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Integrated Pest and Disease Control Methods for Greenhouse Cucumbers in Spring
I. Common Diseases in Spring 1. Downy mildew (1) Occurrence characteristics: persistent (long-term companion), devastating (rapid spread, outbreaks). (2) Occurrence conditions: High humidity: relative humidity above 83% favors disease development, (water droplets or water film on leaf surface), spore germination and invasion. Optimum temperature: 15-20°C. Nutritional status...
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How is the planting time determined for early spring forcing cultivation of cucumbers in small arched tunnels
When is the best time to plant cucumbers for early spring forcing cultivation in small arched tunnels? How can they be helped to recover from transplanting quickly and grow vigorously? The suitable planting period for early-maturing cultivation of cucumbers in plastic-film small arched tunnels is late March. After planting, how quickly the cucumbers recover from transplanting and how well they grow is the result of many environmental factors acting together, among which the most important is how well the root system grows...
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Key Technical Points for Multi-Layer Covered Seedling Raising of Cucumbers in Spring Greenhouses
I. Greenhouse Structure. The best span for the greenhouse is 6-8 m. Put on the greenhouse film in early November. Set up a 1.5 m low tunnel inside the greenhouse and cover it with 3 m wide greenhouse film. At night, cover the low tunnel with a thick straw mat, and add a layer of old greenhouse film over the straw mat, which greatly enhances heat preservation. After seedling raising, cucumbers can still be planted in the greenhouse. II. Nutrient...
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How to prevent and control pests and diseases in early spring eggplant? Key technical points to master
For eggplant seedlings raised in early spring, the main focus is preventing and controlling soil-borne diseases: damping-off, rhizoctonia rot and sclerotinia rot. For seedbed soil disinfection, mix 50 kg of seedbed soil with 20 g of 68% Jinlei water-dispersible granules and 10 ml of 2.5% Shileshi suspension concentrate, sift the soil and mix well, then fill nutrient pots, or spread it over the seedling bed. During the seedling stage, spray 0.1%-0.2% monopotassium phosphate...
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Full Analysis of Key Techniques for Spring Asparagus Seedling Cultivation
Asparagus production generally uses seedling raising followed by transplanting. Centralized seedling raising and transplanting gives a high emergence rate, can save seeds, reduce costs, facilitate centralized management, and helps with pest and disease control and the cultivation of strong seedlings; it can extend the growing period in the planting year and increase the yield in the second year; during cultivation, seedlings can be planted in a directional orientation according to the growth direction of asparagus, which facilitates ridge building, spear harvesting and management operations.
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Spring Wheat Soil Pest Control Methods
Soil pests are mainly white grubs, mole crickets and wireworms, among which wireworms cause the most serious damage to wheat. After the Spring Festival, the peak period of soil pest damage runs from mid-March to early April, when they bite through wheat roots and stems, causing severe gaps and broken rows of seedlings and greatly affecting wheat yield. In recent years, soil pests have become...
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Key Technical Points for Summer Field Management of Spring Corn
At present, spring corn in the Qianxi area has entered the jointing stage, which is the peak period of water and fertilizer demand for corn and also a critical period for yield formation, so summer management of corn should be strengthened. 1. Timely topdressing Corn topdressing should be mainly nitrogen fertilizer, preferably applied in two split applications, namely 20 kg of urea per mu at the large trumpet stage...
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Key points of current management measures for spring-sown corn
1. Adapt to local conditions and select improved varieties. In plain and hilly areas, promote Yedan 13 and Xiyu No. 3, paired with Huayu No. 4, Zhongdan 32, Chenghai No. 1, and Yuanzheng 808; for intercropping in cotton fields, select short-stalked, short-growth-period varieties such as Yedan 22, Yedan 51, and 9362; in suburban areas, where fresh eating is the main purpose, plant Zhongnuo 1...
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Three-step early spring management for asparagus: technical points growers must see
Because asparagus prices have been low for the past two years, most asparagus growers have given up field management or intercropped other crops in asparagus fields, seriously affecting the growth, development and yield of asparagus. In addition, the snow disaster that occurred too early in 2009 froze the plants to death, resulting in less nutrient accumulation and a reduced number and differentiation of scale buds. If effective measures are not taken,...
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4 Key Technical Points for Raising Spring Cabbage Seedlings in Winter
Spring cabbage is a type of vegetable crop with a relatively large planting area in the vegetable-producing regions of the central and southern parts of our province. Spring cabbage production has the characteristics of low input, saving labor and effort, and high yield. Right now, the golden season for raising early spring cabbage seedlings has arrived again. Below, the key technical points for raising spring cabbage seedlings are introduced for everyone's reference: 1. Suitable...
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