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Journal of Zhejiang University SCIENCE A 2001 Vol.2 No.2 P.232-236

http://doi.org/10.1631/jzus.2001.0232


MAIN FACTORS CONTRIBUTING TO THE INCREASE OF COCOON OUTPUT IN ZHEJIANG PROVINCE


Author(s):  Gu Guoda, Zhang Lei, Zhou Jinqian

Affiliation(s):  Dept.of Sericulture & Apiculture, of Zhejiang University, Hangzhou 310029, China; more

Corresponding email(s): 

Key Words:  cocoon output increase, factors contributing to cocoon output


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Gu Guoda, Zhang Lei, Zhou Jinqian. MAIN FACTORS CONTRIBUTING TO THE INCREASE OF COCOON OUTPUT IN ZHEJIANG PROVINCE[J]. Journal of Zhejiang University Science A, 2001, 2(2): 232-236.

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Abstract: 
Three factors contributing to the increase of cocoon output are: the cocoon output per box, the area of mulberry field, and the egg amount raised per unit area of mulberry field. These three main factors were analyzed based on the statistical data on cocoon output collected in Zhejiang Province from 1963 to 1998, and the proportions of the contribution to the increase of cocoon output were calculated by the factorization method. The results showed that the importance of the factors in increasing cocoon output was in the order: egg amount raised per unit area of mulberry field > cocoon output per box > area of mulberry field.

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Reference

[1] An, H.P., Wang, R.P., 1999. An analysis of the causal factors to agricultural development in China's less developed regions. Chinese Rural Economy, 7:62-65 (in Chinese).

[2] Gu, G.D., Jin,P.H., Wang, Z.R., 1999. Comparison on technological and economical levels of China's silk-cocoon raising industry with other main producing countries. Chinese Rural Economy,11:52-55 (in Chinese).

[3] Shujiro, S., 1991. Technological Progress in Japanese Agriculture. Association of Agriculture & Forestry Statistics, p.20-22 (in Japanese).

[4] Wang, P.C., 1999. Brilliant achievements made in the past fifty years. Bulletin of Sericulture, 30(3): 1-4.

[5] Yang, J.H., Jiang, S.R., Wang, P.C., et al., 1995. Innovation in the system of mulberry culture techniques in Zhejiang Province. China Sericulture, 2:14-16 (in Chinese).

[6] Zhu, D.F., Pang, G.L., He, X.M., 1997. Factors of rice production increase over the years in China and strategy for developing rice. China Rice,1: 3-6 (in Chinese).

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