeding in dry land or dry fields, or on this basis, appropriate supplementary irrigation. However, upland rice is not wheat and corn, and irrigation conditions must be provided in the special critical period, otherwise it will have a great impact on the yield. Although the requirements of light and temperature for the growth of upland rice are similar to those of rice, the lifetime water requirement of upland rice is about 2 to 3 or less than that of rice.

3. Soil

Upland rice is most suitable for planting in low-lying waterlogged dryland and water-deficient paddy fields, as well as in mountainous areas where Rain Water is more, hills and drylands that can be watered.

From the middle of May to the middle of June, the rice seeds should be exposed to the sun for 2 days before sowing, and mechanical strip sowing or artificial hole sowing should be used. The amount of rice seeds per mu is 3 kilograms (low seed amount for sandy soil and high seed amount for clay), and the sowing depth is 2 color 4 cm. If there is no effective precipitation in the weather forecast at this time, the first permeable water should be irrigated in time to strive for early seedling, uniform seedling and whole seedling. The field inspection was carried out at the seedling 3-Mel 4-leaf stage. If there is a phenomenon of missing seedlings and broken ridges, it can be dense and thinned.

4. Fertilization

Base fertilizer: before ploughing, 20-30 kg of ternary compound fertilizer; seed fertilizer: 15 kg of ternary compound fertilizer and 10 kg of urea before sowing; topdressing of seedlings at 4 leaf stage, 8 to 10 kg of urea per mu and 5 to 10 kg of potash fertilizer; 10 kg of urea per mu about 60 days after sowing, and 70 to 100 ml of plant nutrient solution during filling period.

5. prevention and control of diseases and insect pests

1. Prevention and control of mole cricket: combine base fertilizer with phoxim granule 30kg per hectare to prevent mole cricket from eating seeds, arch soil ventilation and dead seedlings.

two。 Control of rice blast: Fuji No. 1 can be used to control rice blast in the early stage of rice blast and heading stage for 2-3 days.

Due to the low water demand of upland rice, which is widely distributed in northern China, farmers can choose to grow rice or upland rice according to the local rainfall.