Rice planting and control of rice blast

Glutinous rice is an indispensable food in the daily life of urban and rural peoples. Due to the high quality of local rice wine glutinous rice blast, the rod height is not resisted, and the net production of rice crops occupies low output. The enthusiasm of farmers for planting is not high, and the contradiction between market supply and demand is prominent. The hybrid rice planting technique has solved this outstanding problem well. The implementation of intercropping can achieve: 1 reduce, control the damage of rice blast, and control the effect of pest control and weeds, to achieve cost-saving, increase efficiency and income. In the large-scale hybrid planting in the demonstration and promotion area, the leaf blast rate of hybrid rice does not exceed 2%, and the diseased leaf rate of glutinous rice is also controlled at about 10%. The panicle blast rate of panicle blast does not exceed 15%, and the panicle rate of glutinous rice is also controlled at about 23%. 2 Do not apply or reduce pesticides, especially if they do not use high-toxicity, high-residue (toxic), highly polluting pesticides to protect the ecological environment and human health. 3 High-yield japonica rice is planted between hybrid rice lines, and the hybrid rice root system is developed and utilized. The relatively short and hard supporting role of the poles effectively prevents the lodging of glutinous rice. 4 The technique is simple and easy. Farmers can understand it at a glance, and they will learn it. When the yield of hybrid rice is 5, they can be averaged in the average yield of hybrid rice. Produce 35 kg of cereals. The technical standards for the intercropping of rice are: 1. Reasonably matching the diversity of planting varieties according to local conditions: (1) Principles for selection of varieties: Reasonable varieties collocation is the use of rice biodiversity to control rice blast disease (plants of mixed crops) The key to technological success. The selection of genetic background of rice varieties is mainly focused on the intercropping of hybrid rice and japonica rice, two major varieties with relatively different genetic backgrounds. In terms of agronomic traits, hybrid rice is generally selected as a variety with good quality, high yield, strong resistance, and mid-maturity or mid-maturity at late growing stages. The characteristics of “high-and-short” varieties are prominent for japonica rice varieties, that is, the ratio of japonica rice is used. Hybrid mid rice rods are 15-20cm tall and have a short growth period of 7-10 days. They have strong tillering ability, lodging resistance, early growth, and high yield per plant. The matching principle of economic traits is the combination of high-product varieties and high-quality varieties to meet the needs of enterprises and farmers for high-yield and high-quality products, fully embody complementary economic benefits, and increase the enthusiasm of farmers for diversified planting. In the implementation, according to local conditions such as fertilizer, soil fertility, altitude, and other cultivation conditions, the combination of local indica rice and hybrid high-yielding varieties is selected, and according to the local farmers' farming habits, the farmers' favorite varieties are selected for combination and matching. (2) Variety combinations: You can choose 沱江糯1, 竹丫谷, 宜糯931, 高大span, and other japonica varieties and ii优7, d优527, 宜香优1577, 岗优3551, 川香Youhao No. 2 and other hybrid rice varieties are collocated. 2. Science timely breeding: In order to facilitate the farmers to raise the eel, the adoption time of hybrid rice and japonica rice sowing demonstration promotion area is in late March. In the way of raising eel, we generally adopt the simplified technology of dry eel breeding and cultivate strong seedlings. In the selection of seedbeds, the general choice of soil fertility medium, sunny terrain, good drainage, convenient water source, flat and breathable, surrounded by dry land or vegetable garden without shade as a seedbed. In the production of seedbeds, hybrid rice and japonica rice were used for splitting the rice seedlings. The rice varieties were grown in a 1.3-meter-wide box and a 0.5-meter-wide groove. The bed soil was fully owed and owed well, and the nutrient soil mixed with a strong agent was applied. Generally, 5kg of soft soil is mixed with 1kg of stinging agent, spread evenly on the seedbed of 10-15 square meters, and mix it thoroughly with glutinous rice, so that it is completely mixed with 2-3cm of topsoil, and then poured enough water to make enough base fertilizer. Application of 15-20 kg of manure water per square meter after sowing, covering the earth after the film. The seedlings of 1.5 to 2.5 kg (1-1.5 kg/mu) of dry seeds for hybrid rice of Honda for each hectare and 3.75 kg (0.25 kg/mu) of indica rice seedlings were raised. In the management of seedbeds, after digging the film, it must be checked frequently. Before sowing, it must be sealed and kept warm. For example, bed soil is white, and moisture is insufficient to remove the film with a sprayer or a watering can. When the temperature in the film exceeds 30°C, the film can be cooled at both ends. In case of continuous low temperature and rainy weather, you can open two air changes for 10 minutes at noon. When the seedlings reach the same level, the fine earthworms mixed with strong scorpion agent are used to prevent bacterial blight, and the seedlings are uncovered. 3. Cultivation methods and field management: The earliest rice seedlings in the demonstration and promotion area were transplanted on May 20, most of them were transplanted in late May, and transplanting was basically completed in early June. Generally, 0.12 million litters of japonica rice are planted in acres, and 16,000 litters of hybrid rice are planted in acres. The total number of nests per mu is controlled at 1.7-1.8 million litters. For wide and narrow row planting, mid-season rice was planted at a size of (1.0+0.5) ft. 0.5 ft., and a row of glutinous rice was planted at two intervals in each row. The medium-planted rice and glutinous rice in the shed were 0.8-1.0 ft. For dumplings, press 3-4 meters to open the car, plant one row (or double rows) of indica rice, and throw medium-sized rice in the box. Field fertilizer management is conducted according to conventional high-yield measures, and pest and disease monitoring is performed seriously. Generally, pesticides are not used to control leafhoppers; when it is necessary, use tricyclazole pesticides to prevent it once. When more than 95% of the yellow panicles are ripe, they are rushed to clear harvest, and strive to achieve fine-grained harvesting. The pellets are returned to the warehouse. Generally, the indica rice matures 7-10 days earlier than the hybrid rice, and it adopts the method of cutting ear to harvest, single-sun and single-storage.

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