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Technical Specification for Rice Seedling-Throwing Cultivation with Plastic Trays and Dry Raising
Variety selection According to different cropping rotations, variety characteristics and the safe full-heading stage, select high-quality, high-yield, stable-yield varieties with strong tillering ability and good stress resistance that are suitable for local planting, either balanced panicle-grain type or large-panicle type. In the riverside and southern Jiangsu areas, early-maturing late japonica rice varieties are mainly used, supplemented
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Three key stages to grasp in rice film seedling raising
Based on many years of practical experience, I believe that three key stages should be noted in the technique of raising rice seedlings under film: the closed stage, the hardening stage and the film-removal stage. The first stage: the closed stage, that is, from sowing to the one-leaf-one-heart stage. During this period the film must be tightly closed to create
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Why should rice seeds be sun-dried before sowing?
Sun-drying rice seeds before sowing can effectively improve the germination rate and germination vigor of the seeds. The main reasons are: 1. Sun-drying seeds can promote after-ripening of the seeds and increase enzyme activity. After rice seeds are harvested, although they are sun-dried, winnowed and cleaned before being stored, because maturity and dryness vary, the air humidity and temperature during storage will also change. If the seeds absorb moisture, respiration becomes vigorous, and nutrients inside the seeds are consumed heavily, which often leads to weakened germination ability and reduced germination vigor. Sun-drying the seeds can enhance the permeability of the seed coat, so that they absorb water evenly during soaking and enzyme activity is increased.
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Detailed Explanation of Key Points of Rice Dry Seedbed Sparse Planting Cultivation Technology
The rice dry seedbed sparse planting cultivation technology is based on the characteristics required for high yield, applying comprehensive cultivation technical measures to promote rice in its growth and development process to achieve strong seedlings, healthy plants, long panicles, uniform panicles, many grains, and plump grains, finally achieving high yield, low consumption, and high efficiency, and achieving high yield.
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Detailed Explanation of Key Points for Rice Viral Disease Prevention and Control Technology
The occurrence of rice viral diseases is characterized by outbreaks, intermittency and migration. The severity of rice viral disease occurrence is closely related to the farming system, the population and migration patterns of transmission vectors, climatic conditions and cultivation management measures. Control should implement the principle of prevention first, integrated control
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What are the pitfalls to watch out for when introducing rice varieties?
Rice has entered the sowing season. In recent years, farmers introducing varieties on their own initiative has become fairly common, but few of the introduced varieties perform well in overall traits, and some have even caused severe yield reductions. In fact, the seeds farmers need can be purchased from their local agriculture department and seed department. If
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Detailed Explanation of the Key Points of Rice Dry Seedbed Seedling Cultivation Technology
In recent years, the performance of dry seedbed seedling cultivation and field transplanting by our city's agricultural technology extension center in various townships shows that the rice dry seedbed seedling cultivation technology has the effects of saving labor, saving field, saving water, saving expenditure, being easy to operate, and significantly increasing yield. The main reason for the yield increase is making full use
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How to reasonably determine nitrogen fertilizer application rates in precision quantitative rice cultivation
The quantification of nitrogen needs to consider the fertilizer requirements of high-yield rice, the pattern of soil nitrogen supply, fertilizer characteristics and the current-season utilization rate, as well as various changes during the growth period, and includes two parts: total nitrogen quantification and nitrogen fertilizer application methods. Determination of total nitrogen amount: obtained through soil testing and fertilizer recommendation trials
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Detailed Explanation of Cultivation Points for the Late Growth Stage of Rice
Pest and disease control: Diseases: The main disease requiring attention in the late growth stage of rice is rice blast. After rice heading, seize the opportunity to apply pesticide 2---3 times, with an interval of about 7 days. Apply about 100 grams of tricyclazole wettable powder per mu, mixed with 30 kg of water for foliar spraying.
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Five preventive management measures for the late growth stage of rice
When rice enters the late reproductive stage, it is a critical time for yield formation, and the following five preventive measures must be carried out well. 1. Prevent fertilizer deficiency. For fields where no nitrogen fertilizer was applied at the mid stage and where fertilizer deficiency and premature aging appear at the late stage, 2-3 kg of urea per mu can be applied at the booting stage as a booting fertilizer. For those growing normally and robustly,
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