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Detailed Explanation of Key Points for Rice Field Management in August
I. Apply rice field herbicides at the right time. To eliminate weeds in the rice field, rice field herbicides should be applied at the right time. This saves labor (no need for intercultivation) and money (about 2 yuan per mu for chemicals), and can also resolve the conflict of weeds competing with rice seedlings for fertilizer and light, which restricts the normal growth and development of rice seedlings. The specific method is: 5-7 days after transplanting, use 20 grams of Caodaolong or 60-100 grams of Dingbian per mu, mixed with urea (combined with topdressing), fine sand or dry mud powder 30-40 jin, and broadcast after the dew has dried, maintaining a shallow water layer for 4-5 days. II. Achieve scientific fertilization. Late rice in our province
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How to carry out field management of cotton during the flowering and boll stage? Technical Q&A
1. What is the flowering and boll stage? The stage from flowering to boll opening, generally from early July to early September. There is a farming saying, "flowers see flowers forty-eight," but in fact in China's Yellow River basin it generally takes 50-70 days. When 10% of the cotton plants in the field have flowered, it is called the initial flowering stage; when 50% have flowered, it is called the flowering stage. When 50% of the cotton plants have the first fruiting node of the fourth fruiting branch flowering, it is called the full flowering stage. 2. What are the management principles during the flowering and boll stage? The initial flowering stage is the transition from vegetative growth to reproductive growth, and management should focus on control, preventing
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What are the key field management points for cotton during the flowering and boll-setting stage?
The flowering and boll-setting stage of cotton is the key period for yield formation. In addition to good fertilizer and water management, the following points should also be done well: chemical regulation. Chemical control during the flowering and boll-setting stage can shift more nutrients from vegetative growth to reproductive growth and reduce the shedding of squares and bolls. It is recommended that for cotton fields with strong growth, at the beginning of flowering, spray 2.0-2.5 grams of mepiquat chloride per mu, or 8-10 milliliters of 25% chlormequat. At full flowering, carry out chemical control again according to growth, spraying 2.5-3.0 grams of mepiquat chloride per mu, or 2
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How to carry out field management during the cotton squaring stage?
I. Growth characteristics of the squaring stage The cotton squaring stage refers to the period from squaring to flowering. It generally begins from late May to early June and lasts 25-30 days. About 40 days after cotton emergence, when a triangular young bud up to 3 mm wide appears at the first fruiting node of the first fruiting branch on the cotton plant, this is called squaring. The appearance of the bud marks the transition from predominantly vegetative growth to a period in which vegetative growth and reproductive growth proceed together, but vegetative growth still predominates, mainly expanding the vegetative body. During this period, dry matter accumulation in the cotton plant continuously increases, and carbon-nitrogen metabolism shifts from being dominated by nitrogen metabolism at the seedling stage to being centered on carbon metabolism. If fertilizer and water are insufficient, vegetative growth is inhibited, carbon metabolism is impeded, and the vegetative body is too small, which easily causes premature senescence. If nitrogen supply is excessive, too much sugar is used to synthesize protein, causing excessive vegetative growth and spindling, field closure, and poor ventilation in the lower part, resulting in massive shedding of buds in the middle and lower parts. After bud shedding, the nutrients originally transported to the buds on the middle and lower fruiting branches are transported upward in large amounts, further promoting runaway growth of the cotton plant and forming a vicious cycle, failing to retain early buds, failing to set early bolls, and forming the so-called "tall, big, empty".
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Key Field Management Techniques for Cotton During the Squaring and Flowering-Boll Stages
Management of cotton during the squaring and flowering-boll stages centers on regulating water and fertilizer, combined with measures such as intertillage, chemical regulation, and pruning. The promotion and control techniques should be applied reasonably, combining promotion with control, to achieve strong plants with steady growth, build a high-yield framework, increase boll setting, reduce shedding, and achieve a full set of three bolls. I. Fertilizer and Water Management During the squaring stage, cotton plants are required to grow steadily, so fertilizer application should be steady and skillful, with controlled use of nitrogen fertilizer. Cotton fields with medium to high fertility should not be fertilized further. If soil fertility is poor or the base fertilizer is insufficient, generally apply urea at 5-7 kg per 667 sq m.
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Detailed Explanation of Key Points of New Cotton Field Management Techniques
1. Early hoeing and ridging: Cotton field management emphasizes earliness; the means to promote strong seedlings and early development is early hoeing and ridging, more hoeing and ridging, increasing soil temperature, strengthening roots and seedlings to promote early development. 2. Topdressing: After seedling thinning, topdress 10-15 kg; after squaring, topdress 20-25 kg. 3. Fine pruning: Cotton pruning is the key to increasing cotton yield. Generally, topping is done on July 5-10, and side-shoot topping on July 15-20, following the principle of not waiting for the time when branches have reached the standard, and not waiting for branches when the time has come. Leave the number of fruit branch segments according to variety requirements,
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Key Technical Points for Spring Field Management of Garlic
Water and fertilizer management after garlic turns green again is the key to a bumper garlic harvest. As the weather warms up, water and fertilizer uptake gradually increases after greening. Especially during the bolt-bearing stage and the bulb enlargement stage, garlic has its peak demand for water and fertilizer. Therefore, throughout the entire growth period of garlic, irrigation and topdressing should be carried out in a timely manner according to soil moisture, soil fertility and seedling conditions, with particular emphasis on watering the "three waters" well and applying the "three fertilizers" well. 1. Water the greening water well and apply the greening fertilizer well. By the Spring Equinox, garlic seedlings begin to turn green and grow. Because early spring soil temperatures are low, it is best to water the greening water at noon
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Detailed Explanation of Key Field Management Techniques for Honeysuckle
I. Cultivation and Weeding. Generally 3 to 4 times per year. The 1st time is in spring when buds sprout and new leaves emerge; the 2nd time in June; the 3rd time in July to August; the 4th time in late autumn and early winter. When cultivating, keep it shallow around the plant's root zone and slightly deeper farther away to avoid damaging the roots. After the 4th cultivation and weeding, soil should also be mounded around the plant's root zone to help it overwinter. II. Topdressing. After buds sprout in early spring each year and after each harvest of flower buds, topdressing should be carried out once. In spring, summer and autumn, apply decomposed human and livestock manure water or ammonium sulfate, urea
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Detailed Explanation of Field Management Techniques for Honeysuckle
1. Cultivation and Weeding: After transplanting and establishment, cultivation and weeding should be carried out 3-4 times per year. After 3 years, the vines grow luxuriantly, and the number of weedings can be determined according to the weed situation. 2. Topdressing: In spring and autumn each year, topdressing should be combined with weeding. Both farmyard manure and chemical fertilizer can be used. Apply 30-40 kg of urea per mu, and earth up around the plants to protect the roots.
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Key Field Management Techniques for Cotton After Topping in July
After cotton topping, generally 1 to 2 chemical control applications are made. The first is 3 to 5 days after topping; for fields with about 12,000 plants per 667 sq m, apply 4 to 5 grams of mepiquat chloride in 30 kg of water; after cotton topping in July, the following technical measures should be taken. 1. Scientific chemical control 1. Regulate according to growth vigor After cotton topping, generally 1 to 2 chemical control applications are made. The first is 3 to 5 days after topping; for fields with about 12,000 plants per 667 sq m, apply 4 to 5 grams of mepiquat chloride in 30 kg of water;
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