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Rice plastic film dry cultivation is a new high-efficiency water-saving cultivation method, and it is necessary to grasp the control measures in cultivation.
1. Suitable areas. The rice source should be selected to be insufficient, the dry and dry crops should not be preserved, and the sorghum land with certain water source conditions and the low-lying dryland area should be cultivated in the dry-film cultivation to ensure the live tree after transplanting and in the case of other droughts. The heading and flowering period can be watered and hydrated. It is not advisable to use plots with shallow soil layers, poor fertility and heavy salinity to avoid continuous cropping.
2. Select the variety. The variety should be selected from varieties with high drought tolerance, strong tillering ability and moderate growth period, and the growth period is controlled at 140-150 days. For example, Yanyou 559, Fuyang 2524 and Jiuyou 138 can be used.
3. Cultivate dry and strong sputum. The use of fertilizer bed drought breeding, breeding standard dry breeding and strong. Requires 35-40 days of age, 20-25cm of seedling height, and 3-4 stalks per plant. It provides strong drought-tolerant and strong sorghum for the cultivation of mulch film, which is beneficial to shorten the time of returning to green, reduce planting and planting, and promote Daejeon is too early to grow seedlings. Before the sowing, use the marmot nanny to carry out seed coating to prevent the disease and blight. Make a dry breeding trampoline at 1:15. Putian sprays with drought and phlegm to prevent weeds. Seedling 1 leaf 1 heart period, 667m2 trampoline spray 15% paclobutrazol wettable powder 150g, anti-miao long. Appropriate hydration and anti-death seedlings in the 2-3 leaf stage. After the 3 leaf stage, the soil moisture of the seedbed was strictly controlled to control the seedlings with water. One day before the transplanting, the water was poured once a day to treat the worm.
4, apply enough base fertilizer. Apply N10-12.5kg, P2O57.5kg, and K2O5-6kg to the cultivated land. The application rate of nitrogen fertilizer base accounts for about 70% of the amount of field use.
5. Work on the ground. The field is transplanted, the width is 5.4m, 6 ridges per ridge, 3 rows per ridge, and the width of the groove is 25cm.
6, deficiencies. Before the transplanting of the field, the bottom shovel should be poured to make the water content of the 5cm topsoil saturated. In the field of covering the mulch film, the Dingwei mixture is used to remove the turf, and the weeds and other weeds can be added to the field.
7, film transplanting. Daejeon uses a double-five mulch film with a film width of 6 m or biodegradation. After tiling, it is compacted with gully soil, and then re-digested once with diced mixture in wow ditch. Transplanting specifications, 5.4m wow wide planting 18 rows, row spacing 33.3cm, plant spacing 12cm, control density in 2.0-2.2 million points, basic seedlings 4.5-55,000. When planting, the membrane is broken with the seedlings, and the living water is poured in time after planting.
8, fertilizer and water operations. In the early stage, the fertilizer was applied once, and the mid-increasing application of panicle fertilizer attacked the ear, the ear fertilizer occupied 20%--30%, and the urea used 7-9kg. The number of watering should be increased as much as possible during the flowering stage and the filling stage of rice to prevent stemping and stem pouring in the late stage of filling.
9. Control pests and diseases. Pay attention to the control of aphids and rice planthoppers in the middle and late stages.
Rice mulch film dry tube water-saving cultivation method
Rice mulch straw cultivation, that is, the selection of drought-tolerant rice varieties, covered with plastic film, no water layer is established during the whole growth period, mainly using natural rainfall to maintain soil moisture and efficient water-saving cultivation. In recent years, our county has organized many experiments and demonstrations in towns and towns such as Luji, Zhongxing, Likou and Xinyuan. The area is 700hm2, and the average output is 7821kg. The yield per hectare is 225kg or more, and the benefit per hectare is 2250-3000 yuan. .
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