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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 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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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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Key Field Management Techniques for Lilies After Planting
After planting, for greenhouses, the main tasks are controlling light, temperature and humidity conditions, regulating soil moisture, and preventing and controlling pests and diseases. ① Temperature management: within 3-4 weeks after planting, soil temperature should be kept at 12-13°C; above 15°C is unfavorable for root development. From emergence to flowering, the indoor temperature should be raised, to 20-25°C during the day and around 15°C at night. ② Water management: keep the soil moist, not too dry, not too wet, not alternating between dry and wet; water frequently but lightly. ③ Fertilizer management: multi-element compound fertilizer is preferable. 1
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Detailed Explanation of Key Technical Points for Field Cultivation and Management of Lilies
When carrying out field cultivation, the following aspects of work should be done well. (1) Select good varieties according to the cultivation purpose and local climate conditions, soil, and other factors. (2) Choose a suitable plot: select sloping land with high and dry terrain (with a gentle slope) or flat land, with loose, deep soil and medium organic matter content, and the plot should have good drainage capacity. For plots prone to drought, it is better to have a certain irrigation capacity. In addition, lilies are unsuitable for continuous cropping; a plot where lilies have been grown can only be planted with lilies again after 3-5 years, and the previous crop is best
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What are the main measures for late-stage field management of cotton?
Cotton generally begins to open its bolls in late August and early September (from End of Heat to White Dew), and cotton management enters the late stage. The main tasks of late-stage field management of cotton are: preserving roots, preserving leaves, promoting early maturity, and preventing premature aging, so as to achieve high yield and quality and a bumper harvest. 1. Timely watering to prevent autumn drought: If soil moisture is insufficient in the late growth period of cotton, it will affect the absorption function of the root system, delay boll development, prevent fibers and seeds from maturing normally, and prevent soil nutrients from being used effectively. Therefore, if autumn drought occurs, water timely
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Field management of wheat-intercropped cotton must be followed up in time
1. Growth and development characteristics of wheat-intercropped cotton. For wheat-intercropped cotton, the cotton seedlings are weak after wheat harvest, grow and develop slowly, bud and flower late, are prone to excessive vegetative growth in the mid-season, and tend to mature late in the late season; moreover, this year the cotton seedling stage was affected by rainfall and low temperatures, and seedling diseases were relatively severe. Field management after wheat harvest must be based on the word "early" and vigorously grasp the word "quick" to promote rapid growth and development of the cotton seedlings so as to make up for insufficient growth during the seedling stage. 2. Quickly destroy the wheat stubble and loosen the soil
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Hubei: Current Cotton Growth Status and Field Management Recommendations
According to the survey results of August 5, most cotton fields in our city have currently entered the flowering and boll-setting stage. The average density of cotton fields in our city is 1266 plants/mu. The average plant height is 90.2 cm, the number of fruit branch layers is 15.8, the number of empty branches is 0.1, the total number of fruit nodes is 51.1, with 5.1 large bolls, 2.3 small bolls, 1.4 flowers, 31.6 buds, and 11 abscised buds and bolls, with a bud and boll abscission rate of 21.6%. In view of the current situation, field management should currently focus on the following points: 1. Focus on per-unit yield, grasp the "two striving" This year's cotton growth is relatively
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Cultivation Techniques and Field Management Methods for Digupi (Chinese Wolfberry Root Bark)
Cultivation Techniques for Digupi
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What are the field management measures for lily cultivation?
1. Intertillage and weeding: In the second year after planting, carry out intertillage and weeding 3 times. The first time is after full sprouting in spring, the second time is before flowering in May, and the third time is after flowering in July. The first intertillage should be shallow, and the second and third should be deep. After the rows close, no more intertillage is done, and large weeds are pulled out by hand. 2. Topdressing: Generally topdress 3 times. The first time is around January, applying 2000 kg of decomposed stable manure, 50 kg of cake fertilizer, and 100 kg of plant ash per mu; the second time is when the seedlings are about 10 cm tall, applying 1500 kg of decomposed human and livestock manure
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