-
Rice cultivation in cold regions requires water-saving irrigation, selection of improved varieties, making the most of accumulated temperature, and growing strong seedlings
Heilongjiang Province is located in a high-cold region, where heat and water resources are relatively scarce, annual atmospheric precipitation is extremely unevenly distributed, spring is windy with little rain, and drought is quite severe. The author discusses how to achieve water-saving, high-quality, and high-yield rice cultivation in cold regions. 1. Selecting excellent varieties is the prerequisite for ensuring high-quality and high-yield rice. The varieties that rice farmers plant directly affect the quality and yield of rice. Therefore, in production, varieties with a suitable maturity period, excellent quality, stable and high yield, and strong stress resistance should be selected. First, select varieties that have passed national approval, been named, and promoted, which can ensure relatively stable rice traits, steady and rising yields, and safe and reliable use; second, introduce varieties with suitable maturity periods according to different accumulated temperature zones, and never introduce varieties across zones; third, pay attention to seed quality, and select first-grade improved seeds with a purity above 98%, a germination rate above 90%, and a moisture content no higher than 14% for production use; fourth, purchase seeds from nationally certified seed companies, research institutes, and agricultural colleges, and eliminate blind planting; fifth, in actual planting, unify varieties as much as possible, plant in contiguous fields, form scale, and achieve industrialized planting.
-
How to fertilize cotton during the seedling stage? Master the right method to grow strong seedlings
During cotton sowing, seedling raising and transplanting, fertilization should be done correctly to ensure full, even and strong seedlings. Seedbed base fertilizer should be refined and moderate in amount. Cotton plants are small during the seedling stage and need few nutrients, so the amount of seedbed base fertilizer should not be too much, with emphasis on being refined and moderate. Organic fertilizer must be fully decomposed, and weed roots and stems should be removed. If bio-organic fertilizer is used, the amount per 10 sq m of seedbed should not exceed 5 kg, and the amount of compound fertilizer should not exceed 1 kg. If decomposed human manure and urine are used, apply them 20 days in advance, then plow and mix thoroughly with the soil. Urea cannot be used as seedbed base
-
Shallow water warming for rice to promote tillering, fertilization with "two preventions" to grow strong seedlings
Due to the impact of unfavorable weather conditions such as low temperatures, frequent rain and insufficient sunlight, rice has been slow to turn green, with yellow leaves, few tillers and delayed growth. For this reason, rice expert Xu Yirong, after an on-site inspection in the Heilongjiang reclamation area, proposed countermeasures such as shallow water warming to promote tillering, fertilization with "two preventions" to grow strong seedlings, and fitness-based disease prevention. First, water layer management must be done well: deep water is a heat-preservation measure, shallow water is a warming measure, and not establishing a water layer is a cooling measure. For plots with deep water formed by rainfall, drainage must be carried out promptly to raise temperature, promote root growth and promote
-
Yantang Strong Antibacterial Star is a compound antibacterial drug
Yantang Strong Antibacterial Star is a compound antibacterial drug developed and produced by Guangdong Yantang Veterinary Drug Co., Ltd. (Tel: 020-87633374). Its generic name is Compound Gentamicin-Micronomicin Sulfate Injection, and its main ingredients are gentamicin-micronomicin, trimethoprim, lincomycin, and analgin. Functions and indications: for swine streptococcosis, edema disease, piglet yellow and white scour, pig diarrhea with persistent high fever, loss of appetite, oral ulceration, foot rot, and other conditions, as well as mastitis and endometritis in pigs and cattle, and
-
What are the key points of cotton seedbed management? Do these well and the seedlings will be stronger
This year the weather during cotton sowing was good, with plenty of sunlight. At present, the large-area cotton has full stands and has entered the seedbed management stage. The following points should be grasped in detail: 1. After full emergence, spray each 10 sq m of seedbed with 3 ml of "Zaofa No. 1" plus 0.6 kg of water; spray once more after 8-10 days to prevent leggy seedlings and cultivate large, strong seedlings. 2. After full emergence, choose sunny weather to sun the bed and disperse moisture, and at the same time spray chemicals to prevent disease. 3. For the few dry, stiff cotton seedlings lacking water and fertilizer, promptly supplement fertilizer and water. Before 9 a.m., ventilate first and then remove the film to supplement water, and water with urea plus diluted manure water. After drying, scatter dry fine soil, then cover with film to keep warm.
-
Can African violets tolerate strong direct sunlight?
The native environment of the African violet is beneath large trees on high mountains, where the climate is stable and shady, and sunlight only reaches the leaves after being filtered through the foliage. Therefore, when growing African violets, you must take their own characteristics into account and must not treat them like ordinary flowering plants. Most flowering plants need more than 4 hours of direct sunlight each day in order to bloom. But the African violet is a rare exception: if you place it in a window with direct sunlight, the result is either yellowed, withered leaves or a blooming season with no flowers. Because the Af
-
Privet is an evergreen broadleaf tree species with strong resistance to pollution.
Privet is an evergreen tree of the genus Ligustrum in the olive family (Oleaceae). 1. Habits: Privet is native to China and Japan. It is light-demanding but tolerant of shade, prefers a warm, humid climate, and is suited to slightly acidic to slightly alkaline or calcareous soils. It can also grow in clayey soil with a salt content of 0.2%, can withstand low temperatures of -12°C, and is not tolerant of poor, thin soils. It is deep-rooted with well-developed fibrous roots, grows quickly, has strong sprouting ability, and tolerates pruning. It is not strict about climate, but is best planted in humid, sheltered, sunny spots, and grows especially well in deep, fertile soil rich in humus.
-
Hollow bricks for pig beds: pigs avoid rheumatism and grow fatter and stronger
At present, pig production in China is mainly small-scale or free-range, and pig-raising conditions are relatively poor. In northern China, temperatures from December to February of the following year are very low, only a few pig houses have heating, and the vast majority have low indoor temperatures, with pigs lying directly on concrete floors that are both damp and cold, causing a high incidence of rheumatism in pigs (such as lameness and paralysis), which affects weight gain speed and feed conversion rate. In particular, paralysis in farrowing sows leads to culling, causing great losses. In recent years, the author has used the method of laying hollow bricks as pig beds to prevent rheumatism in pigs, with excellent results. By September
-
Rice seedling raising is key: good seedlings mean half the rice is already grown, and strong seedlings lead to high yields.
Seedling-stage management for machine transplanting is key. Cultivating robust seedlings suitable for machine transplanting is the key to the success of promoting mechanized rice transplanting. "Good seedlings mean half the rice is grown, and strong seedlings lead to high yields." The quality of the seedlings plays an important role in the number of panicles, number of grains and grain weight in the later growth stages of rice. The basic requirements of mechanized transplanting for seedlings are overall uniformity and individual robustness, requiring that "a tray of seedlings has no tall and short ones, and a handful of seedlings has no thick and thin ones." High temperature and high humidity promote uniform emergence. Germinated rice seeds, after sowing, need to go through a period of high temperature and high humidity for seedling establishment.
-
Feed shrimp to 80 percent full, and the shrimp stay strong while you save on feed costs
According to shrimp-farming practice, if during the farming process you feed small amounts more often and appropriately stop feeding 1 to 2 meals every 7 to 10 days, not only can the shrimp grow robustly and gain weight normally, but you can also save on shrimp-farming feed costs. The small-amount-more-often shrimp-farming method. Small-amount-more-often means changing the 4 meals originally fed per day into 5 to 6 meals. Although the number of feedings per day increases, the amount fed each time is relatively reduced; feed that originally took 1.5 hours to finish can now be finished within 1 hour. Its benefits are: First, the feed
条件筛选