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How to control pests and diseases during the cotton sowing and seedling-raising period?
The cotton sowing and seedling-raising period is an important part of cotton production. According to the municipal meteorological observatory forecast, in the spring of 2008 (March to April) precipitation will be normal to slightly low, with 200-250 mm in the Dabie Mountains and 240-290 mm in other areas. The average spring temperature will be close to normal, with large temperature fluctuations and frequent cold air activity; late spring cold spells may occur. This is relatively favorable for the occurrence of cotton spider mites and cotton thrips. Because of the large temperature fluctuations, cotton seedling growth is unfavorable, seedling resistance is reduced, and this is also favorable for the occurrence of cotton seedling diseases.
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Detailed Explanation of Ferret Raising Methods and Technical Points
Before bringing your ferret home, you need to prepare the following things in advance: Food - eating high-quality dry ferret food will make ferrets thrive. If you cannot find dry food specifically for ferrets, you can substitute high-quality kitten food, but cats and ferrets have different nutritional needs, so kitten food or adult cat food cannot fully meet a ferret's dietary requirements. The nutritional composition of dog food is not close to the nutrition ferrets need to absorb. Look at the ingredient analysis on the packaging to see whether it meets the ferret's basic requirements. A ferret's main food should consist of fat
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Detailed Guide to Sowing and Raising Honeysuckle Seedlings (Part Two)
(4) Warm water seed soaking: If for some reason you forgot the sand storage but the sowing period is already near, this method can be used. In early March, soak the seeds in warm water at 35-40°C for 24 hours, remove them and mix with 2-3 times their volume of wet sand, cover with plastic film, and place in a warm spot to germinate. When the seed cracking rate reaches 50%, they can be sown. This method has a 20%-30% lower germination rate than sand storage, and the seedlings emerge unevenly. (5) Land preparation: The nursery plot should be deeply plowed in late autumn or early spring, and sufficient base fertilizer applied. Generally, deep plowing is 50 cm, and per mu apply 6000
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Detailed Explanation of Seedling Raising Methods and Techniques for the Golden Tree Species Robinia pseudoacacia 'Idaho'
Robinia pseudoacacia 'Idaho' (RobiniapseudoacaciaCV.ldaho) is a variety of black locust, a deciduous tree of the legume family Papilionoideae, with a tree height of 5-8 m, a straight trunk, and two full blooming seasons per year. The first is in May, with a flowering period of about 20 d, and the second is in July-August, with a flowering period of 40 d. The flowering period is long, the number of flowers is large, the flowers are large, and the flower shape is beautiful. It is a landscaping tree species introduced to China in recent years. It has vigorous growth, a well-developed root system, and strong stress resistance. It grows noticeably better than black locust on dry mountain land, and
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How to grow black locust seedlings? Detailed explanation of the seedling-raising techniques for the landscaping tree black locust
Black locust, also known as false acacia, is relatively drought-tolerant and can grow normally on dry sunny slopes and sandy land in North China and Northwest China. It is a good tree species in North China and Northwest China for timber, soil and water conservation, windbreak and sand fixation, and "four-side" greening. The seedling-raising techniques for black locust are introduced here: black locust is generally propagated from seed. 1. Seed treatment. Black locust seeds contain varying numbers of hard seeds, which should be treated by gradually increasing the temperature and soaking the seeds multiple times, that is, first soak the seeds in 60°C water, let them cool naturally, leave them for 24 hours, then remove the swollen seeds; for the unswollen
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Lotus Root Terminal Bud Seedling Raising and Transplanting Cultivation Technique
1. Terminal bud seedling raising: The area ratio of seedbed to transplanting paddy field is 1:10. In early to mid-April, apply 1800 kg of decomposed organic fertilizer per mu to the seedbed, deep plow 25 cm, then level it, and build ridges 30 cm high and 25 cm wide around the perimeter. Select plump, thick, pest-free seed lotus roots with intact terminal buds, cut off the terminal buds and gently press them into the seedbed by hand at a density of 1 plant per 8 sq cm, with the bud tips exposed above the bed surface, then fill with 2-3 cm of water to soak into the bed, then build arched frames 1 m high with bamboo strips, cover with plastic film, and press and seal the edges tightly. After 3 days, inside the seedbed
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Sowing and raising prickly ash seedlings requires careful management
For de-oiling treatment, the amount of prickly ash seed used per mu is 7-10 kg. The seed coat of prickly ash is hard and contains oil, so it does not absorb water easily and emergence is relatively difficult. There are many empty seeds, accounting for more than about 50%, so before treatment, water separation must be carried out first, using a strainer in water to remove empty and shriveled seeds, and then the plump seeds are subjected to de-oiling treatment. The de-oiling method is: (1) Prepare the solution. Dissolve 200 g of washing powder in warm water, then stir it evenly into 50 kg of cold water and pour it into a water vat or basin, with the water temperature at 50°C-60
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Key Technical Points for Seedling Raising and Cultivation Management of Three-Cherry Pepper
I. Seedling Raising Three-Cherry Pepper can be raised in cold frames or small arch sheds, with small arch sheds being the main method. The specific practices are as follows. 1. Construction of the small arch shed The small arch shed is generally 1.5-2 m wide and 1 m high, with straw mats added at night depending on the climate. 2. Preparation of culture soil Use 7-8 parts fertile garden soil and 2-3 parts decomposed barnyard manure, mix well; if the soil is clayey, also mix in sandy soil. 3. Sowing time Spring sowing for seedling raising is generally arranged in mid-to-late February, and at the latest should not exceed March 5. Summer sowing is generally in mid-March,
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Key Technical Points for Raising Seedlings of Sweet Peppers and Hot Peppers in Open-Field Cultivation
I. Variety Selection: For this cultivation method, it is advisable to choose varieties with strong growth vigor, disease resistance, and strong heat tolerance. For sweet peppers, such as Jiyan No. 6, Jiyan No. 4, and Zhongjiao No. 4; for hot peppers, such as Jize pepper, Wangdu pepper, etc. II. Seedling Raising Must Be Adopted: For direct seeding, due to extensive management, it causes uneven seedling growth or missing plants and gaps in rows, a short growth period, and a transplanting time more than 40 days later than seedling raising and transplanting, with short plants and poor seedling quality. If a year with a major outbreak of viral disease occurs, the disease spreads, causing severe yield reduction or even total crop loss. When transplanting with the seedling-raising method, the seedlings have already
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Key Techniques for Raising Sweet Pepper and Chili Pepper Seedlings in Summer and Autumn
I. Variety selection. Sweet (hot) pepper varieties such as Zhongjiao No. 6, Zhongjiao No. 13, Zhongjiao No. 16, and Zhongjiao No. 12. II. Seedbed preparation. (1) Nutrient soil mixing: The nutrient soil should have complete nutrients, moderate acidity and alkalinity, be loose and permeable, have strong water-holding capacity, and be free of pathogens, insect eggs, and weed seeds. The mixing ratio is 5 parts field soil to 5 parts decomposed organic fertilizer, and 1-1.5 kg of compound fertilizer can be added per cubic meter of nutrient soil. (2) Soil disinfection: For liquid chemical disinfection, use zineb or carbendazim at 200-400 times dilution. Apply 10 g of the chemical per square meter of bed surface
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