High-yielding cultivation techniques of Rice "Indica-glutinous intercropping"

Rice "indica-waxy intercropping" refers to a configuration of hybrid indica rice and glutinous rice, that is, the selection of medium-culm hybrid indica rice and high-culm glutinous rice, and the use of wide rows in wide rows of indica hybrid rice. according to a certain band width, row ratio and width to increase the planting mode of single row glutinous rice to form the complex of hybrid indica rice and glutinous rice in the same field. According to the principle of three-dimensional agriculture, intercropping is carried out by making use of the characteristics of different rice varieties, different ripening periods and different plant heights, so as to make multi-level utilization of temperature and light resources and increase the accumulation of photosynthetic area and photosynthetic products. a new practical technology for increasing rice yield.

(1) the main advantages of indica glutinous intercropping technique

1. Increase the yield of rice. The experimental results show that on the basis of large area planting density, due to the increase of density and multi-layer three-dimensional utilization, the yield of rice can be increased by 46.5 kg per mu, and the net increase of 15.5 kg per mu can be achieved. The results of large area typical comparative investigation showed that the total yield of indica and waxy intercropping was about 28 kg / mu and 110 kg higher than that of conventional glutinous rice.

2. Increase income. The price of glutinous rice is about 15% higher than that of ordinary medium indica hybrid rice, increasing production and income. Together, the output value of glutinous rice can be increased by 50 yuan per mu and net income by 35 yuan.

3. It overcomes the problems that glutinous rice net cropping is susceptible to disease, low yield per unit area, and high-quality indica hybrid rice is difficult to popularize because of low net cropping yield, and enriches the market supply.

4. The planting techniques of medium hybrid rice were standardized and improved. The intercropping field is planted in semi-arid or wide and narrow rows, and its cultivation techniques are relatively standardized. When intercropping rice is used in general fields, the planting density is increased, which promotes the popularization and application of standardized cultivation techniques of rice.

(2) main cultivation techniques and measures

1. Select improved varieties. Do a good job in the collocation of main and intercropping varieties. The hybrid rice varieties such as Zhunliangyou 527 and Jinyou 725 were selected with moderate plant height, strong adaptability, high yield and excellent rice quality, while the glutinous rice intercropped with Nuoyou 1 and Jingnuo 1 should be selected with hard culms and lodging resistance, large panicle and many grains, and good quality varieties.

2. Reasonable planting. The semi-arid type wide and narrow row or wide row narrow plant planting and double plant planting hybrid rice were selected, and a row of high quality glutinous rice was planted every 4 rows (1.5 ~ 2 feet between plants and 1200 ~ 1500 nests per mu). There were 6 plants per litter of conventional glutinous rice and 2 plants of hybrid glutinous rice.

3. Scientific fertilization. Select special fertilizer for rice as base fertilizer and apply 40kg to 50kg per mu. At tillering stage, urea per mu was 8 kg / mu, and at panicle stage, 100 kg / mu of Liboduo was sprayed with 50 kg / mu of water to 60 kg of water.

4. Strengthen the comprehensive control of diseases, insect pests and weeds.

5. Other technical points of indica-waxy intercropping. The main results are as follows: (1) Hybrid indica rice and glutinous rice are sown and planted at the same time. (2) the seeds were treated with chemicals before sowing. (3) if glutinous rice or hybrid rice is harvested at the right time, ratooning rice can be left. (4) other measures are the same as the management of main hybrid medium rice.