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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.
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Application method of simple temporary holding facilities for fish
At present, there are quite a few flow-through aquaculture farms in Sichuan, mainly culturing cold-water fish species, and most of their culture facilities use concrete ponds. During the earthquake, these concrete ponds were damaged to varying degrees by the destructive force of the earthquake, which may cause pond leakage and so on. If they are not repaired in time, the water in the ponds may be lost, creating a crisis for the survival of the cultured aquatic organisms, and even causing all the water in the ponds to run out, resulting in the death of the cultured aquatic organisms and bringing huge economic losses to the farmers. If
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How should golden pear be managed in summer to improve quality?
In recent years, golden pear has developed rapidly, and the planting area has continued to expand, but the rate of high-quality fruit is not high, mainly because there are too many deformed fruits and russeted fruits. Summer management is the key period for improving fruit quality. The main technical measures for summer management of golden pear are summarized as follows: 1. From mid-June to late August is the fruit expansion period, and golden pear has a relatively high water requirement. Under drought conditions, the pear shrinks and wrinkles during the day and absorbs water at night to replenish itself, so it can recover or grow; otherwise the fruit is small or wrinkled skin forms throughout. In late July
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Control Methods for Green Mold Disease in Lingzhi (Reishi Mushroom)
Green mold (Trichoderma viride Pers. ex Fr.) belongs to the class Hyphomycetes, order Moniliales, family Moniliaceae, genus Trichoderma, under the subdivision Deuteromycotina. 1. Morphological characteristics: The hyphae are slender, colorless, septate, and much branched. Conidiophores arise from lateral branches of the hyphae, opposite or alternate, generally with 2-3 branchings; the sterigmata bearing conidia are flask-shaped or cone-shaped. Conidia are mostly spherical, with the spore wall bearing small warty protuberances, green or blue-green. On PDA medium, the colony is initially white and cottony, later becoming dark
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Golden lilies bloom easily, and both planting and care are not difficult
Golden lilies are mostly used as cut flowers and bloom easily. When planting, pay attention to the following points: 1. It is best to cultivate with plump bulbs - the purchased bulbs should be plump and elastic so they will bloom easily in the future; shriveled bulbs, damaged bulbs, or bulbs that have been stored too long will fail to bloom. 2. Do not expose to light in the early stage of planting the bulbs - it is best to plant the "bulbs" in autumn or spring, burying 2/3 in the soil with the tip pointing upward and about 1/3 exposed. Keep the planting soil moist, do not fertilize for the time being, and keep it cool and shaded, exposing it to as little light as possible. This will not only help it root faster, but also use the "dark period"
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How to Prevent Cold Damage in Rice? Detailed Explanation of Fertilization Measures
Fertilization case: In 2006, in rice-growing areas such as Shangzhi City, Heilongjiang Province, during the early stage of rice growth, some rice seedlings encountered low-temperature weather below 17°C, and rice cold damage problems of varying degrees occurred. In the rice-growing areas of Ningxia and Zhangjiakou, Hebei in the northwest region, in autumn during the late stage of rice growth, just at the grain-filling stage, the temperature suddenly dropped below 20°C, causing rice to suffer cold damage, which was very unfavorable for grain filling, and the seed-setting rate decreased by 10-20%, with severe cases decreasing by more than 50%. Expert comments: In northern rice-growing areas, in order to defend against the cold damage problems brought to rice production by low-temperature weather
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What is the one-year-old fish fingerling rearing model in the Guangdong-Guangxi region?
The method of rearing one-year-old fish fingerlings in the Guangdong-Guangxi region differs from that in Jiangsu and Zhejiang. Rather than starting with polyculture of multiple species, monoculture is carried out in the early stage, and after the fish grow to 5-6 cm, polyculture is then carried out according to a ratio. The advantages of this method of rearing one-year-old fish fingerlings in Guangdong and Guangxi are: (1) The survival rate of fish in early-stage monoculture is relatively high, generally 80%-90%. (2) When stocking in proportion in the later stage, "eliminating the inferior and selecting the superior" can be applied. Selecting fish with strong constitutions for polyculture can correspondingly increase the survival rate
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Lily gray mold (Botrytis elliptica Cooke)
Commonly known as lily leaf blight. It mainly damages leaves, but also infects stems, flowers, buds and bulbs. Leaf spots are round or oval, yellow-brown or red-brown, with the center of the spot light yellow or light brown and the edge purplish red or pale red. When the weather is humid, a gray mold layer grows on the diseased part; when dry, the spots become thin and brittle, semi-transparent, and light gray. After the spots expand, the leaves die, and affected buds and flowers look as if scalded by boiling water, turning brown and then rotting. When stems are affected, light brown canker spots form, and they break very easily in the wind. After young plants are infected, the growing point
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Golden Pumpkin and Lily Soup recipe, sweet and refreshing, nutritious and delicious
Ingredients: 1000 g golden pumpkin, 200 g fresh lilies, 2500 g boiling water. Method: (1) Peel the golden pumpkin, remove the seeds and pulp, and cut into pieces. Add water to a pot, place over heat, add the pumpkin pieces, bring to a boil, then move to low heat and cook for about 15 minutes, then remove and set aside. (2) Strain the pumpkin through fine cheesecloth, blanch the fresh lilies briefly in water and cool them in cold water, then set aside. (3) Put the pumpkin juice back over heat for a second time,
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Lily gray mold (Botrytis elliptica Cooke)
Commonly known as lily leaf blight. It mainly damages leaves, and also infects stems, flowers, buds and bulbs. Leaf lesions are round or oval, yellowish-brown or reddish-brown, with the center of the lesion pale yellow or light brown and the edge purplish-red or pale red. In humid weather, gray mold grows on the diseased parts; when dry, the lesions become thin and brittle, semi-transparent, light gray. After the lesions expand, the leaves die, and affected buds and flowers look as if scalded by boiling water, turning brown and then rotting. When stems are affected, light brown canker spots form, and they break easily in the wind. After young plants are infected, the growing
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