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Detailed Explanation of Key Techniques for Full Seedling Emergence in a Single Sowing of Mulched Cotton
Baicheng City is located in the western part of Jilin Province and has a continental monsoon climate. To grow cotton there, the contradiction between the long cotton growth period and insufficient heat resources must be resolved. To achieve a bumper cotton harvest, the first essential step is to obtain full seedling emergence from a single sowing. In production, efforts must be made in adequate soil moisture, superior seed, fine sowing, film protection, and healthy seedlings, and the "five passes" must be strictly observed. I. Land Preparation and Fertilization Pass 1. Soil selection: Cotton is a heat-loving crop. It is best to choose flat sandy (loamy) land for planting, with the previous crop preferably gramineous crops, soybean stubble, etc., which
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How to Grow Single-Clove Garlic? Detailed Explanation of Key Points in Single-Clove Garlic Cultivation Techniques
In recent years, single-clove garlic has become highly favored by consumers for its round, neat appearance and convenience in eating, and its market price is very good. However, in normal garlic cultivation, the goal is usually to minimize the occurrence of single-clove garlic, so it is difficult to produce high-quality, high-yield single-clove garlic. Vegetable expert Chang Wei explains that production practice has proven that late sowing is the main cause of single-clove garlic formation. In addition, early-maturing varieties, small cloves, poor soil, insufficient base fertilizer, drought and water shortage, severe weed infestation, excessive density, too few leaves, and failure to meet the temperature and light conditions required for clove bud differentiation can all lead to
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Introduction to the hybrid single-season rice variety II You 93
Characteristics: This variety is a three-line late-maturing hybrid mid-season rice. In 2004, it participated in the Hunan Province super rice regional trial. The whole growth period is 136.2 days, 6 days less than the control Liangyou Peijiu and 2 days less than Shanyou 63. Plant height is about 115 cm, with a plant type that is moderately compact, and strong fertilizer tolerance and lodging resistance. Tillering ability is medium, and it has good luxuriance, uniform heading, and good color retention at the late stage. Generally, there are 164,300 effective panicles per mu, 172.3 total grains per panicle, about 80% seed setting rate, and 1,000-grain weight of 27.6 g. Cultivation points: in
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Introduction to the Hybrid Single-Season Rice Variety Xianghuayou No. 7
Characteristics: This variety is a three-line hybrid medium-late maturing medium rice. Grown as medium rice, its whole growth period is about 139 days, 5 days less than II You 58. Plant height is 110 cm, with a moderately loose plant type and relatively strong lodging resistance. Tillering ability is relatively strong, with 177,000 effective panicles per mu, 142.5 grains per panicle, a seed-setting rate above 80%, and a 1000-grain weight of 30.7 g. The grain is long in shape, and the rice quality is relatively good; at maturity the grains are plumply filled and the color fades well. Cultivation points: When grown as medium rice in Hunan Province, sowing is generally done around April 15. Sow sparsely to raise strong seedlings; in the seedling bed
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Detailed Explanation of Key Cultivation Techniques for Single-Stem Wheat After Cotton Stubble
With the adjustment of the planting industry structure, the area of wheat-cotton double cropping has developed rapidly across various regions, achieving both expansion and increase in grain and cotton production. However, some problems have also been exposed, namely that the suitable sowing period for wheat coincides with the cotton harvesting period. Using conventional sowing methods has brought many adverse effects on wheat growth and development, such as small seedlings, weak seedlings, susceptibility to freezing, poor root development, fewer productive ears, and low and unstable yields. If timely stubble clearing is adopted and the single-stem wheat cultivation method is applied around Frost's Descent, this contradiction can be well resolved. The main cultivation techniques are as follows: 1. Timely pulling of cotton stalks and timely stubble clearing
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Detailed Explanation of Super-High-Yield Cultivation Techniques for Single-Season Rice in Northern China
(1) Use plastic film and special non-woven fabric to cover dry-raised rice seedlings, with the seeding rate controlled within 200 grams per sq m. (2) Transplanting spacing in the paddy field: 30 cm x 16.7 cm to 20.0 cm sparse planting, or (40 cm + 20 cm) x 16.7 cm wide-ridge double-row sparse planting. (3) Apply 60-70 kg of standard nitrogen per mu, 10 kg of diammonium phosphate, and 10 kg of potassium sulfate. (4) Intermittent water-saving irrigation in the paddy field alternating shallow water, wet, and dry conditions. (5
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How to control pests and weeds in single-season rice seedling fields? Here are the control recommendations
I. Weed control in seedling fields 1. Weed control before plowing: 7-10 days before plowing the seedling bed, use 41% glyphosate 150 ml/mu or 10% glyphosate 1000 ml/mu diluted in 30 kg of water for fine spraying to control old weeds before sowing. 2. Weed control after sowing: ① 1-2 days after sowing germinated seeds, use 17.2% bensulfuron-methyl and piperophos wettable powder (Youhebao) 210 g/mu diluted in 45 kg of water for fine spraying. ② At the needle-standing stage of seedlings, use 40% bensulfuron-methyl and pretilachlor wettable
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Cotton bud-yellow 396a: a single recessive photoperiod-temperature sensitive genic male sterile line
1 Current status and problems of heterosis breeding and hybrid seed production 1.1 Hybrid seed production by manual or chemical emasculation and pollination This method is technically simple; any two varieties can serve as parents for each other, and hybridisation is achieved simply by emasculating at flowering and pollinating by hand. Chemical emasculation can also be used for hybrid seed production. Advantages: existing variety resources are easily exploited fully, the matching of hybrids is highly flexible, combinations can be configured freely, and some combinations can use the F2. Disadvantages: high labour intensity, high labour demand, high cost, and the heterosis of the F2 is often reduced compared with the F1. 1.2 Cyto
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What level does a cotton single boll weight of 8 grams represent?
1. Large bolls: The average single boll weight of this variety is 8 grams, with the largest single boll weighing 9.2 grams. Lint percentage is 41.5%, and seed index is 11.1 grams. 2. Good emergence: The seeding rate for this variety is 400-500 grams per mu, with strong germination vigor, good emergence, and uniform, vigorous seedlings. 3. Strong growth: The growth period of this variety is about 128 days, with medium-sized leaves and good ventilation and light penetration. Plant height is 105 cm, the cotton plants are clean, and the fruiting branches have strong outward extension ability. Cotton bolls are evenly distributed on the lower, middle, and upper parts of the plant and on the inner and outer periphery, and boll weight is consistent. 4. Good resistance: This variety is highly resistant to cotton
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Pests and Diseases Increase in Single-Season Rice, Do Not Relax Control Efforts
This year, the single-season rice planting area in our province is 6.0143 million mu. Currently, most single-season rice has entered the late tillering stage to the young panicle differentiation stage. According to recent incomplete statistics from various regions, various pests and diseases have occurred in 2.5 million mu of single-season rice fields, an increase of 40% compared to the same period last year, including 1 million mu of rice planthopper, 500,000 mu of rice leaf roller, 400,000 mu of stem borer, 400,000 mu of sheath blight, and 80,000 mu of rice blast. 1. Rice planthopper: This year, the occurrence of rice planthopper is severe, and the large amount of foreign insect sources migrating in is rare in past years.
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