What technical points should be mastered in upland rice cultivation?
The following points should be mastered in upland rice cultivation:
The main results are as follows: (1) the suitable sowing date is selected according to the characteristics of the variety. It is generally the same time as the local early and medium rice.
(2) the land with deep plough layer and good water retention should be selected. It is not suitable to plant upland rice in mountainous areas with large slope and high content of coarse sand in plough layer.
(3) Deep ploughing and finishing, applying sufficient base fertilizer. The plough layer is above 15cm, and the width of the bed is about 1 meter. Per mu strip or hole application of base fertilizer phosphate fertilizer 50 kg, potash fertilizer 10 kg, farm fertilizer 500 kg.
(4) direct seeding or seedling transplanting. Direct seeding can be strip sowing or hole sowing, with a sowing amount of 6-8 kg per mu. After seed soaking and accelerating germination, mix with dry nursery nanny or carbofuran, mix and sow. The strip distance is about 28cm and the acupoint distance is 13 × 25cm. Sow about 5 seeds in each hole. Seedling transplanting adopts dry cultivation and transplanting with soil.
(5) ploughing and topdressing. The seedlings were replenished within 7 days after emergence. After 7 days, 25 kg of ammonium bicarbonate and 25 kg of excess calcium were applied per mu. Within 15 days, the combination of weeding and watching seedlings and then topdressing about 5 kg of urea as tiller fertilizer.
(6) 300mg/L paclobutrazol was sprayed once at jointing stage.
(7) timely prevention and control of diseases, pests and rodents. Pay attention to the prevention of rats and mole crickets in the seedling stage. Pay attention to the prevention of leaf blast and borer at tillering stage. In case of continuous overcast and rain at booting stage, attention should be paid to the prevention and control of sheath blight. Attention should be paid to the prevention of rodents, birds and animals during heading and filling period.
(8) in drought-prone mountainous areas, attention should be paid to prevent extreme drought at the stages of booting, heading and grain filling.
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Cultivation techniques of Upland Rice in Heilongjiang Province
This year, Sun Baoxiang, a farmer from Heli Village, Renmin Town, Anda City, Heilongjiang Province, introduced 65 new varieties of upland rice from the Chinese Academy of Agricultural Sciences in Beijing. Due to the severe drought this year, under the careful cultivation of technicians and farmers, upland rice harvested 2521kg after autumn, with an average yield of 252.1kg per mu. Although the yield of upland rice was not high in the three years of the disaster, the success of planting upland rice has opened up a new way to get rich for the development of upland rice production in the future. First, high-quality varieties to increase efficiency and growth date
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Cultivation techniques of upland rice
Upland rice means that under the condition of dry field, high-quality rice varieties with strong drought tolerance are selected, drought direct seeding is adopted, the whole growth period is dominated by natural rainfall, and in the critical period of growth and development, water should be properly supplied in case of drought, so that rice can grow and develop normally, blossom and bear fruit in a relatively moist soil. The main points of upland rice cultivation techniques are introduced as follows: first, the selection of varieties because the sowing date of upland rice is later than that of rice, so the varieties with early maturity should be considered in variety selection. Our province recently passed the national examination and approval.
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