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Why should fertilizer be applied promptly after cotton topping?
After cotton topping, it is the time when the various organs compete most intensely for nutrients. The development of young bolls after flowering requires nutrients, the enlargement of buds and flowering require nutrients, and the elongation of the upper fruiting branches and the growth of new leaves and flower buds require nutrients. If the nutrient supply is insufficient, either the boll set in the middle and lower parts decreases, or there are no bolls in the upper part, or after boll setting the plant prematurely ages, leaves drop, and boll weight decreases, none of which can achieve the goal of high yield. Therefore, supplementation should be carried out promptly by combining root-zone fertilization with foliar spraying, mainly with nitrogen and potassium fertilizers, and appropriately applying phosphorus fertilizer on phosphorus-deficient soil.
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Cotton narrow row spacing should be widened: The second in a series of recommendations from rural advisory services in 2008
Before sowing, the author visited and investigated some cotton regions in Hebei, Shandong, Shanxi and Shaanxi. In most areas the cotton narrow row spacing is too narrow, seriously hindering the normal growth and development of cotton plants, and a planting reform of the population structure is essential. The pressing task is to widen the narrow row spacing. In order to carry out plastic film mulching of cotton, cotton farmers mostly adopt wide-and-narrow row sowing, sowing two rows at once. Most areas use 90 cm wide plastic film, with the narrow row spacing about 45 cm wide. This is not conducive to the normal extension of fruiting branches and flowering and boll setting, and also causes unbalanced growth on both sides of the cotton root system. Very
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What issues should be noted in the export processing of fresh-keeping shiitake mushrooms?
I. Raw material selection In the processing of fresh-keeping shiitake mushrooms, the first thing to note is the freshness of the raw materials, which is an important factor determining the quality of the finished fresh-keeping shiitake mushrooms. The raw materials must be fresh, and the color must be normal; secondly, the mushroom caps must be complete and round in shape, the stems must be intact, and the mushroom bodies must retain the graceful form of natural growth; the mushroom flesh must be thick, the edges of the caps must be neatly incurred, the partial veil unbroken or slightly open, and not fully opened; the cap diameter must be no less than 38 mm; and there must be no pests or diseases, off-odors, or soil impurities. II. Raw material handling and cold storage First,
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What preparations should a mother dog have in place before pregnancy?
Most generally healthy dogs can mate, conceive and give birth on their own without human help, but if a female dog at home becomes pregnant, or if you are arranging a mating for her, the dog owner must take responsibility for the health and safety of both the mother dog and the puppies. Before mating, besides making sure the mother dog has been dewormed first and confirming that all the vaccinations she should have had are indeed fully completed, the mother dog herself should have a strong, healthy body and be free of congenital hereditary diseases or defects.
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Why do pet dogs shed hair? These reasons are something dog owners should understand
First, seasonal shedding. Most dogs shed and change their coat in spring and autumn, such as Shetland Sheepdogs, Chow Chows, Pekingese, and so on. In summer they need less fur, so when the weather turns warm they shed part of their old coat to regulate body temperature. As winter approaches, they shed the coarse hair and replace it with downy fur to get through the cold winter. These are all normal phenomena. Second, if a dog suffers from diseases such as folliculitis or eczema, or is infested with dog lice and fleas, it can also cause heavy shedding. Because of the itching, the dog uses its paws
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What precautions should be taken when processing snake venom? A full breakdown of the key operational points
1. Pay attention to safety when extracting and processing snake venom. To strictly prevent venomous snakes from injuring people, the movements for releasing the snake during and after venom extraction must be quick. When returning a snake that has been milked to its cage, first place the snake's body inside, and when the snake's head approaches the edge of the container opening, let go quickly. If you cannot withdraw your hand in time when releasing the snake, you can easily be bitten by the snake striking back. 2. Venom extraction equipment must be strictly sterilized. 3. If the venomous snake clamps onto the vessel and will not let go, you may gently swing the snake's trunk; if it still will not release its bite, you may gently twist its neck, or use a small stick or your finger to stimulate the snake's cloaca. Never pull hard
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Why can't fresh wheat chaff be fed to livestock? Farmers should pay attention
As soon as wheat is harvested, there is fresh wheat chaff. However, freshly threshed wheat chaff cannot be used directly to feed livestock (cattle, horses, donkeys, mules). Otherwise, if livestock eat untreated fresh wheat chaff, their mouths are easily punctured and inflamed by the wheat awns. If fresh wheat chaff is to be used to feed livestock, it can be soaked in 0.3%-0.5% fresh limewater for 4 hours to alkalize and soften the fresh wheat chaff, then rinsed clean with water before feeding. In this way, it is easy for livestock to digest, and it can increase calcium to make livestock strong and sturdy; the fresh wheat chaff can also be stored under natural conditions for 1 month, and fed after the wheat awns
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How should sows be raised to produce more piglets?
1. Select good gilts to keep. Gilts should be selected from the offspring of high-yielding boars and sows, and attention should also be paid to selecting those sows with many teats. 2. Appropriate age for first mating is very important. Generally, under normal feeding and management conditions, it is suitable for local-breed sows to begin mating at 6 to 7 months of age and a body weight of more than 50 kg, while for exotic breeds it is suitable to begin mating at 9 to 10 months of age and a body weight of more than 75 kg. Sows generally have the strongest reproductive capacity and produce the most piglets from the third to the seventh litter, and the piglets have a large birth weight, strong constitution and strong vitality
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Cotton expansion requires careful consideration, and farmers should make decisions cautiously
1. Cotton fields are growing steadily, and blind expansion is not advisable. In recent years, China's cotton field area has fluctuated greatly, farmers have suffered many losses, and the lessons are very profound. First, price fluctuations are large due to the influence of the international cotton market; second, domestic cotton prices are unstable, making it difficult for farmers to judge; third, the forecasting standards for cotton production area and output are very inconsistent, the reliability of information is poor, and it is difficult for farmers to determine how much cotton is best to plant. In view of past lessons, this year's cotton field area should only see restorative growth, with an increase of 10% being appropriate, and no more than 15% at most. Of course, each region should adapt to local conditions.
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How should the timing and method of cotton chemical growth control be handled?
Although cotton was sown late, the cotton seedlings also developed late. By early June, well-growing cotton fields in the north had already produced 7-8 true leaves, and some had already produced squares. Around June 10, most cotton fields will successively enter the squaring stage. In previous years on June 10, most cotton fields had already produced 3 fruiting branches; this year there will be two fewer fruiting branches, with no pre-dog-days bolls or few pre-dog-days bolls. This is not necessarily a bad thing: it can save the operations of removing early squares and removing the lower 1-2 fruiting branches, and it helps reduce rotten bolls and hard-walled bolls. According to the fixed-plant survey results of Guoxin Cotton Institute: June 10 to July 10 is the main
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