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How to Control Sorghum Pests? A Detailed Guide to Practical Methods
How to control sorghum pests? Here is a guide: The main sorghum pests are aphids, tobacco cutworms (Spodoptera litura), stem borers, and scarab beetles. Aphids and scarab beetles occur at the seedling stage; tobacco cutworms and stem borers cause damage at the heading stage and dough stage, and can be controlled with pesticides such as chlorpyrifos, BT, and Lvjing. Sorghum is extremely sensitive to organophosphorus pesticides such as trichlorfon, dichlorvos, fenitrothion...
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Main Pests and Diseases in Sorghum Cultivation and Their Control Methods
Which pests and diseases should be mainly controlled when growing sorghum? Please provide guidance. The following pests and diseases should be controlled when growing sorghum: 1. Sorghum smut. Sorghum smut is a common disease on sorghum in Liaoning. It includes head smut, loose smut and covered smut. Symptom identification: head smut shows obvious symptoms after heading. Diseased plants are generally shorter. Before heading, the lower part of the diseased head swells, the husk leaves are tight, and there is a white club-shaped mass inside. After heading, a large amount of black powder is scattered.
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What methods can improve the quality of lettuce when growing it?
How can lettuce quality be improved when growing lettuce? Please give guidance. To improve lettuce quality when growing lettuce, you can refer to the following methods: 1. Environmental requirements: the most suitable growing temperature is 16-22°C during the day and 10-12°C at night, but it can tolerate high temperatures of 30°C and low temperatures of minus 1°C; it likes light...
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What are the control methods for lettuce brown spot disease?
How do you control lettuce brown spot disease? Please explain the control methods. Lettuce brown spot disease mainly damages the leaves. It generally spreads, expands, and infects through seed-borne disease and wind and rain. When plant growth is poor or excessive nitrogen fertilizer causes overly vigorous growth, the occurrence of the disease will worsen. There are two types of symptoms: one is initially water-soaked...
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Heat-Tolerant Cauliflower Cultivation Methods and Key Growing Techniques
How do you grow heat-tolerant cauliflower? Here is an introduction to heat-tolerant cauliflower cultivation methods you can refer to: 1. Variety selection: choose cauliflower varieties with strong growth, good heat tolerance, strong disease resistance and early maturity. 2. Sow at the right time: the sowing period should be determined according to the characteristics of the variety and the climate conditions of each region...
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Cauliflower Cultivation Methods and Pest and Disease Control Techniques
How to grow cauliflower and control pests and diseases? Please note that cauliflower should be transplanted on a cloudy day or on a sunny afternoon, and watered thoroughly after transplanting. Do not transplant too deeply; the soil of the nutrient cup should be level with or slightly above the soil surface, and apply enough water to settle the roots. If there has been a long dry spell and the soil is dry, it is best to fill the furrows with water before transplanting and moisten the bed surface...
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A Detailed Guide to Topdressing Methods and Technical Key Points for Summer Sesame
How should summer sesame be topdressed? Please explain the method. The topdressing method for summer sesame can refer to the following: The flowering and capsule-setting stage is the period of most vigorous growth for sesame and also the peak period of fertilizer demand, when about 70% of the total nutrient uptake occurs, so additional flower fertilizer must be applied. Practice has proven that topdressing with flower fertilizer can increase yield by more than 30%. The topdressing method is soil application of...
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What are the control methods for Chinese cabbage viral disease in summer?
How do you control Chinese cabbage viral disease in summer? Please provide guidance on control methods. Chinese cabbage viral disease in summer generally causes yellowing and crinkling of the heart leaves at the seedling stage, preventing head formation into a ball; at the adult plant stage, the leaves become brittle and hard, crinkled, and the head fails to fill out solidly, with grayish-brown patches forming on the leaves, affecting yield and market quality. High temperature and drought, ...
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Chinese Cabbage Summer Planting Methods and Key Technical Points
How to plant Chinese cabbage in summer? Please provide an introduction to the planting methods. Reference methods for planting Chinese cabbage in summer: For variety selection, choose early-maturing Chinese cabbage varieties that are resistant to high temperatures, tolerant of high humidity, resistant to pests and diseases, and of good quality. It is best to choose varieties that are hairless and whose seedlings removed during thinning can be sold as seedling vegetables, such as Xiafeng 40, Xia...
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What are the summer lettuce planting and management methods?
How should lettuce be managed when planted in summer? Please give guidance. The summer lettuce planting and management methods are as follows: First, pay attention to fertilizer and water management. Because summer temperatures are high, light is intense, ground evaporation is large, and crop transpiration is also high, frequent watering is needed in the early stage after transplanting to keep the soil moist. Entering the rainy season in July to August, after each...
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