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Detailed Explanation of the Three-Drainage and Three-Irrigation Water Management Measures for Rice
1. Three Drainages. First drainage: From the critical tillering stage to the stage when the penultimate leaf tip emerges (20 days before heading), the field should be drained and sun-dried to control the growth of ineffective tillers. For fields with vigorous seedling growth and dark green leaf color, as well as fertile fields and cold-waterlogged fields, heavy sun-drying should be carried out to promote fading of leaf color; for fields with poor seedling growth, as well as lean fields and fields with a low groundwater table, multiple light sun-dryings should be carried out, combining sun-drying with exposure, with the degree judged by the field not sinking underfoot. Second drainage: From 5-7 days before heading to the heading stage, a second drainage should be carried out to improve rice root vigor and enhance the roots' ability to absorb nutrients
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Detailed Explanation of the Three Fertilizations for Rice and Their Application Techniques
Scientific fertilization is one of the important measures for achieving high quality and high yield in rice. However, rice fertilization is a highly technical task, and in practice it must be flexibly managed according to variety characteristics, soil fertility, climatic factors, and cultivation conditions. As is well known, the fertilizer requirements of rice are expressed in the nutritional period, the critical nutritional period, and the period of maximum nutritional efficiency. For example, early rice has a short growth period and relatively low fertilizer demand, so fertilization should be early and concentrated. Middle rice and late rice have longer growth periods, high fertilizer demand, and strong absorption intensity, so the number of topdressings should be increased and the proportion of topdressing raised.
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Detailed Explanation of the Key Points of the "Three Supers" Rice Cultivation Technique
I. Select suitable varieties. Adapt to local conditions and choose high-quality varieties that can mature normally and safely in the local area, with moderate tillering, relatively large panicles, relatively high grain weight, strong stress resistance and disease resistance, upright leaves, a compact plant type, and outstanding high-yield performance. II. Sow early at the right time and sow sparsely to cultivate strong seedlings. (1) Seedling raising preparation. 1. Seedbed preparation. ① Seedbed selection: choose a pollution-free, flat and loose, fertile soil, good water-holding, wind-sheltered and sunny plot as a dedicated seedling field. ② Land preparation and arching: in order to achieve ultra-early sowing, prepare the seedbed soil and set up the frame the previous year, cover with plastic film in early to mid-March to promote thawing and raise soil temperature, shallowly plow the seedbed land 10 cm, and rake it level and fine. Make the bed 10 days before sowing, and dig a 13 cm deep ditch around the seedbed.
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Detailed Explanation of Key Technical Points for Controlling Two Diseases and Three Pests of Rice
The two diseases and three pests of rice refer to rice blast, sheath blight, rice stem borers, rice planthoppers, and the rice red-spotted black spittlebug. They cause great harm to rice and should be given attention for control. Rice blast: Long-term deep water irrigation or excessive drought, and one-sided application of nitrogen fertilizer lead to severe rice blast. There are three susceptible periods in the life of rice, namely the seedling stage, the peak tillering stage, and the heading and full heading stage. Neck blast has the greatest impact on rice yield and should be prevented early at the breaking stage and full heading stage. Rice blast is divided into: seedling blast, leaf blast, node blast, neck blast, and grain blast. Rice blast
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How to identify common easily confused symptoms in rice
I. Several kinds of bacterial wilt 1. Purple sheath blight bacterial wilt. Mostly seen in the late stage of late rice, often occurring in clumps in the field, and also with several plants affected in one hill. The base tissue of the rice is soft-rotted, with dark brown lesions. Peeling open the basal leaf sheath and stem, many black sclerotia smaller than amaranth seeds can be seen. 2. Bacterial foot rot bacterial wilt. Occurs sporadically in the field, generally 1-3 plants affected in one hill; the base of diseased plants shows mouse-gray rot, the root system is sparse and decayed, and peeling open the basal stem reveals it is full of foul water, with no sclerotia. 3. Physiological bacterial wilt. The rice stem shrinks and dries, and when the base of the rice stem is pinched by hand it is shrunken and hollow, making the plant prone to lodging, resembling damage by brown planthopper sclerotia. But there is no insect body at the stem base, no lesions, and no sclerotia in the leaf sheath and basal stalk; it mostly occurs when late rice is near maturity, with patches and blocks of bacterial wilt and wilting.
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Key Techniques for No-Till Cultivation of Autumn Potatoes with Rice Straw Mulch
Autumn potatoes can be harvested in December and marketed as table potatoes, giving good returns. Adopting no-till planting of autumn potatoes with rice straw mulch not only saves labor and time and reduces labor intensity, but also prevents environmental pollution caused by burning rice straw, and can increase yield by more than 10% compared with plowed planting. The key cultivation points are as follows. 1. Select early-maturing, excellent varieties. The effective growth period of autumn potatoes is short, generally 80-90 days. Therefore, seed potatoes should be selected from varieties with early maturity, fast tuber enlargement, and good yield and disease resistance, such as Dongnong 303, Holland 15, etc.
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Six Improvements in No-Till Cultivation of Autumn Potatoes with Rice Straw Mulching
Autumn potatoes can be harvested in December and marketed as vegetable potatoes, giving relatively good returns. Adopting no-till cultivation of autumn potatoes with rice straw mulching not only saves labor and time, reduces labor intensity, and prevents environmental pollution caused by burning rice straw, but also yields about 1500 kg per mu, an increase of more than 10% over plowed and sown crops. Especially in recent years, in conjunction with production demonstrations, agricultural technicians have made some improvements to this technology, making it further mature. Specifically, these are the "six improvements": switch to early-maturing excellent varieties. Effective growth period of autumn potatoes
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Detailed Explanation of High-Yield Cultivation Techniques for Autumn Potatoes with Rice Straw Mulching
Potatoes have the characteristic of preferring cool conditions and fearing heat, making them perfectly suited for no-till planting in idle winter fields. This method requires no plowing or soil covering, saving labor and effort, and is simple to operate. Harvest can be achieved after 3 months, with an average yield of over 1,500 kg per 667 sq m, a 30% increase compared to traditional cultivation methods. At 0.8 yuan per kg, this yields a gross profit of 1,200 yuan. This is a quick and effective project for improving land utilization and increasing farmers' income. 1. Selecting improved varieties and soaking seeds for sprouting: Choose varieties with high quality and yield, a relatively short growth period, relatively high tolerance to high temperature and drought
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Taiwan engineers cultivate sesame nutrient rice via genetic engineering
Researchers at the Graduate Institute of Biotechnology of National Chung Hsing University in Taiwan, China, used genetic engineering technology to improve the nutritional value of rice, successfully breeding sesame nutrient rice. The researchers inserted the gene for sesame 2S albumin into the Tainung 67 rice line, cultivating a new rice variety containing sesame 2S albumin, which they named sesame nutrient rice. Sesame nutrient rice mainly increases the methionine content in rice protein, making the amino acid composition of rice protein better match human needs and enhancing its nutritional value. Generally speaking, plant proteins are lower
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Lily prices stabilize, Taichung City assists farmers through multiple channels
This year's warm climate caused lilies to reach peak production early, before the Spring Festival. To stabilize prices and ease the supply-demand pressure in the domestic market, the Taichung City Government promoted flower marketing through three channels, including holding flower promotion events, exporting, and stepping up calls for people nationwide...
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