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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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Water-saving and high-yielding rice, with a jasmine fragrance in every bowl
Wearing shoes to go into the paddy field, water-saving rice cultivation has become a reality. After the team led by researcher Luo Lijun at the Shanghai Agrobiological Gene Center created the world's first hybrid upland rice "Huhan 1A", it has achieved another breakthrough. Hanyou 3 has been approved, and under the condition of saving 50% of water resources, its actual yield per mu exceeded 500 kg for the first time. Shanghai's hybrid upland rice research took scientists 10 years, screened 10,000 resources, and selected more than 100 relatively drought-tolerant resources as parents for breeding. "The characteristic of hybrid rice is high yield, just like
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Detailed explanation of feed-saving rearing methods for chickens, helping you reduce the cost of chicken feed
The cost of chicken feed accounts for about 70% of the total rearing cost, so saving feed to reduce costs is the main way to improve the economic benefits of chicken rearing. The following methods can be used to save feed: 1. Raise excellent breeds. Choose excellent breeds of chickens to raise; at the same age and with the same amount of feed consumption, the production performance of excellent breeds is much higher than that of other breeds. There are more than a dozen high-yielding layer and broiler breeds in the world today, and most of them have already been introduced into China. The laying hens suitable for raising in the north mainly include excellent breeds such as Lohmann, Hysex, and Hy-Line.
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Key Techniques for Water-Saving Cotton Cultivation in Semi-Arid Saline-Alkali Land
Cotton has always been an important economic crop, and continuously improving cotton yield and quality is of great significance for increasing agricultural efficiency and farmers' income. Over the years, through gradual exploration, a relatively complete set of cotton cultivation techniques for semi-arid saline-alkali land has been developed, achieving the goals of early maturity, high yield, and high quality in drought-resistant cotton planting. This has solved the problems of difficult emergence, difficult seedling retention, slow development, and late maturity when planting cotton in saline-alkali land due to lack of water resources. The cotton yield-increasing techniques for semi-arid saline-alkali land mainly include seed preparation, fertilization, chemical control, pruning, and other steps.
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New Cotton Cultivation Technique: Saving Labor and Increasing Yield at the Same Time
This technique is based on the cotton cultivation method in which cotton is not pruned or disbudded, but only the terminal bud and side buds are removed, also called the two-time topping cultivation method. On that basis, a more labor-saving one-time topping cultivation method has been introduced. It saves at least 70% of labor, while increasing yield by more than 8%, and cotton quality is basically on par with the traditional method. Its key techniques are as follows: 1. Select good varieties and keep the sowing date moderate. It is advisable to choose large-plant types with strong mid-season growth, with seed cotton yield per mu of no less than 350 kg and high-yielding varieties exceeding 500 kg. Usually, the Hua Kang III series, Qiufeng Large Boll series, and disease-resistant
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Cotton seed: never harvest prematurely opened bolls; pay attention when saving and selecting seed
According to data from seed management department testing, in recent years the germination rate of some cotton seed has been only around 60%, still far from the national standard of 80% germination rate. From extensive surveys, the reasons for low cotton seed germination rates are: first, harvesting immature prematurely opened bolls; second, purchasing "favor bolls" with high moisture content; third, mixing in diseased seed from rotten cotton bolls; fourth, storing cotton seed in the warehouse before it is fully sun-dried; fifth, containing some cotton seed broken during processing; sixth, relatively high residual acid content in coated cotton seed; seventh, not strictly
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Lily Harvesting and Seed Saving Methods and Technical Key Points
1. Timely harvesting (1) For vegetable edible lilies, early harvesting can be done from the Summer Solstice to before Minor Heat, when the lower 1/3 of the lily leaves turn yellow, the bulbs are near their maximum size, and the sugar content of the scales reaches its peak. To fetch a high price, "green-stalk lilies" can be harvested early from late June to early July for use as a vegetable. Edible lily bulbs, because of their high water content and high monosaccharide content, are not suitable for seed saving or storage; when used to process dried lilies, the finished product rate is not high. (2) For medicinal and processing lilies, yellow harvesting is suitable around Major Heat, when 2/3 of the lily leaves turn
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Garlic Seed Selection and Saving Methods and Key Technical Points
Garlic is propagated by using the bulbs as seed. For seed saving, choose bulbs with thick, sturdy stalks, deep green leaves, a good root system, no pests or diseases, and that are large and plump. At the same time, pay attention to timely harvesting. If the bulbs are harvested too early, the cloves will not be plump or firm, and when planted the following year they will have weak germination vigor, uneven emergence, and leaves that curl into tubes without opening; if harvested too late, the outer skin of the bulbs will split, and many cloves will scatter. The harvest time is generally best 25-30 days after the garlic scapes are harvested. At harvest, the aboveground part should have four or five leaves, the cloves should be countable by hand as raised bumps, and the outer skin should be purplish red. When harvesting garlic bulbs, you must
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Imitative wild cultivation technology for Gastrodia elata: efficient and material-saving
Terminology explained: ① From wild Gastrodia elata dug up over many years, it is not hard to find that the populations with large tubers, dense growth and high yield share a common set of features, summarized as: thick leaf-litter layer with tubers breaking through the ground (exposed above the surface), loose soil so air is not blocked, seven parts shade with little sunlight, and moisture suited to each of the four seasons. The inspiration for artificial imitative wild planting of Gastrodia is shallow beds, thin soil and thick mulch. ② High efficiency: imitative wild Gastrodia intercropped in the same bed with sweet potato gave a test result in which the total yield of Gastrodia was twice that of sweet potato, hence
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Energy-saving and heat-preserving methods for winter cultivation of oyster mushrooms
In winter, when temperatures are low, cultivating oyster mushrooms often results in slow mycelial growth or no growth at all, and even if mushrooms do form, they may be deformed. Heating with coal stoves is costly and can easily cause poisoning symptoms in the mushrooms. The following measures make full use of biological heat to keep the mushroom bags at a relatively high temperature for mycelial growth, which can save cultivation costs. If oyster mushrooms are bagged and inoculated in autumn, by the time the weather turns cold, half the bag will have well-developed mycelium. Keeping such bags warm during cultivation allows the mycelium to quickly fill the entire bag. For those not bagged and cultivated in advance, heating can be applied all at once.
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