China’s agricultural modernization drive has made steady progress with great achievements.After six decades of development,China has reached the mid-stage of agricultural modernization.By the average pace of recent y...China’s agricultural modernization drive has made steady progress with great achievements.After six decades of development,China has reached the mid-stage of agricultural modernization.By the average pace of recent years,China is poised to attain agricultural and rural modernization by 2035,but progress will vary considerably across regions and sectors.A transition towards an agricultural powerhouse is the only path towards agricultural modernization.Being a large agricultural producer,China has yet to qualify as an agricultural powerhouse in terms of agricultural sufficiency,competitiveness,innovation,and sustainability.From the mid-and long-term perspective,our agricultural modernization should proceed in light of China’s rural reform experience,focusing on food security,agricultural industry,green transition,and agri-tech.With a regionally differentiated approach,China should aim to basically achieve agricultural and rural modernization in about 15 years and complete the transition towards an agricultural powerhouse in 20 years from 2020.展开更多
The current status of chemical fertilizers production and consumption in China as well as their important roles in Chinese modern agriculture are discussed with special concerns to the environmental issues related to ...The current status of chemical fertilizers production and consumption in China as well as their important roles in Chinese modern agriculture are discussed with special concerns to the environmental issues related to chemical fertilizer use. On the one hand, the total amount of chemical fertilizer produced is insufficient to meet the agricultural needs. On the other hand, the production and consumption of chemical fertilizers in China are obviously not balanced. In some areas over application of nitrogen fertilizers and loss of phosphate fertilizer due to soil erosion have resulted in some undesirable environmental problems such as increase of nitrate in water and eutrophication of water bodies. Maximum scientific uses of organic manures in combination with reasonable use of chemical fertilizers are part of good practices not only in increasing soil productivity and keeping sustainable agriculture development but also in mimimizing their detrimental effects on the environment.展开更多
Over-use of fertilizer in paddy fields could lead to agro-environmental pollution. Therefore, the Paddy Fertilizer Recommendation System (PFRS) application package was designed to aid in the dissemination of fertilize...Over-use of fertilizer in paddy fields could lead to agro-environmental pollution. Therefore, the Paddy Fertilizer Recommendation System (PFRS) application package was designed to aid in the dissemination of fertilizer recommendations for paddy fields. PFRS utilized geographical information system (GIS) ActiveX Controls, enabling the user to select a location of interest linked to a spatial database of paddy field soil characteristics. The application package also incorporated different soil fertilizer recommendation methods, forming a relational database. The application's structure consisted primarily of building database queries using Standard Query Language (SQL) constructed during run-time, based on user provided spatial parameters of a selected location, the type of soil desired and paddy production criteria. PFRS, which was comprised of five modules including: File, View, Edit, Layer and Fertilizer/Model, provided the user with map-based fertilizer recommendations based on selected soil nutrient P and K map layers as well as N characteristics and land use maps.展开更多
文摘China’s agricultural modernization drive has made steady progress with great achievements.After six decades of development,China has reached the mid-stage of agricultural modernization.By the average pace of recent years,China is poised to attain agricultural and rural modernization by 2035,but progress will vary considerably across regions and sectors.A transition towards an agricultural powerhouse is the only path towards agricultural modernization.Being a large agricultural producer,China has yet to qualify as an agricultural powerhouse in terms of agricultural sufficiency,competitiveness,innovation,and sustainability.From the mid-and long-term perspective,our agricultural modernization should proceed in light of China’s rural reform experience,focusing on food security,agricultural industry,green transition,and agri-tech.With a regionally differentiated approach,China should aim to basically achieve agricultural and rural modernization in about 15 years and complete the transition towards an agricultural powerhouse in 20 years from 2020.
文摘The current status of chemical fertilizers production and consumption in China as well as their important roles in Chinese modern agriculture are discussed with special concerns to the environmental issues related to chemical fertilizer use. On the one hand, the total amount of chemical fertilizer produced is insufficient to meet the agricultural needs. On the other hand, the production and consumption of chemical fertilizers in China are obviously not balanced. In some areas over application of nitrogen fertilizers and loss of phosphate fertilizer due to soil erosion have resulted in some undesirable environmental problems such as increase of nitrate in water and eutrophication of water bodies. Maximum scientific uses of organic manures in combination with reasonable use of chemical fertilizers are part of good practices not only in increasing soil productivity and keeping sustainable agriculture development but also in mimimizing their detrimental effects on the environment.
基金Project supported by the National Natural Science Foundation of China (No. 40001008) the China-British Higher Education Links (No. SHA/992/297).
文摘Over-use of fertilizer in paddy fields could lead to agro-environmental pollution. Therefore, the Paddy Fertilizer Recommendation System (PFRS) application package was designed to aid in the dissemination of fertilizer recommendations for paddy fields. PFRS utilized geographical information system (GIS) ActiveX Controls, enabling the user to select a location of interest linked to a spatial database of paddy field soil characteristics. The application package also incorporated different soil fertilizer recommendation methods, forming a relational database. The application's structure consisted primarily of building database queries using Standard Query Language (SQL) constructed during run-time, based on user provided spatial parameters of a selected location, the type of soil desired and paddy production criteria. PFRS, which was comprised of five modules including: File, View, Edit, Layer and Fertilizer/Model, provided the user with map-based fertilizer recommendations based on selected soil nutrient P and K map layers as well as N characteristics and land use maps.
