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How to Achieve Full Seedling Emergence in a Single Sowing of Cotton? Key Technical Points Explained
1. Variety selection: Choose hybrid varieties with high yield, good quality, great potential and strong stress resistance, such as Hanza 429 and Hanza 301; or use conventional varieties such as Ji 228 and Han 7860. 2. Seed treatment: This includes sunning the seeds before sowing and germination testing. Sun the seeds for 3-5 days before sowing to promote after-ripening, so as to improve the seed germination rate and germination vigor. Do not sun the seeds on concrete or asphalt surfaces. Randomly take 100 or 200 seeds and carry out a germination rate test to determine the sowing rate.
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Key Points for Disinfection and Weed Control in Cotton Seedling Raising
Recently, a farmer from Shuqiao Village, Wuluo Town, Yunmeng County, Hubei Province, called to ask about pesticide use on cotton. Here, in response to two issues farmers care about in cotton seedling raising, I will discuss the precautions for pesticide application for prevention and control. First, does the seedbed soil still need to be disinfected when raising seedlings from coated cotton seed?
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What are the key technical points for cotton management after autumn
In autumn, cotton growth shifts to the late growth stage of boll opening and completing the development of autumn bolls. During this period, the focus should be on nurturing the roots and protecting the leaves, using scientific management methods to promote robust cotton plant growth, prevent premature aging as well as excessive vegetative growth and late maturity and rotten bolls, and strive for a bumper cotton harvest. Specific management
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What are the precautions for tea branch cuttings
Tea seedlings propagated by cuttings can retain the inherent traits and characteristics of the variety, making the variety uniform and the growth neat, and facilitating the construction of high-yield, high-quality tea gardens. The key points to note when taking tea branch cuttings are: 1. Select high-quality, half-year-old, semi-lignified
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Key Points for Winter Management of Tea Cultivation
To make productive tea gardens sprout early and abundantly the following year, with strong and uniform buds, high yield, excellent quality and free from pollution, and to sell at a good price when the market opens early, strengthening winter management is key. As winter arrives, tea plants gradually stop growing and enter dormancy. At this time, tea gardens should carry out tea bush pruning, apply sufficient base fertilizer,
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Key Technical Points for Short-Cutting Propagation of Tea Plants in Autumn
Developing famous premium tea is the inevitable path for Yuyao's tea industry to move toward profitable agriculture, and the effective way to develop early-growing improved varieties at present is short-cutting propagation, which not only preserves the fine characteristics of the mother tree but also shortens the cultivation period, thereby accelerating propagation speed. However, short-cutting
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Detailed Explanation of Key Management Points for the Initial Stage of Winter Tea Seedling Planting
In our province, tea seedlings are mostly planted from November to February of the following year. However, since the start of autumn this year, rainfall has been relatively low, and there is a very high possibility of a continuous drought through autumn, winter and spring. Attention should be paid to managing newly planted tea seedlings well. 1. Drought resistance and seedling protection In the initial stage after tea seedling planting (within one month), the nearby soil should be kept moist. Because the weather has been relatively dry recently, watering once a day is acceptable, and each watering should soak the soil thoroughly. Since the temperature at noon is relatively high now, do not water at noon; water in the afternoon or evening each day instead.
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Detailed Explanation of Key Points of Chemical Control Technology in Soybean Cultivation
Using chemical technology to control cultivation is an emerging technology in agricultural production. Applying chemical control cultivation to soybeans can regulate plant growth and development, help increase flowers and preserve pods, and raise yield. Application of rare earth: Rare earth is also called rare earth micro-fertilizer or rare earth nitrate, and its trade name is Changle Yizhisu.
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Detailed Explanation of Key Technical Points for Soybean Sowing
1. What key techniques should be mastered for soybean sowing? 1. Land selection. Soybean land should not be planted continuously, otherwise it is prone to pests and diseases. After the land is selected, it should be harrowed until broken up, achieving a soft plow layer and a level surface. 2. Seed selection. Varieties suitable for planting in Tiandong include: Beijing bean, Yishan Liula
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Key Points of Shaping and Pruning Techniques for Schisandra chinensis Cultivation
The vines of Schisandra chinensis are soft and cannot stand upright, so they need to attach to a support and twine upward to grow. Therefore, its shaping work includes two tasks: setting up supports and pruning. (I) Setting up supports The growth amount of Schisandra chinensis in the year of planting varies greatly. Under conditions of poor seedling quality and poor management, plant height generally reaches only 50-60 cm, but after stumping pruning, the average growth height in the second year can reach more than 150 cm, and by the third year it can cover the trellis surface. Therefore, supports can generally be set up in the spring of the second year (early to mid-May). Supports can use trellis poles and sun-resistant polyethylene rope. Bamboo poles are often chosen as trellis poles. Bamboo poles are 2.0-2.2 m long, with a top diameter of 1.5-2.0 cm; sun-resistant polyethylene rope with a thickness of 3×15 strands is more suitable, with the upper end fixed to the first iron wire at the top. According to the plant spacing, 1-2 poles per plant. When the plant spacing is less than 50 cm, one pole can be set per plant, placed about 5 cm beside the plant; when greater than 50 cm, two poles per plant, evenly inserted or fixed on both sides of the plant. The part of the bamboo pole entering the soil is best coated with asphalt to extend its service life. The trellis poles are fixed to the three trellis wires with thin iron wire. In a Schisandra chinensis orchard with good seedling quality and management, the plant can reach a growth height of about 2 m in the same year, so supports should be set up in late May of the planting year to facilitate rapid plant growth.</p><p>(II) Shaping</p><p>The purpose of shaping Schisandra chinensis is, through artificial intervention and induction, to make it grow and develop according to the grower's requirements, so as to fully use the trellis space, effectively use light energy, reasonably retain vines, regulate the relationship between vegetative growth and reproductive growth, and cultivate robust and long-lived plants, so that they adapt to climatic conditions and facilitate farming, pest and disease control, pruning, and harvesting operations, thereby achieving the goals of high yield, stable yield, and high quality.</p><p>The tree form commonly used for Schisandra chinensis is a training method with one group or two groups of main vines, that is, each plant retains 1 group or 2 groups of main vines, which are respectively twined on evenly arranged supports. On each support, 1-2 fixed main vines are retained. Lateral vines and fruiting mother branches grow on the main vines. The spacing between each fruiting mother branch is 15-20 cm, evenly distributed. Fruiting branches and vegetative branches grow on the fruiting mother branches, as shown in Figure 5-3. The advantages of this shaping method are that the tree structure is relatively simple, and the shaping and pruning techniques are easy to master; cultivation can be carried out between plants and rows, making weed control convenient; the plant volume and load are small, and the requirements for soil, fertilizer, and water conditions are less strict. However, because the plant is relatively upright, it is prone to forming a situation of strong upper growth and weak lower growth, with the fruiting position moving upward, so control needs to be strengthened.</p><p>Each tree generally needs 3 years to form its tree shape. During the shaping process, special attention should be paid to the selection and retention of main vines. Branches with strong growth vigor, full growth, and plump buds should be selected as main vines. The number of main vines in each group must be strictly controlled. Too many main vines will cause adverse consequences such as weakened tree vigor and chaotic retention of branch groups.</p>
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