[1]CHEN Yi-bing,LIN Chao-wen,HUANG Jing-jing.Study on Synthetical Benefit of Alley Cropping and Potassium Application[J].Research of Soil and Water Conservation,2006,13(03):47-49.
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Study on Synthetical Benefit of Alley Cropping and Potassium Application
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
13
Number of periods:
2006年03期
Page number:
47-49
Column:
Public date:
1900-01-01
- Title:
- Study on Synthetical Benefit of Alley Cropping and Potassium Application
- Keywords:
- potassium application; alley cropping; system energy
- CLC:
- S143.3;S181
- DOI:
- -
- Abstract:
- The effect of hedgerow and K application on land productivity on sloping lands are studied by using energy analysis.The result shows that cropping system of "hedgerow+contour cultivation" reduces soil and water losses by 66.0%, while output energy, total input energy, organic input energy and efficiency of light energy utilization of system increases (17.0%), 50.0%, 117.6% and 17.6%, respectively.The energy input-output ratio of cropping system increases 16.1%.During the middle and later growing stage, the leaf area of groundnut and sweet potato increases 3.8% and 10.2%, respectively.Potassium application based on alley cropping improves the growth of crops, the leaf area of two crops increases 6.3% and 22.4%, respectively, and value 38.3%, net return 46.6%, inputoutput ratio 20.9%, labor productivity 20.3%.Therefore, there is significant positive interaction between alley cropping system and potassium fertilization.
- References:
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Last Update:
1900-01-01