Rice drought is an important cultivation technique for drought resistance, water saving, labor saving, cost-saving, and efficiency increase. Its main technical key is:
First, choose and prepare land. In the early stage of dry rice seedlings, seedlings emerged from natural soil moisture, and the quality of seedlings was closely related to soil quality, soil fertility and land preparation quality. Therefore, we should choose land plots with low topography, fertile land, and certain irrigation conditions; the groundwater level is high, and both spring and summer and autumn are in wet cold soaking conditions or heavily saline-alkali lands.
Second, timely sowing, improve the quality of sowing. Sowing too early, the temperature is low, rice seeds are not easy to germinate, low seedling rate; late sowing temperature is high, soil water is dispersed more, it is not easy to complete seedlings, and because the growth period is shortened, affecting yield. Therefore, the suitable sowing date should be determined according to the soil moisture content and the growth period of the species. Liaoning is generally suitable from mid-April to the end of April. Seeds must be carefully selected and soaked. In order to avoid the harmfulness of underground pests, pesticide seed dressing should be carried out. The sowing amount should be appropriately increased, and 10-12.5 kg per mu is appropriate. Under normal circumstances, drilling can be carried out. The soil is better to be planted on the plots where the barren grass is relatively heavy in the first year. The lyrical plots are broadcast 2-3 cm deep, and the lyrical broadcast depth can be 4-5 cm.
Third, strengthen water and fertilizer management. In order to promote the development of seedling roots and enhance drought resistance, combined with about 3,000 kg of Mushi fertilizer, about 15-20 kg of seed fertilizer and 35 kg of superphosphate are sown. According to the condition of the seedlings, it is appropriate to apply fertilizer and panicle fertilizer. When the rice seedlings 4-5 leaves start to water but no water layer is established. For convenient water sources, water should be poured every 3-5 days, so that the front water will not see the water, and the wet water will not dry; if the water supply is insufficient, ensure that the key water is poured well 5 times, that is, the water for branching, the jointing water, and the spike water , heading water, grouting water. The principle of watering is: "The head is dry, the water is full, and the first three waters are poured."
First, choose and prepare land. In the early stage of dry rice seedlings, seedlings emerged from natural soil moisture, and the quality of seedlings was closely related to soil quality, soil fertility and land preparation quality. Therefore, we should choose land plots with low topography, fertile land, and certain irrigation conditions; the groundwater level is high, and both spring and summer and autumn are in wet cold soaking conditions or heavily saline-alkali lands.
Second, timely sowing, improve the quality of sowing. Sowing too early, the temperature is low, rice seeds are not easy to germinate, low seedling rate; late sowing temperature is high, soil water is dispersed more, it is not easy to complete seedlings, and because the growth period is shortened, affecting yield. Therefore, the suitable sowing date should be determined according to the soil moisture content and the growth period of the species. Liaoning is generally suitable from mid-April to the end of April. Seeds must be carefully selected and soaked. In order to avoid the harmfulness of underground pests, pesticide seed dressing should be carried out. The sowing amount should be appropriately increased, and 10-12.5 kg per mu is appropriate. Under normal circumstances, drilling can be carried out. The soil is better to be planted on the plots where the barren grass is relatively heavy in the first year. The lyrical plots are broadcast 2-3 cm deep, and the lyrical broadcast depth can be 4-5 cm.
Third, strengthen water and fertilizer management. In order to promote the development of seedling roots and enhance drought resistance, combined with about 3,000 kg of Mushi fertilizer, about 15-20 kg of seed fertilizer and 35 kg of superphosphate are sown. According to the condition of the seedlings, it is appropriate to apply fertilizer and panicle fertilizer. When the rice seedlings 4-5 leaves start to water but no water layer is established. For convenient water sources, water should be poured every 3-5 days, so that the front water will not see the water, and the wet water will not dry; if the water supply is insufficient, ensure that the key water is poured well 5 times, that is, the water for branching, the jointing water, and the spike water , heading water, grouting water. The principle of watering is: "The head is dry, the water is full, and the first three waters are poured."
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