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Is japonica rice hybrid rice? Recommended high-quality japonica rice varieties
The author recently learned from the Bokun Agricultural Research Institute in Yixing City, Jiangsu Province: the institute, in cooperation with the National Rice Improvement Center of the China National Rice Research Institute and other units, has achieved a breakthrough in the work of "breeding new multi-resistant, high-yield, high-quality japonica rice varieties," successfully breeding a batch of new high-yield, high-quality japonica rice lines such as 4701 and 4714 that are resistant to pests and diseases including brown planthopper and rice blast. It is reported that the bred new high-yield, high-quality japonica rice lines combine genes for resistance to brown planthopper, white-backed planthopper, rice blast, and stripe leaf blight, as well as high-yield and high-quality
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Detailed Explanation of High-Efficiency Supporting Production Technology for Oil Pumpkin and Rice (Part 2)
IV. Supporting Watermelon Interplanting Technology 1. Fertilization and transplanting. Before interplanting watermelon, apply 1800-2400 kg of organic fertilizer per 667 sq m, and 50 kg of watermelon-specific fertilizer, applied into holes before planting. Interplanting is carried out in late April. After transplanting, promptly water with a 0.3% urea solution to settle the roots, so as to improve the survival rate of the watermelon seedlings. Pay special attention that the concentration of the root-settling manure water must not be too high, to prevent damage to the seedlings. 2. Vine pruning and fruit setting. For vine pruning, adopt the two-vine or three-vine system, that is, 1 main vine with 1-2 side vines, and
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How to identify high-quality fish fry? Just look at these few points
First, look at the size of the fry. In the same pond, the same species of fish should be uniform and even when harvested, with little difference in body length and body weight. On the contrary, poor-quality fry with large individual differences and uneven size often have a very low overall survival rate due to competition for food, mixed genetics, poor rearing, and other reasons. Second, look at the body color of the fry. High-quality fry have bright, glossy body colors. Different species and different rearing methods produce fry with different body colors. Generally speaking, high-quality silver carp fry should have a silver-gray back, with silvery-white sides and belly; high-quality grass carp fry are pale
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Latest Research Progress on Porcine High Fever Syndrome
The "high fever syndrome" that first broke out in southern China in the summer of 2006 has not yet subsided, and it is currently the issue of greatest concern to us pig farmers. Some readers have also called our editorial office to inquire about research progress on the disease! At the "Beijing Animal Husbandry Association Pig Industry Annual Meeting", Academician Chen Huanchun of Huazhong Agricultural University and Professor Yang Hanchun of China Agricultural University were invited to each express their personal views on the currently prevalent "high fever syndrome". 1 Epidemic situation First, geographically
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Detailed Explanation of Key Techniques for High-Yield Cultivation of Schisandra chinensis
Schisandra chinensis is a medicinal plant. Its wild resources are increasingly dwindling, while market demand keeps growing. The key techniques for high-yield cultivation of Schisandra chinensis are as follows: 1. Seedling cultivation. Schisandra chinensis is suitable for growing in slightly acidic soil. Large-scale cultivation is possible in areas with more than 115 frost-free days per year and an accumulated temperature above 2300°C. The cultivation site should be level ground or a shady slope with good drainage and a low groundwater table. Trellis cultivation is adopted, with a plant-to-row spacing of 0.75 m x 2 m to 1.0 m x 2 m. Planting is done in late April. Before planting, soak the seedlings in clean water for 12 to 24
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What are the methods for getting Schisandra chinensis to produce a high yield in its second year?
In the process of cultivating Schisandra chinensis, a single plant with two canes is generally used. With good management, it can fill the trellis in the same year, but most plants fill only half or a bit more than half the trellis. Nowadays, it is best to plant a single plant with a single vine. The specific method is to leave half a trellis in the first year; that year the cane can grow 2 m, the main vine's thickness can reach more than 0.4 m, and in the second year the yield per mu can reach more than 400 jin. In the spring of the second year, reserve canes are selected at the base of the main vine and from the underground stem, and in the third year the two vines bear fruit. Another method is the close-planting method, that is, 2200 plants per mu,
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Detailed Explanation of High-Yield Cultivation Techniques for Schisandra chinensis
To achieve high yield and high efficiency in the artificial cultivation of Schisandra chinensis, three key aspects must first be addressed: first, variety selection, purification and improvement must be carried out; second, a period of domestication and adaptation is required; third, pruning must be intensified to regulate and control tree vigor. These three aspects complement each other and none can be omitted. As early as more than 20 years ago, many farmers in our county tried cultivating Schisandra chinensis one after another, but all ultimately failed. The Kuandian County Schisandra chinensis Improved Variety Breeding Base also began experiments in 1985, but the first two attempts were also unsuccessful. In 1993, they summarized the reasons for the two failures and restarted
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How to Grow Schisandra chinensis for High Yield? A Detailed Guide to Cultivation Techniques
I. Propagation Techniques Currently, artificial cultivation mainly uses seed propagation. Because the seed coat is hard and smooth with an oily layer, has poor water permeability, and does not sprout easily without treatment, after the fruit is harvested, large fruits should be selected and soaked in water for 3 to 4 days and nights, then the flesh should be removed, and they should be rinsed clean, with shriveled seeds and debris removed, the surface moisture dried, and then stratified or mixed with moist, clean river sand for storage and germination promotion, but care should be taken that the river sand is not too wet. After spring begins, check frequently to prevent mildew. Generally, store until April, when the seeds crack open and reveal
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Key Technical Points for Standardized High-Yield Cultivation of Schisandra chinensis
Schisandra chinensis is a medicinal plant of significant economic value in the Changbai Mountain region. Due to years of damage from human factors, wild resources have been greatly reduced, and reliance on wild resources is far from sufficient to meet the growing demand of the traditional Chinese medicinal materials market, pharmaceutical and processing enterprises. It is imperative to carry out research on domesticating wild plants for cultivation and move toward cultivation. Based on a large number of experimental studies, this achievement for the first time proposes a complete set of high-yield cultivation techniques for Schisandra chinensis, with seedling raising, orchard establishment, training and pruning, soil management, and pest and disease control as the main contents, enabling Schisandra chinensis under artificial cultivation
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Detailed Explanation of Rapid High-Yield Cultivation Techniques for Northern Schisandra
Schisandra (Schisandra chinensis (Turcz.) Baill. Hist.) is distributed in Northeast China and is a wild woody vine fruit tree. Its fruit is both a commonly used precious Chinese medicinal herb and a raw material for processing fruit wine and juice beverages. Due to long-term destructive harvesting and other human factors, wild resources are scarce. While strengthening resource protection efforts, conducting large-scale artificial cultivation is the fundamental way to solve the raw material shortage. Based on years of research results and production experience, practical
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