| 四川省农田土壤养分收支状况浅析 |
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| 引用本文： | 杨光蓉,敖跃平.四川省农田土壤养分收支状况浅析[J].四川农业大学学报,1988(2). |
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| 作者姓名： | 杨光蓉 敖跃平 |
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| 作者单位： | 四川农业大学农化系，四川农业大学农化系 |
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| 摘 要： | 本文通过对建国以来四川省主要农区144县,有代表性的八年的土壤养分收支资料的统计,说明农业物质循环规模是逐年扩大了,化肥在扩大农业物质循环中已逐渐占主导地位;土壤养分逐年有所累积,肥力应是上升的;有机肥是维持农业物质循环的物质基础,在施用有机肥的基础上,合理配合化肥施用,是维持和迅速扩大农业物质循环,提高土壤肥力的重要途径。
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| 关 键 词： | 循环(31K、45DD) 土壤有效养分(49BC) 土壤肥力(49BE) 有机肥(49BG) |
SIMPLE ANALYSIS OF STATUS OF SOIL NUTRIENT REVENVE AND EXPENDITURE OF FARMLAND IN SICHUAN PROVINCE |
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| Yang Guangrong et al.SIMPLE ANALYSIS OF STATUS OF SOIL NUTRIENT REVENVE AND EXPENDITURE OF FARMLAND IN SICHUAN PROVINCE[J].Journal of Sichuan Agricultural University,1988(2). |
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| Authors: | Yang Guangrong |
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| Abstract: | Based on the statistical data of the soil nutrient revenue and expenditure of the major agricultural areas in Sichuan province, this paper shows that the scale of the agricultural matter cycle has been gradually enlarged since 1949. Chemical fertilizers have graduallly played a leading role in extending agricuitural matter cycle. The soil nutrient has been accumulated in some extent year by year and the soil fertility has been improved. Organic fertilizers are the foandation in maintaining the agricultural matter cycle. Using organic fertilizers with appropriate chemical fertilizer is an important way to the maintenance and rapid enlargement of agricultural matter cycle and the improvement of sofl fertility. |
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| Keywords: | CIRCULATION AVAILABLE NUTYIENT OF SOIL SOIL FERTILITY ORGANIC FERTILIZER(man ure) |
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