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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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How to control potato ring rot? Key points of control techniques in high-altitude cold regions
Potato ring rot is extremely widespread, occurring in almost all areas where potatoes are cultivated, and is especially severe in the Northeast region, where it can reduce potato yields by 20%-30%. It is a very serious bacterial disease that not only affects potato yield but also affects potato quality, with poor edibility, causing serious economic losses to agricultural production. Therefore, management should be strengthened and timely prevention should be carried out. 1 Distribution and harm Potato ring rot occurs in Asia, Europe, North America, South America and other regions, and in China it is found throughout the country
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Detailed Explanation of the Principles and Key Technologies of the Three-Super Cultivation of Rice in Cold Regions
The Three-Super cultivation technology for rice in cold regions addresses the growth-limiting factors currently present in high-yield rice cultivation in cold regions, such as a short growth period, excessive basic seedlings, excessive consumption of growth, poor light-receiving posture of the plant type, and decline of late-stage growth. Taking the "ridge-edge rice cultivation effect" as a model, it takes creating the largest super-high-yield population with the fewest basic seedlings as its basic approach, and takes "extending and expanding the nutritional time and space, releasing production potential, and strengthening the dual canopy (plant canopy and root canopy) performance" as its basic principle. It adopts standard high-quality super rice, uses single (double) seed positioning with ultra-early, ultra-low-rate sowing
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Demonstration and promotion of high-quality, high-yield rice for cold regions carried out in Heilongjiang
The National Agricultural Science and Technology Leap Program project "Integration and Demonstration of New High-Quality, High-Yield Rice Varieties for Cold Regions and Vegetative Matter Cultivation Technology" was officially launched on March 2 in Heilongjiang Province. The project is undertaken by the Heilongjiang Academy of Agricultural Sciences and Heilongjiang Bayi Agricultural University, and it is the first time that Heilongjiang Province's rice planting industry has been included in the National Leap Program. The project adopts three new high-quality, high-yield rice varieties of different maturity periods - Songjing No. 9, Longdao No. 5, and Longjing No. 14 - which were approved and promoted by the Heilongjiang Academy of Agricultural Sciences in the past two years and have passed national super rice acceptance, as well as vegetative matter pot seedling
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Detailed Explanation of High-Yield Soybean Cultivation Techniques in the Northern High-Cold Region
The scope covered by this model includes the vast areas of the northern part of the third accumulated temperature zone and the fourth accumulated temperature zone in Nehe, Keshan, Yi'an, Kedong in northern Qiqihar, Heilongjiang, and Wudalianchi, Nenjiang, Bei'an, Xunke, Aihui, Sunwu and other counties (cities and districts) of Heihe City. The soybean planting area in this region is about 10 million mu, which has a decisive influence on soybean production in the entire province and even the whole country. This region has a large cultivated land area, a high degree of mechanization, and a commodity rate as high as 70%. It is an important soybean export base for the province and the country.
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How can fish injuries be avoided when catching fish in cold seasons?
Influenced by China's traditional farming model, the cold season is the main period for catching fish, either harvesting adult fish for market at this time, or catching fingerlings for stocking. Whether the catching method is correct has a certain impact on the next stage of farming, and improper catching can easily cause fish diseases. To ensure the smooth progress of the next stage of farming, the following issues should be noted when catching fish: Before catching, pay attention to removing debris. Before catching, be sure to remove debris around the pond and in the pond, such as branches, weeds, etc., to ensure the
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Pig farmers, take note: never spray cold water on pigs in the height of summer
In the height of summer, when temperatures are high, pigs often pant heavily from the heat. Some farmers, worried that the pigs will get sick from the heat, spray cold water on them, hoping to cool them down and make them feel more comfortable, not realizing that this does more harm than good. Pigs pant from the heat because they do not sweat effectively, so the heat in their bodies cannot be released for the time being. If cold water is sprayed on the pigs at this point, the strong cold stimulus makes the sweat pores all over their bodies contract sharply, the release of body heat is blocked, and their body temperature instead rises abruptly. In mild cases this causes high fever and lung inflammation; in severe cases it leads to death. Therefore
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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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A Detailed Explanation of the Effects of Low-Temperature Cold Damage on Rice and Defensive Measures
Rice cold damage refers to the disaster in which rice is affected by low temperatures below the minimum critical temperature for growth, resulting in the inability of rice to grow and develop normally and thus causing reduced yields. Depending on the period of damage, it can be divided into delayed-type cold damage, sterility-type cold damage, and mixed-type cold damage. I. Types and Characteristics of Rice Cold Damage 1. Delayed-type cold damage: During the vegetative growth period of rice, and sometimes also during the reproductive growth period, the plant is harmed by relatively low temperatures over a longer period, which weakens the physiological activity of the rice plant, delays its development, postpones heading and flowering, and prevents full grain filling and
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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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