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Detailed Explanation of Key Technical Points for Greenhouse Tea Plant Cultivation and Management
Covering tea gardens with plastic greenhouses is an important cultivation and management technique for advancing the harvest time of famous premium tea, improving quality, and significantly increasing economic benefits. The main function of the greenhouse is to preserve heat and prevent frost and freezing damage. Generally, the film is erected and covered from late October to late December of the previous year before frost arrives, and can be uncovered in early to mid-April of the following year. Greenhouse environment management: the temperature most suitable for tea growth inside the greenhouse is 20°C-25°C, with the maximum not exceeding 30°C and the minimum not falling below 8°C. On sunny days at noon, the temperature inside the greenhouse may exceed 30°C, and at this time the door must be opened
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Key technical points for winter management of tea plants to help tea gardens overwinter safely
1. Carry out the garden-closing work by spraying the whole tea plant with 0.4-0.5 degrees Baumé lime-sulfur mixture. 2. Apply 150 kg of decomposed cake fertilizer in holes or furrows, or 100 kg of special compound fertilizer for tea, and finish applying the base fertilizer by November. 3. In conjunction with fertilization, clear weeds inside and around the garden to reduce overwintering habitats for pests. 4. For expanding tea gardens, select good varieties, deeply plow furrows in the tea garden, apply base fertilizer deeply, adopt double-row single-plant planting, low-hole cultivation, and low-position pruning, and strive to complete planting in this winter and next spring.
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What are the key technical points for cotton boll stage management?
The period from flowering to boll maturity and boll opening in cotton is called the flowering and boll stage. In general cotton fields, from early July to early September, cotton growth during the flowering and boll stage still involves both vegetative growth and reproductive growth proceeding simultaneously, but gradually shifts from vegetative growth dominance to reproductive growth as the main focus. The main direction of management in this period is to increase the setting of three bolls. Its management techniques mainly include five aspects. 1. Heavily apply flowering and boll fertilizer, and supplement with top-covering fertilizer. The fertilization time is at full flowering when 2 mature bolls have set on the lower part of the cotton plant. Generally, apply 10-15 kg of standard nitrogen per mu. If soil fertility is poor, cotton plant growth is weak, and soil
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Key Technical Points for Cultivation and Management of Cotton under Hose Drip Irrigation
As the crop area in Jimsar County has increased year by year, water resources have become scarce, and the cost of cotton has risen, the comparative benefit of cotton has declined year by year. For this reason, we introduced and promoted the technique of cotton drip irrigation under film at normal pressure (hose). I. Main indicators 1. Yield: 100-130 kg of lint cotton per 667 sq m. Yield composition: 13,000-15,000 harvested plants per 667 sq m, 5-6 bolls per plant, 5 g per boll, lint percentage 33%-35%. 2. Fertilizer and water
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What are the key technical points for late-stage cotton management?
As autumn begins, cotton growth enters the late reproductive stage, dominated by boll opening and the completion of autumn boll development. This period centers on nourishing the roots and preserving the leaves, using scientific management methods to promote vigorous cotton plant growth, prevent premature senescence as well as excessive vegetative growth with late maturity and rotten bolls, and strive for a bumper cotton harvest. The specific management methods are as follows. 1. Drought resistance and waterlogging prevention After the Beginning of Autumn, drought is often severe. From mid-August to mid-September, the soil moisture content at 0-40 cm must be maintained above 55% of field capacity. Only under sufficient moisture conditions can cotton
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Q&A on Key Technical Points for Cotton Late-Stage Management
1. When does cotton late-stage management begin? Answer: Cotton field management after the end of the flowering and boll-setting stage is called cotton late-stage management. In China's Yellow River basin it generally begins in early September, and in the Yangtze River basin it generally begins in late August. 2. What is the main task of cotton late-stage management? Answer: The boll-opening stage is the key period determining cotton fiber quality, so first of all the focus should be on preserving bolls, increasing boll weight and increasing lint percentage; secondly, the focus should be on protecting roots, preserving leaves, promoting early maturity and preventing premature senescence; thirdly, the contradiction must be resolved between a bumper harvest and rotten bolls from rainy weather, excessive vegetative growth and late maturity, and a high proportion of stiff-boll cotton.
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Technical Guidance on Cotton Management During the Flowering and Boll-setting Stage
The flowering and boll-setting stage of cotton is a critical period when vegetative growth and reproductive growth proceed together. During this stage, the plant gradually shifts from being dominated by vegetative growth to being dominated by reproductive growth. The plant grows vigorously with a large daily growth increment. It is the peak period of fertilizer and water demand in the plant's entire life cycle, and also the key period for forming economic yield. Timely and meticulous management is essential, adapted to local conditions and to the condition of the seedlings. Attention must be paid to pest and disease control, chemical regulation, pruning, and intertillage loosening of the soil, while at the same time rationally and scientifically formulating fertilizer and irrigating promptly and in appropriate amounts, so that individual plants grow steadily, the plant architecture and field population structure are reasonable, ventilation and light penetration are good,
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Key Points of Current Technical Management Measures for Cotton
I. Do a good job in seedbed stage management 1. Ventilate in a timely manner to reduce humidity, thin the seedlings and remove weeds. After the cotyledons of the cotton seedlings flatten and turn green, ventilate slightly in a timely manner for 1-2 days to reduce humidity; take advantage of sunny and warm weather to sun the boards and reduce humidity, thin the seedlings and remove weeds. 2. Do a good job in chemical regulation of cotton seedlings. When the cotton seedlings form a heart and begin to produce true leaves, chemical regulation should be carried out in a timely manner. For each standard seedbed per mu of field, use 1 bag of the seedbed-specific biochemical preparation Cu Zhuang Su, mix with 2 kg of water, and spray evenly to prevent the cotton seedlings from shooting up and forming leggy seedlings. 3. Scientifically regulate temperature. Pay attention to two points in bed temperature regulation: first, persist in
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Ten early technical measures for spring tea management
Good spring tea management is the key to ensuring a bumper tea harvest throughout the year. Practice has proven that applying the "ten early" techniques in spring tea management gives very good results. 1. Apply base fertilizer early. Apply base fertilizer early after the tea season ends to replenish the nutrients consumed by that year's tea growth, so that the tea plants have sufficient nutrient reserves, while also strengthening the tea plants' activity in autumn and winter, enhancing their photosynthetic capacity and improving their cold resistance through the winter, which helps the next year's spring tea sprout early and grow vigorously. Base fertilizer should be applied before the autumn equinox, when the root rapid-growth period arrives, and no later than the end of September. Organic fertilizer should be the main type; for mature
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Key Technical Points for Autumn and Winter Management of Mulberry Trees, Tea Trees and Fruit Trees
I. Winter Management of Mulberry Fields Doing a good job of winter management of mulberry fields lays a solid foundation for the growth of mulberry trees in the coming year, and is also an important measure for improving the yield and quality of mulberry fields. 1. Clearing the field: After the mulberry leaves fall, collect all the residual leaves and weeds in the mulberry field to make compost or burn them, so as to eliminate pathogenic bacteria and overwintering pests hidden in the mulberry leaves and weeds. 2. Bundling: Before winter plowing, bundle the mulberry branches together with rice straw, which not only facilitates winter plowing and fertilizing, but also lures pests to hide in the bundled straw to overwinter, making it easier to capture and kill them.
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