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1. Select the appropriate water-saving varieties to choose medium-early-ripening, water-saving, high-quality and stable product varieties such as Ningxiang No. 24 (97XW-723), Fuyuan No. 4 (96D10), Ningyan No. 27 (Ji T39) and Chaoyou No. 1.
2, using early breeding techniques, nurturing strong (1) do a good seed drying, seed selection, disinfection and soaking seed processing work, disinfection and soaking time should be 8-10 days to protect Miao Qi, Miao Zhuang.
(2) When selecting Putian, it is advisable to choose irrigation and drainage, take shelter from the vegetables, or dry land or garden in Xiangyang as a paddy field.
(3) It is appropriate to make a trampoline with a trampoline area of ​​10 meters and 1.8 meters. After the first leveling, it is plowed more than three times.
(4) The fertilization of farmyard manure should be used for fertilization, less nitrogen fertilizer should be applied, and phosphorus and potassium fertilizer should be added to increase drought tolerance.
(5) Dry seedlings are planted, hand-picked pods are used to remove perforated membranes, suitable for early sowing, adequate irrigation of bottom water, irrigation on the same day, sowing on the same day, sowing on the same day, reducing the sowing volume, and sowing seeds per square meter for hand transplanting shall be 200 -300 grams, machine seedling sowing seeds per square meter is about 600 grams.
(6) Control the frequency of watering. The core of dry seedlings will allow the seedlings to grow close to the conditions of the dry field and water as little as possible after emergence. When the bed is dry in the morning and evening, sooner or later, the leaves of the seedling leaves without water, or the midday leaves show one of the three indicators due to dry rolling, it is necessary to fill the water once. The first irrigation is performed 10-12 days after sowing, and only 2-3 times of water is applied during the whole breeding period, which is conducive to the growth of the underground and the cultivation of dry roots.
(7) See green ventilation on hardening seedlings and control the growth of leaf sheaths. Seedlings generally see the green (about one third of the open soil) on the ventilation, just beginning to small ventilation at noon, until the end of the leaf after the opening of the film before sunrise, and gradually increase the ventilation, cloudy open at noon for two hours ventilation Ventilate, but pay attention to early bed insulation.
3. It is an important part of water saving cultivation to reduce irrigation surface and improve the quality of soil preparation. The irrigation surface shall be controlled within 0.8-1.0 mu; the three drought-prepared land shall be implemented, namely dry-rotary tillage, dry-leveling, and dry-fighting. The difference between the heights of the fields shall not exceed 3 cm.
4. Reapply base fertilizer. The whole-layer fertilization base chemical fertilizer should be combined with the last shallow ploughing of paddy fields. Apply 80% pure nitrogen and P and K fertilizers to the soil throughout the whole growth period, and the remaining 20% ​​be used as tiller and panicle fertilizers. Fertilizer utilization.
5. Focusing on rapid transplanting, reasonable and sparsely concentrated workers will focus on transplanting on the basis of rapid soil preparation. The transplanting period will be May 10-20 and the planting density will be 30 centimeters and 13 centimeters with 2-3 seedlings per hole. In places where water shortage is particularly serious, 10% of the number of acres can be appropriately increased for proper close planting.
6. Water-saving control After irrigating and transplanting the seedlings in the field, the field shall maintain the thin water layer and return to the green seedlings, but it must not be sunburned. At the same time, attention should be paid to the low temperature, and the irrigation depth should be appropriately increased. After each stage of fertility, after irrigation, the water layer is no longer maintained (except for application of topdressing fertilizer), and water is re-irrigated when the soil surface reaches the irrigation index (see the table for soil appearance indicators before irrigation in each stage of fertility). After the natural dry.
7. Preventing Rice Blast Diseases to Strengthen Field Disease Observations and Finding Diseases to be Prevented and Controlled in Time
Rice water-saving cultivation techniques
Rice is one of the three major food crops in the Yellow River Irrigation District, and is also the largest water-consuming crop in our region. The amount of water used per mu is 3-4 times that of wheat. Through the adoption of rice water-saving irrigation control technology and standardization of drought breeding and sparse planting technology, it can save about 400 square meters of water per acre compared to conventional irrigation, save more than 30% water, increase production by more than 10%, and increase income by 100-150 yuan.