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How to identify and control virus disease in stem lettuce? Aphid control is key
Stem lettuce virus disease can occur throughout the entire growth period. Diseased leaves become mottled, shrunken and distorted, and plants become stunted. It is mainly transmitted by aphids and through sap. This article introduces the symptoms, transmission patterns and four control measures to help you manage it scientifically and reduce yield loss.
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How to prevent and control flower diseases? Learn to make homemade insecticides
Common chemical agents cause varying degrees of phytotoxicity to vegetables and fruits. For example, omethoate should not be used within 30 days before harvest; malathion is phytotoxic to melons and peaches; fenitrothion is phytotoxic to cruciferous plants and should not be used within 15 days before harvesting fruits and vegetables. Dichlorvos should not be used within one week before harvesting fruit trees and vegetables...
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Succulents enter the pot-collecting season, owners in the free-shipping zone please don't be afraid
Foreword: Follow the Encyclopedia · Meet Beauty (WeChat ID: duoroubaike) Main text begins: Thanks to the author [Huang Wei] for the original submission and sharing. Edited and compiled by: Encyclopedia Jun. Location: Wuxi, Jiangsu. As Major Heat approaches, in previous years at this time I was already in extreme panic...
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Apply phosphate fertilizer this way, and crops will resist drought and increase income
Crops absorb phosphorus fastest during the seedling stage, and the seedling stage is also the critical period for phosphorus nutrition. If phosphorus is deficient during the seedling stage, it will affect the later growth of the crop. In our province, spring temperatures are low, soil microbial activity is weak, and the release of soil available phosphorus is low. In addition, low soil temperature weakens the root system's ability to absorb nutrients, making it difficult to meet the crop's needs during the critical period of phosphorus nutrition. ...
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Potash fertilizer helps crops resist diseases
In recent years, increasing the application of potash fertilizer and continuously replenishing the depletion of soil potassium have become one of the effective measures for high and stable crop yields. It is not hard to understand that techniques that can make crops robust and grow well will certainly also improve the stress resistance of crops, including drought resistance, cold resistance, disease resistance and other characteristics. In 1998, China...
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Apply fertilizer skillfully, and crops will suffer fewer pests and diseases
Research and practice have shown that using chemical fertilizers or organic fertilizers to control crop pests and diseases is not only economical, safe and effective, but can also save pesticides, while at the same time having a fertilizing effect and the characteristics of not harming natural enemies and not polluting the environment. It can be said to achieve multiple benefits at once and is well worth promoting in production. Nitrogen fertilizer ① Ammonium bicarbonate...
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Humic acid coated fertilizer: slow-release, efficiency-enhancing, and complete in nutrition
BB fertilizer, whose full name is bulk blended fertilizer, is a compound mixed fertilizer made by blending several granular single fertilizers or compound fertilizers in a certain proportion. Its advantages are: complete nutrients, high concentration, significant yield increase and cost savings, and strong targeting; simple processing, low production cost, and no pollution; flexible formula. Humic acid...
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Correct application methods and precautions for slow-release nitrogen fertilizer
Traditional nitrogen fertilizer management for strong-gluten wheat is generally divided into two applications. The first is a portion of nitrogen fertilizer applied before wheat sowing in conjunction with plowing, accounting for 60%-70% of the total nitrogen application; the second is a topdressing applied from the spring green-up stage to the stem elongation stage of wheat in conjunction with watering, accounting for 30%-40% of the total fertilizer application. Some apply it before wheat overwintering...
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How to Increase Yield by Applying Potassium Fertilizer Reasonably to Chinese Cabbage
How can Chinese cabbage increase yield by applying potassium fertilizer? The yield-increasing effect of applying potassium fertilizer to Chinese cabbage is obvious. Test results show that: under the same conditions of nitrogen and phosphorus fertilizer, adding potassium fertilizer (50% potassium sulfate) at 18 kg/mu to Chinese cabbage gave a yield increase rate as high as 33.2%, with an average increase of 159 kg of Chinese cabbage per kg of potassium sulfate. It enhances disease resistance. Applying potassium fertilizer can...
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No-till autumn potato planting with rice straw mulch saves labor and increases yield
No-till autumn potato planting with rice straw mulch saves labor and increases yield
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