Single-cropping rice super high-yielding cultivation techniques

In recent years, with the rapid expansion of single-cropping rice cultivation area in our county, it has become very important to strengthen the research on high-yielding cultivation techniques for single-season rice. For this purpose, in Baihuai Township, Huai Village in 1999, a hundred acres of high-yield demonstration was carried out. The results show that: 116 acres of demonstration, the average yield of up to 550kg, of which two lines of rice area of ​​37 acres, the average yield of up to 580kg, the maximum yield of more than 650kg per mu. Its cultivation techniques and goals can be summarized as "second line rice, dry seedlings, small seedlings, 84, heavy two, early field depot, pest control, early decay prevention, ten ear rice, over six hundred,". "Second line rice" refers to the selection of Liangyoupeijiu, super rice and other second-class high-quality rice varieties. These varieties have the characteristics of high yield, high quality, multi-resistance, strong adaptability, and large potential for yield increase. "Dry seedlings" refers to the comprehensive application of bran herbicides and the cultivation of dry seedlings. "Seedlings" refers to the use of small and medium-sized seedlings transplanted in the 4-5 leaf stage, that is, transplanting within 15 to 25 days of age control. It facilitates shallow insertion and ensures the planting density. "84" refers to a planting density of 84 inches and acres of planting 18,000 bushes. Changing the original "square" to "rectangular" transplants will help improve the ventilation and light transmission conditions in the later period and increase the rate of success. "Heavy weight" refers to improvement in fertilization methods. The original "base, chase" two fertilization methods were changed to "base, spike" two fertilization methods. The amount of chemical fertilizers for base fertilizer and panicle fertilizer accounted for 50% of the total amount of fertilizer. Panicle fertilizer can be divided into promotion of flower fertilizer and preserved fertilizer, in which the amount of flower fertilizer promotion accounts for about 30% of the total amount of fertilizer. Two-line rice is resistant to fertilizer and should pay attention to increase organic fertilizer and phosphorus and potassium. "Latering on the field" refers to leading the field. In other words, when the number of Honda seedlings reaches 80% of the target target panicle number, it will be put on the field, which will help reduce the number of invalid tillers, increase the number of tillers, and control the number of seedlings under 250,000 per acre. Big spikes lay the foundation for high yields. With the method of putting aside the fields, after the first field is put into practice, gap irrigation is implemented, which can effectively control the breeding of invalid labor. From the booting stage to the heading stage, shallow water layers should be maintained, and the wet and dry water can be alternately watered in the later stage. “Pest-prevention” refers to the realization of the potential for increasing yield by grasping comprehensive prevention and control of diseases, insects, grasses and rats. “Prevention against premature senescence” means that the secondary grouting phenomenon of the second line rice is extremely obvious. In addition to the application of panicle fertilizer in the later stage, grain fertilizers such as grain satiety, hormone compound fertilizer and potassium dihydrogen phosphate should be used for extra-root dressing to prevent premature aging and improve Fruit-setting rate and grain weight. "Tai ear rice" refers to ten effective panicles per bundle. This ensures that large spikes, the total number of grains per panicle can reach 200-220, the seed setting rate is about 80%. "Super 600" means that by adopting the above measures, the per mu output can exceed 600kg.

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