Ducks are raised in cold weather and can maintain a high ambient temperature; they can avoid the loss of energy from ducks caused by water baths; they can avoid the harm of parasites in the body and thus obtain higher feed rewards. However, the ducks are raised and raised and the investment in.......
Pathological characteristics of disease-susceptible plants that occur under the influence of pathogens or adverse environmental conditions, their physiology, tissue structure, and morphology. The lesions that can be directly observed by the naked eye are called macroscopic symptoms; lesions th.......
We conducted a study on the early breeding technology of the southern estuary in late March 1997 and succeeded in conducting research on breeding techniques for the early breeding of the fish species in April 1997 and April 1998 in order to explore A complete set of mature techniques for the b.......
In comparison with the mid-haul inspection requirements, the following requirements are put forward for the maintenance of medium-sized tractors: 1. Engine parts If the engine power and other conditions are normal, due to a longer parking time, nearly a year, the engine should meet the three f.......
First, the construction site has a flat terrain, sufficient light, good water resources, and convenient transportation. For low-lying land, attention should be paid to improving irrigation and drainage conditions of farmland, and drainage ditches should be opened to prevent waterlogging.
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Fruit wine production mainly includes traditional fermentation, soaking, fermentation and soaking.
The traditional fermentation method refers to a method in which the pulp or juice is subjected to natural yeast or artificially cultured yeast, under certain conditions until the sugar is ex.......
The traditional fermentation method refers to a method in which the pulp or juice is subjected to natural yeast or artificially cultured yeast, under certain conditions until the sugar is ex.......
Cucumber is a difficult-to-storage fruit and usually has only 3 to 5 days of shelf life. Coating preservation is a new and simple method of storage. Its practice is to take a certain amount of sucrose fatty acid ester, add quantitative water, heat to 60-80°C, stir and dissolve, and slowly a.......
The hippocampus is a precious Chinese herbal medicine. It has the functions of calming the nerves, strengthening the body, activating the tendons, strengthening the kidney, strengthening the body, reducing inflammation, relieving pain, relieving cough and reducing asthma. It is known as &q.......
First, the site selection and site preparation should be selected 600-1200 meters above sea level, leeward sunny, deep soil, fertile, well-drained sandy soil land cultivation. Apply 3,500 to 4,000 kilograms of manure per acre and 50 kilograms of superphosphate as a base fertilizer per acre, de.......
Turf disease is the most troublesome problem for lawn managers. Once a large area of ​​the lawn has developed, the entire lawn can often be destroyed, causing incalculable damage. Therefore, lawn disease focuses on prevention, and it is very important to use management measures t.......
Prior to use, the new tractor should do the following five aspects of work, which is an important measure to ensure the normal operation of the tractor and prolong its service life. The tightening of the connecting parts of the tractors is factory-tested, but during the repeated transfer proce.......
1. Tender cold injury: Late growth, the development of immature twigs, because the organization is not full, the underdeveloped protective organization, easy to suffer freezing injury and death. For example, branches that are high in apples and pears are often overwhelmed by overgrowth and are.......