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What causes premature aging in rice? An analysis of pest and disease control methods
Why does rice age prematurely? How to prevent and control premature aging in rice? Please give an introduction. Premature aging in rice refers to the premature decline of leaves during the heading to maturity stage, with leaf color turning brown, the leaf tips showing a dirty white withered state, leaves thin and curved, root growth weakened, and even a few black roots occurring. Rice...
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When is the best time to start rice pest and disease control?
When should rice pest and disease control begin? Please give guidance. For rice pest and disease control, you can refer to the following introduction: 1. Select rice blast-resistant varieties according to local conditions; for early rice and middle rice, try not to plant susceptible varieties such as Jinyou 402, You I 402, Jinyou 974, Zhongyou 974, You I 66, Zhongyou 752, Jinyou 752, 65002, ...
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How to fertilize hybrid rice scientifically?
How to fertilize hybrid rice scientifically? The fertilization principles for hybrid rice should be: organic fertilizer and phosphate fertilizer as base fertilizer, potassium fertilizer mainly as tillering fertilizer, nitrogen fertilizer applied evenly in multiple applications, with special attention to plump panicle and plump grain fertilizer, aiming for large panicles and large grains while ensuring sufficient panicles. (1) Base fertilizer mainly organic fertilizer. According to measurements...
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How should hybrid rice be planted to achieve high yields?
How should hybrid rice be planted to achieve high yields? Technical guidance requested. When planting hybrid rice, pay attention to the following points: 1. Carefully select good seed. The hybrid rice combinations currently being promoted nationwide include double-season early rice, double-season late rice, single-season medium rice early-maturing varieties, single-season medium rice late-maturing varieties, hybrid japonica rice, etc. Different hybrid rice...
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How to fertilize hybrid rice: a detailed explanation of the methods
How to sprout hybrid rice seeds? What methods work well? In recent years, the main method tested and promoted has been a new safe and rapid sprouting method combining "warm water soaking of seeds with an electric blanket for sprouting," which has effectively solved the difficulty of soaking and sprouting seeds of high-quality rice and hybrid early rice, and is well received by farmers. The main advantages of this method: first...
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Causes of High Empty and Filled Grain Rates in Hybrid Rice and Control Methods
What should you do if hybrid rice has many empty and shriveled grains? What methods can be used to control the high rate of empty and shriveled grains in hybrid rice? The following methods can be used for control: 1. Adapt measures to local conditions and select hybrid varieties with good recoverability. First, choose varieties with strong tillering ability, sufficient effective panicles, and high seed-setting rate and 1000-grain weight. Second, choose...
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What are the main rice pests and diseases? Common types at a glance
How to raise rice seedlings well? Methods wanted. Rice seedling-raising techniques: 1: How to determine the seedling-raising period? For insulated dry seedling-raising of rice, start raising seedlings and sowing after the air temperature steadily passes 5°C-6°C (after covering with plastic film or greenhouse film, the temperature rises above 12°C). In Heilongjiang Province, this is generally in mid-to-late April; do not sow in May. The best sowing period is April...
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How to prevent and control damping-off disease when raising rice seedlings
How to prevent and control damping-off disease when raising rice seedlings? Asking for guidance. Although dry-raised rice seedling beds are not prone to seedling rot, they are most susceptible to damping-off disease causing seedling death, with 20%-30% loss in mild cases and over 50% in severe cases. The following measures can effectively prevent and control damping-off disease. 1. Acid adjustment treatment of soil: For neutral and alkaline soil, before sowing...
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Detailed Explanation of Pollution-Free Control Methods for Rice Pests and Diseases
Pollution-free methods for controlling rice pests and diseases: (1) Rice field plowing and water-soaking technique for killing borers: during the peak pupation period of the overwintering generation of rice borers (before March 20 in southern Jiangxi, April 1 in central Jiangxi, and April 10 in northern Jiangxi), plow winter fallow fields and green manure fields, then flood with deep water and soak, so that the borers cannot emerge normally, thereby killing the pupae and borers and reducing the occurrence base...
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What are the methods for controlling rice pests and diseases?
What are good ways to control pests and diseases in rice? Asking for advice. The success or failure of rice pest and disease control plays a vital role in rice yield. For the control of rice pests and diseases, first, select varieties resistant to pests and diseases; second, fertilize reasonably, applying more organic fertilizer and phosphorus and potassium fertilizer; third, use water scientifically, keep the field dry, and during the rainy period pay attention to clearing ditches and draining water...
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