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Major progress made in project to control soybean yield reduction from continuous and alternating cropping
The reporter learned from relevant departments that the project "Research and Demonstration of Key Technologies for Controlling Soybean Yield Reduction under Continuous and Alternating Cropping," tendered by the Municipal Science and Technology Bureau, has achieved major progress after two years of scientific research. The project was carried out in Yilan and Bayan counties, the two counties with the largest soybean area in Harbin. Through key technology research, soybean varieties resistant to continuous and alternating cropping were selected, including Kenfeng 16, Heinong 48, Kangxian 4, and Hefeng 47. A formula fertilization technique was proposed with 45 kg of nitrogen, 60-67.5 kg of phosphorus, 67.5-75 kg of potassium, and
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What to do about a high egg breakage rate? Sharing effective reduction methods
Broken eggs account for about 6-8% of total egg production, bringing considerable losses to laying hen production. Below are methods to reduce egg breakage. 1. Meet nutritional needs, especially calcium and vitamin D3 levels, while keeping phosphorus at an appropriate level and managing the calcium-to-phosphorus ratio well, generally around 3.4-4.6:1. 2. Increase the frequency of egg collection, avoid eggs colliding with each other, especially during peak laying hours, and handle eggs gently when collecting and moving them. 3. In hot seasons, appropriately increase
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Causes of the 1999 yield reduction of Jin jujube in Ning County and the solutions
Jin jujube cultivation in Ning County, Gansu Province is concentrated in Zaosheng Town. In 1999, the bearing area was 100 hectares, with a total yield of 212.5 tons, which was 22.3 tons less than the average over the years, a reduction of 12.5%, making it a year with relatively poor yield in history. I. Causes of the Jin jujube yield reduction 1. Severe jujube witches' broom disease: According to a survey conducted in Xinzhuang Village, Zaosheng Town, Ning County, before 1997 the rate of diseased plants of jujube witches' broom accounted for 3.98% of the total number of trees, and all diseased trees were fruit-bearing trees. By 1999, the number of trees with jujube witches' broom had risen to 1387, accounting for 10.05% of the total
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What to Do When Corn Is Hit by Disaster and Lodges? Detailed Explanation of Loss-Reduction and Remedial Measures
Natural Disasters Are Hard to Resist: Loss-Reduction Measures for Lodged Corn After Disaster
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This year's new apple crop reduction is already a foregone conclusion, but the price increase will not be too large
With this year's early cold snap in late spring, and the emergence of long-period frosts and hail, the reduction of the new-season apple crop is already confirmed, but specific figures range from 30% to even half; Science Xingnong believes that production will decline somewhat, but...
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Soybeans Growing Too Vigorously Need Timely Growth Control to Avoid Yield Reduction
In recent years, more and more growers have been planting soybeans, and the soybean planting area has also been continuously increasing. However, many farmers are still not very familiar with the problems that may arise during soybean cultivation, so more problems tend to occur. For...
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Peanut bacterial wilt is a soil-borne disease and a major cause of peanut yield reduction.
Peanut bacterial wilt is a common disease in peanut cultivation. Once it strikes, it causes peanut plants to wither and die rapidly, and the incidence rate is high, with up to 50% of plants infected by the pathogen, making it a major factor in peanut yield reduction. For the...
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Tomato hollow fruit causes yield reduction, how to scientifically prevent and control it?
Tomato hollow fruit reduces tomato yield, how to prevent and control tomato hollow fruit
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Pepper fruit rot causes yield reduction, master control methods in time
Pepper fruit rot reduces pepper yield; control methods for pepper fruit rot
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How to handle shrimp feed reduction caused by white feces polluting water quality
White feces polluting water quality causes shrimp feed reduction How to handle white feces in shrimp farming
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