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How to Plant Spring Potatoes? Planting Methods and Key Technical Points
There are three methods for early-maturing spring potato cultivation: double-film covering with plastic film plus small arched shed, thick-film small arched shed covering, and flat plastic film mulching. Potatoes cultivated using these methods can be brought to market 10 to 20 days earlier than potatoes grown with conventional open-field cultivation. Selecting good varieties: Regardless of which covering method is used, the original seed of Dongnong 303 or Kexin No. 4 introduced from Northeast China must be used. Self-saved seed must not be used, and local seed that has been self-saved for many years, with aging varieties and seriously degraded seed characteristics, must certainly not be used. About 150 kg of seed is needed per mu. Large potatoes can be cut open for planting, with each seed
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Introduction to the Characteristics of the Spring Potato No. 3 Potato Variety
Breeding institution: Jilin Provincial Institute of Vegetables and Flowers. Approval status: approved by the Jilin Provincial Crop Variety Approval Committee in 1990, and by the National Crop Variety Approval Committee in 1997. Variety registration number: GS05001-1997. Variety source: S. demissum A6 X Kexin No. 3. Characteristics: plant height 80-90 cm, medium branching, stems stout, green, stem wings straight, leaf color light green, flowers white, tubers set in a concentrated manner, tubers round, tuber skin yellow with
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Introduction to the Spring Potato No. 4 potato variety and its cultivation key points
Breeding institution: Jilin Provincial Institute of Vegetables and Flowers. Approval status: approved by the Jilin Provincial Crop Variety Approval Committee in 1993, and by the National Crop Variety Approval Committee in 1997. Variety registration number: GS05002-1997. Variety source: Wensheng No. 4 X Kexin No. 2. Characteristics: the plant is upright and luxuriant, with a plant height of about 90 cm, thick stems, dark green leaves, and purple flowers; it has strong growth vigor, sets many tubers in a concentrated manner, and the tubers are oblate with white skin and white flesh, and the potato skin has a net
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Five points to note when introducing spring potatoes
At present, it is exactly the season for planting potatoes. When transferring and purchasing seed potatoes, be sure to understand in detail the latitude, altitude, climatic conditions and other circumstances of the production area of the potato seed tubers, and correctly choose the production area and variety according to the rules of potato introduction. Specifically, pay attention to the following five aspects: 1. Latitude and altitude. Trials show that introduction from high altitude to low altitude and from high latitude to low latitude is likely to succeed. The reason is that during the growth period of potatoes at high altitude and high latitude, the temperature is relatively low, the seed tubers are less infected by viruses and degenerate slowly, and when introduced to low altitude and low latitude for planting, they generally perform well
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Master the Three Earlies and Three Skills for Spring Potato Planting to Achieve High Returns
Three Earlies: Choose early-maturing varieties. Practice has proven that selecting high-yielding, high-quality, virus-free potato varieties with a growth period within 70 days (from emergence to harvest) is the key to achieving high, stable yields and quality in spring-planted potatoes. Currently ideal varieties include Holland No. 7, Holland No. 15, Zhengshu No. 6, etc. Start sprouting early. Using a sunny cold frame before planting to pre-sprout can make potatoes emerge early and uniformly, with complete and strong seedlings, promoting early plant development and early tuber formation - this is an important yield-increasing measure. The key points of sprouting technique are: before planting
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Key Techniques for Three-Membrane Covered Cultivation of Winter-Spring Potatoes
Three-membrane covered cultivation techniques for winter-spring potatoes (large arch shed, small arch shed, plastic film). Generally, sprouting is promoted and sowing is done in December, and harvest takes place at the end of March the following year. Each mu can yield about 3500-4000 kg of potatoes. It reaches the market one month earlier than early-spring plastic film covered potatoes, and the economic benefits are very significant. The cultivation techniques are as follows: 1. Site selection, shed construction specifications and planting specifications (1) Site selection and shed construction specifications. Choose plots with loose soil, sufficient water sources, and convenient drainage and irrigation to build sheds. Large arch sheds are generally 60 m long
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Key Points for Rice Cultivation Management During Spring Cold Waves
I. Characteristics of Cold Wave Disasters Due to the invasion of cold air, when the temperature drops sharply by more than 10°C within 24 hours, and the minimum temperature within that day is below 5°C, it is called a cold wave. In the middle and lower reaches of the Yangtze River, when strong cold air moves southward and causes the temperature to drop by more than 10°C within 48 hours, it is also called a cold wave. Cold waves generally occur in spring and autumn, with spring being the most common, and spring cold waves mostly occur from March to May. Cold waves mainly cause seed rot, seedling rot and dead seedlings during the rice seedling stage. II. Rice Cultivation Manage
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Key Technical Points for Pest Control and Fertilization of Wheat in Winter and Early Spring
When temperatures are relatively low in winter and early spring, pest control and fertilization in wheat fields should pay attention to the following two points: For pest control, to control wheat aphids, red spiders and other pests, spraying omethoate is more effective than dimethoate. This is because the insecticidal efficacy of dimethoate against pests decreases significantly as the temperature drops, while the efficacy of omethoate is less affected by temperature and can exert normal insecticidal action at temperatures below 15°C. Similar to omethoate is fenvalerate; the toxic efficacy of fenvalerate at 15°C is instead stronger than at 25°C. Fertilization: For topdressing, applying ammonium bicarbonate is better than urea. Ammonium bicarbonate
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Spring management of garlic after overgrowth must start early
For garlic sown in autumn 2006, temperatures from planting through early December remained higher than in previous years, which accelerated the growth of the garlic sprouts. Before winter, the garlic grew to 7-10 leaves (the optimal seedling age for overwintering is 5-7 leaves), showing overgrowth, and had already begun "mother bulb rot," with pest problems occurring. As a result of overly rapid growth, the garlic suffered from poor nutrient accumulation, reduced stress resistance, slow greening after the New Year, severe disease, and reduced high-yield potential. In spring, garlic must complete a series of growth processes including greening, vigorous seedling growth, garlic scape elongation, and bulb enlargement. On the basis of applying sufficient base fertilizer, garlic in spring
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Key Management Techniques for Garlic at the Green-Up Stage in Early Spring
In late February, as the weather gradually warms, the seedlings turn green and begin to grow adventitious roots from the lower part, and the garlic scapes and bulbs begin to differentiate. At this time, ensuring robust seedling growth and accumulating more nutrients for the differentiation of garlic scapes and bulbs is the key to achieving high-quality, high-yield garlic. Years of continuous cropping in major garlic-producing areas have led to a relative deficiency of trace elements (iron, copper, manganese, zinc, magnesium, molybdenum, boron, cobalt, etc.) and calcium in the soil. A lack of trace elements directly results in weak, poorly developed garlic plants. In severe cases, fungi and bacteria can invade, causing various diseases that lead to reduced yields or even total crop failure.
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