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Is "rice-duck symbiosis" an agro-ecological model? What's your opinion? Rice-duck co-culture is a new green ecological production model, which can inhibit the weeds and insect pests in the paddy field on the one hand, which is conducive to the growth of rice, and on the other hand, it also provides a good space and environment for duck breeding, thereby improving the efficiency of resource utilization and significant economic benefits.
There are many benefits of raising ducks in rice fields, the first can effectively control weeds, reduce insect pests such as locusts, green insects and other insect pests, ducks in the rice field activities can improve the water cycle and loosen the soil, duck manure reduces the number of top dressing in the rice field, ducks catch insects in the rice field about duck feed, long-term stocking in the rice field duck duck meat quality taste is very good, so as to achieve rice and duck co-profit. <>
Rice-duck co-culture is a kind of integrated planting and breeding model of paddy fields, and it is an agricultural development model encouraged and promoted by the state. The development of rice-duck co-cultivation first solved the contradiction of land competition for planting and breeding. Ducks eat insects and grass, which solves the problem of weeds and insect control in paddy fields, and duck manure becomes organic fertilizer, and rice growth provides fertilizer, which minimizes the use of chemical fertilizers, avoids farmland non-point source pollution, purifies water bodies, forms a resource cycle and effective utilization, and reduces agricultural production costs.
Secondly, the ecological environment and the quality of agricultural products have been improved. The rice produced through this model is organic rice without drug residues, which responds to the national grain supply-side reform and meets the needs of competition in the grain market, and has an obvious effect on increasing income. <>
In this environment, the quality of the ducks bred and produced is also higher than that of the ducks fed with feed, which not only reaps the benefits of duck raising, but also increases soil fertility. Practice has proved that whether the development of rice-duck co-culture, or rice-shrimp co-culture, rice-crab co-culture, rice-fish co-culture, its comprehensive benefits are very significant, and much higher than the traditional rice planting model, in order to promote the adjustment of agricultural structure, increase farmers' income, and promote the healthy and sustainable development of agriculture, are of great significance, worthy of reference and promotion in various places.
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Yes; Personally, I think that rice-duck symbiosis is a relatively speaking, sustainable ecological development model, which is relatively reasonable in terms of economy, and is also very applicable technically, and will be recognized by the society, and is a relatively green ecological model.
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"Rice-duck symbiosis" is one of the basic models of ecological agriculture, in the rice field, the use of scattered rice to raise ducks, which is a better use of agricultural resources.
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I think this new model of agriculture is really an ecological model; I think this is a very good behavior and model to better protect society and the environment.
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1) Field selection: The plots with no pollution, abundant water resources, flat terrain and square contiguity should be selected as the rice-duck symbiosis area, and the ridges should be heightened and widened to facilitate the ducks to rest and retain water.
2) Rice variety selection: choose high-yield Zheng high-quality varieties with moderate plant height, straight plant shape, strong tillering ability, resistance to rice blast and rice koji disease, moderate maturity, and can avoid the harm of two and three borer. At the same time, it is also required to cultivate strong seedlings of appropriate age (seedling age is about 30 days, and the age of key song leaves is 4 to 5 leaves).
3) Selection of service ducks: suitable for the symbiosis of rice ducks, it is best to choose service duck varieties such as Hunan Youbu Qixian hemp duck, Fujian Jinding duck, Hubei Jingjiang duck, Jiangsu Gaoyou duck and Chaohu duck. These ducks are small and medium-sized individuals, each adult duck weighs kilograms, and is stocked between rice with flexible activities, small food amount, low cost, strong resistance to stress and wide adaptability.
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Rice-duck symbiosis is a composite ecosystem based on paddy field, centered on rice planting, and characterized by wild breeding of domestic ducks, which is a combination of natural ecology and human intervention, which is based on the characteristics of each growth period of rice, the occurrence law of diseases and insect pests, the physiology and living habits of service ducks, and the growth and decline law of rice field feed organisms.
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a. The green plants (weeds, rice) in the ecosystem belong to the producers, a is correct;
b. Ducks can prey on pests, so the interspecific relationship between ducks and pests is a predatory relationship, and B is correct;
c. Weeds and rice will compete for living space, sunlight and nutrition, etc., and the two belong to a competitive relationship, and C is correct;
d. Information transmission of physical information, chemical information and behavioral information, there is information transmission between abiotic matter and energy, rice, ducks, pests and weeds, but not all kinds of information transmission exist, d error
Therefore, d
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