Applying grey correlative degree analysis to comprehensively evaluate the influence of different defoliation intensities on nutritional value of Amorpha fruticosa

Abstract

Abstract: The influences of nutritional quality on Amorpha fruticosa were studied using five simulated defoliation intensities (20%, 40%, 60%, 80%, and 100% proportion of aboveground vegetation). The grey correlation degree method was used to comprehensively analyze seven nutritional indexes: crude ash (Ash), neutral detergent fiber (NDF), acid detergent fiber (ADF), water-soluble sugar (WSC), crude protein (CP), phosphorus (P), and potassium (K). When the defoliation intensity of A. fruticosa was 40%, the weighted grey correlation degree of leaves and stems was 0.781 2 and 0.651 3, respectively. This was larger than that of the other defoliation intensities. A. fruticosa had the best nutritional value with the 40% defoliation intensity treatment.

CLC Number:

GUO Xia, LIU Xue-yun, ZHOU Zhi-yu, LIANG Kun-lun, WANG Rui. Applying grey correlative degree analysis to comprehensively evaluate the influence of different defoliation intensities on nutritional value of Amorpha fruticosa[J]. Acta Prataculturae Sinica, 2012, 21(2): 196-204.

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