Scientia Agricultura Sinica ›› 2005, Vol. 38 ›› Issue (04): 709-713 .doi: 10.3864/j.issn.0578-1752.as-2003-1800

• TILLAGE & CULTIVATION·PHYSIOLOGY & ECOLOGY • Previous Articles     Next Articles

Quantitative Evaluation of Output Efficiency in Different Cropping Patterns

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  1. 河北农业大学农学院
  • Received:2003-09-28 Revised:1900-01-01 Online:2005-04-10 Published:2005-04-10

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Abstract: The concept related to yield equivalent and value of output equivalent is proposed. Using various quantitative standards such as land equivalent ratio, yield equivalent, and value of output equivalent, the efficiency of various cropping patterns such as sequential cropping, row cropping, crop rotation was studied. The result showed, comparing with sole cropping, the land use efficiency of sequential cropping, row cropping, crop rotation raised by 62%, 38% and 21%. The unit area yield of sequential cropping, row cropping, crop rotation was 1.63, 1.29 and 1.16 times of sole cropping. The unit area value of double cropping, row cropping was 1.76 and 1.35 times of sole cropping. Through comprehensive analysis, the objective methods for comparison of farm output efficiency are cleared. The paper has provided a theoretical basis for comparison study output efficiency of various cropping patterns in future.

Key words: Sequential cropping, Row cropping, Rotation, Cropping patterns, Quantitative evaluation

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