[1]LI Taikui,ZHANG Xiangning,KOU Changlin,et al.Effects of Green Manure Planting on Nitrogen and Phosphorus Losses Along with Runoff from Citrus Orchards on Sloping Land in the Danjiangkou Reservoir Area[J].Research of Soil and Water Conservation,2018,25(02):94-98.
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Effects of Green Manure Planting on Nitrogen and Phosphorus Losses Along with Runoff from Citrus Orchards on Sloping Land in the Danjiangkou Reservoir Area
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 02
Page number:
94-98
Column:
Public date:
2018-04-03
- Title:
- Effects of Green Manure Planting on Nitrogen and Phosphorus Losses Along with Runoff from Citrus Orchards on Sloping Land in the Danjiangkou Reservoir Area
- CLC:
- S157.2;X522
- DOI:
- -
- Abstract:
- The effect of nitrogen and phosphorus runoff loss was studied in a mountainous orchard by covering planting green manure experiment in natural rainfall condition. The result showed that mountainous orchard by covering planting green manure Trifolium repens, Lolium perenne and Vicia villosa could decrease the water runoff loss by 24.7%,31.6% and 13.9%, respectively; the amount soil erosion loss decreased by 36.4%,29.6% and 15.7%, respectively, so covering planting green manure in the mountainous orchard was a good technology to reduce water runoff loss and soil erosion. The nitrogen and phosphorus in the runoff water were the main types of soil nutrient losses in the mountainous orchard. The total nitrogen loss decreased by 30.5%,20.6% and 23.9%, and phosphorus loss was decreased by 52.8%,33.3% and 42.3%, respectively, with covering planting green manure. Much more nitrogen was lost than phosphorus from mountainous orchard soil, and the soluble nitrogen accounted for much of total nitrogen loss, primarily in the nitrate form rather than the ammonium form. It was conclude that covering planting green manure was a good way to decrease the nutrient loss es along with runoff and protect the water environment, and at the same time it was beneficial for improving the fruit quality. These results suggest that covering planting green manure is effective to control agricultural non-point source pollution in the Danjiangkou Reservoir area.
- References:
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1900-01-01