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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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Method for Determining the Optimal Insemination Time for Sows by the Hand-Pressure Technique
The inseminator stands at one side of the sow in estrus, facing the sow's back, extends both hands flat, and gently places them on the sow's back, then gradually presses down with force. At this point, if the sow's back suddenly arches up and there is a sense of upward rebound, press down for another 1-2 minutes; if the sow stands still without moving, without continuous grunting or squealing, then this is the optimal time for insemination; if, when pressing down, the sow's limbs move forward and backward and she makes vocalizations, then it is not the optimal time for insemination.
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Introduction to the nationally approved cotton variety Handan 284
The nationally approved cotton Handan 284 was bred by the Handan Agricultural Science Institute of Hebei Province. It passed the approval of the National Crop New Variety Approval Committee in 2001, and in 2002 it was listed by the Ministry of Science and Technology as a variety under the "National Key Science and Technology Promotion Plan". Xinxiang Xincheng Seed Industry holds the development and operation rights for this variety in our country. For this variety under plastic film mulching, sow between April 15 and 20; for open-field planting, sow between April 20 and 30, with 1600 to 1800 plants per mu, and 2000 plants per mu on dry and poor land. 1999 to 2000
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Analysis of the Causes and Handling Methods of Female Mink Eating Their Kits
Every year from June to September is the main stage of growth and development for mink kits. During more than 40 years engaged in mink production, the author has found that some female mink eat their kits. Through investigation, the causes and handling methods of kit-eating are introduced as follows: 1. Poor maternal instinct and vicious habits. Once discovered, the remaining kits should immediately be removed and given to another female mink to nurse. 2. Lack of nutrition and insufficient feed. This is caused by a deficiency of certain nutritional components in the feed, such as insufficient protein content, or by an inadequate amount of feed supplied; sufficient full-price feed should be provided.
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How to Handle Heat Stress in Chickens? Detailed Relief Measures for Summer and Autumn
Effects of Heat Stress on Broiler Chickens 1. Physiological and biochemical changes in broiler chickens under heat stress. When the ambient temperature rises, the body temperature of chickens rises along with the ambient temperature; at this point the heart rate speeds up, blood pressure drops, breathing accelerates and panting occurs, and in severe cases respiratory alkalosis develops. In addition, heat stress can also cause endocrine disorders: the adrenal corticosterone concentration increases significantly in the early stage of heat stress, but gradually declines as the stress period is prolonged; thyroxine secretion decreases, and the decline in its activity leads to a lower metabolic rate. 2. Effects of heat stress on broiler
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How to Process and Handle Stropharia rugosoannulata After Harvest
Stropharia rugosoannulata, also known as the wine cap stropharia, is a domesticated wild mushroom species, and in recent years there has been a trend of gradual expansion. Its mushrooms have a delicate fragrance, crisp and tender flesh, good palatability, high yield, high selling price, and very considerable economic benefits. However, its fresh product has a short storage life and is not easy to store, and if not sold fresh in time, huge losses will be caused. In order to ensure that economic benefits are not lost, the salt-preservation processing and dried-product processing techniques for Stropharia rugosoannulata are now introduced. I. Salt-preservation processing of Stropharia rugosoannulata 1. Harvesting. The fruiting bodies of Stropharia rugosoannulata used for salt-preserved export should be at 6~7 maturity, that is,
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Detailed Explanation of Key Post-Harvest Handling Techniques for Dendrobium Orchids
1. Scientific name: Dendrobium spp. 2. Main characteristics of cut flowers: Very sensitive to ethylene; pollination of the flowers should be avoided, as it stimulates the production of large amounts of ethylene. 3. Harvest maturity stage: Cut when most of the flowers on the inflorescence have opened, with only a small number of flowers at the top of the inflorescence still in the bud stage. 4. Vase life: The vase life in water is about 14 days, and longer in preservative solution. The vase life of Dendrobium varies with the season. 5. Preservative treatment method: Use a preservative
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Detailed Explanation of the Hand-frying Technique for Xinyang Maojian Tea
The hand-frying of Xinyang Maojian is divided into processes such as the raw pot, the cooked pot, baking, and picking and sorting. 1. Raw pot The raw and cooked pots both use a "Niu Si pot" with a diameter of 82.5 cm, mounted at a 30-35 degree slant on a stove platform more than 33 cm high, with the two pots built adjoining each other. The raw pot is for fixing (de-enzyming) and initial rolling. Before frying tea, the pot surface must be polished and wiped clean to keep the pot surface clean and smooth. The pot temperature is relatively high, with different requirements for fresh leaves of each grade: 160-180°C for high-grade fresh leaves; 180-200°C for medium- and low-grade fresh leaves. Each pot takes
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How to handle a sick pig that shows no improvement after multiple drug injections
In daily veterinary practice, it is common to encounter sick pigs that have been given multiple symptomatic injections of penicillin, streptomycin, analgin and other drugs without any improvement. We suggest handling the situation as follows: Basic method: calculated per 30 kg of pig body weight per dose (the same below), dexamethasone sodium phosphate 6 ml, nikethamide 2 ampoules, kanamycin hydrochloride 10 ml, each injected intramuscularly separately. If coughing and gasping do not stop, use the basic formula plus 3% ephedrine 2 mg injected intramuscularly. After 10 minutes, inject sulfadiazine sodium 0.5 mg intramuscularly
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