-
Charoen Pokphand's Western Taiwan chicken farms produce foul-smelling wastewater; Hualien residents strongly protest the plan to build plants in the east; CP apologizes for the pollution and hopes Hualien residents will give it a chance
Charoen Pokphand's Western Taiwan chicken farms produce foul-smelling wastewater; Hualien residents strongly protest the plan to build plants in the east; CP apologizes for the pollution and hopes Hualien residents will give it a chance
-
Pollution-free high-yield cultivation and management techniques for taro
Pollution-free high-yield taro cultivation and management techniques
-
Key Points of Pollution-Free, High-Yield Cultivation Techniques for Daikon Radish
Daikon radish is a plant of the genus Raphanus in the Brassicaceae family, and it is a common root vegetable in daily life. Daikon radish has fine, dense flesh, a sweet and juicy taste, and rich nutrition, ...
-
Jiangmen City, Guangdong Province, China, Vigorously Develops Pollution-Free Aquaculture
Jiangmen City, Guangdong Province, China, Vigorously Develops Pollution-Free Aquaculture
-
Rural sewage treatment: the real work lies beyond pollution control
Rural sewage treatment: the real work lies beyond pollution control
-
Prevention of soil pollution is better than remediation: nip the problem in the bud
Prevention of soil pollution is better than remediation
-
Technology helps turn straw waste into treasure, effectively solving the pollution problem
Technology "remedy" turns straw waste into treasure and solves the pollution problem
-
Detailed Explanation of Pollution-Free Control Techniques for Rice Pests and Diseases
I. Agricultural Control Agricultural control is the foundation for achieving pollution-free control of rice pests and diseases, and its basic principle is to create an environment that favors crop growth and development while disfavoring the breeding of pests and diseases. 1. Increase the application of organic fertilizers and gradually reduce the amount of chemical fertilizers used. In production, relying solely on chemical fertilizers (especially nitrogenous chemical fertilizers) while neglecting the cultivation, composting and use of organic fertilizers is one of the important reasons for the current severe occurrence of rice pests and diseases. Therefore, it is necessary to change concepts, attach importance to developing animal husbandry, planting green manure crops and composting various types of farmyard manure, and establish a new fertilization model based primarily on organic fertilizers and supplemented by chemical fertilizers. In order to increase the sources of organic fertilizer, it is required to plow and sow green manure or other crops in winter to prevent fields from overwintering fallow. Doing so can not only reduce the overwintering base of the striped stem borer (Chilo suppressalis) and sheath blight sclerotia, but also improve the soil. Organic fertilizer is a complete fertilizer and can comprehensively supply the various nutrient elements needed by crops, but it is also a slow-release fertilizer, and most of the nutrient elements it contains cannot be directly utilized by plants; they must first be decomposed by microorganisms into ammonium nitrogen and inorganic salts before they can be absorbed. The early stage of rice growth is precisely the key period when quick-acting fertilizers (especially nitrogen fertilizer) are needed. If the required nutrients cannot be guaranteed, it will inevitably affect normal tillering, resulting in failure to grow vigorously in the early stage and then delayed maturity with excessive vegetative growth in the later stage. Therefore, when increasing the application of organic fertilizer, attention must be paid to resolving the above contradiction between supply and demand in order to achieve safe nitrogen uptake by rice (that is, continuously and evenly supplying nitrogen fertilizer according to the needs of each growth stage, neither too much nor too little, so that rice grows steadily in the early and middle stages and does not senesce prematurely or grow excessively in the later stage). For example: when green manure is the main fertilizer source, first, the total application amount must be controlled, with about 1000 kg of fresh grass applied per 667 sq m, and not too much; second, when sowing green manure, green manure varieties with different degrees of decomposition difficulty must be mixed and sown; third, plowing must be carried out early at the appropriate time to promote the decomposition of green manure. When barnyard manure and cake fertilizer are the main fertilizer sources, efforts should be made to fully decompose them before application, they should be distributed evenly during application, and attention should be paid to intermittent irrigation after transplanting to promote the decomposition of organic fertilizer. Increasing the application of organic fertilizer does not exclude the use of chemical fertilizers; the two should be combined. At the beginning of tillering, apply 50 kg to 100 kg of silicon-manganese compound fertilizer per 667 sq m in a timely topdressing to promote early and rapid growth and steady development of the seedlings, laying a good foundation for pollution-free rice production.
-
Detailed Explanation of Technical Specifications for Pollution-Free Pesticide Use in Potatoes
1. Cultivating strong seedlings free of pests and diseases (1) Seed potato selection: For pollution-free potatoes, seed potatoes that are pest- and disease-resistant, disease-tolerant, and free of pest and disease damage should be selected. A seed-production field free of pests and diseases should be strictly established, and pest- and disease-free small whole seed potatoes should be cultivated in the pest- and disease-free seed-production field. The small whole seed potatoes kept for seed should be selected during storage. After the seed potatoes are taken out of the cellar, they should be strictly selected, using young and mature tubers as seed, and eliminating tubers with undesirable traits such as irregular shape, rough and aged skin, protruding eyes, and dull skin color. The quality of seed potatoes shall meet the requirements for improved grain crop varieties or above under GB8079-1987.
-
Key Points of Pollution-Free High-Yield Garlic Cultivation Techniques
Chengbei in Meijiang District is located in the urban area of Meizhou and is the main vegetable production base of the Meizhou urban area. Garlic is one of the main vegetables cultivated in our district. Chengbei Town is far from industrial and mining areas, and there are no enterprises discharging the "three wastes" nearby. The farmland atmospheric environment is good, the irrigation water quality and soil environmental quality meet the conditions for pollution-free vegetable production, the soil plough layer is deep, the soil is fertile, and the organic matter content is above 1.0%, which is suitable for garlic growth. 1 Land preparation and sowing 1.1 Land preparation The tillage depth is about 20cm. Fine tillage, harrowing level and harrowing firm are required, with no obvious clods, reaching "level, loose, fine
条件筛选