Evaluation of N2-Fixation Capacity of Leguminous ShrubPlantsEnglish Full Text
SHI SHULIAN; DU LIJUAN, CAO YACHENG and SUN GUOQING(Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Nanjing 210008 China)
Abstract: N2-fixation percentages in the aerial parts of the first and second cuttings of five species of leguminousshrub plants, i.e., Lespedeza formosa （Vog.） Koehne from Jiangxi, Lespedeza pllosa （Thunb.） Sieb et Zucc.,LesPedeza formosa （Vog.） Koehne from Zhejiang, Cajanus cajan （L.） Millsp. and Indigofera pseudotinctoriaMats., of three genera were investigated in terms of pot culture experiment using natural 15N abundancemethod with Bischofia javanica B1., Camptotheca acuminata Decne. and Gardenia jasminoides Ellis asreference plants. Results showed that the N2-fixation percentages were different for the three genera ofleguminous shrubs but almost the same for three species in the same genus. I. pseudotinctoma Mats. hadthe highest N2-fixation percentage in its aerial part, and then followed by Lespedeza and C. cajan. TheN2-fixation percentages in the aerial parts of the plants that had grown for three years tended to be lowerthan those of the onesyear-old plants except L. formosa （Vog.） Koehne from Zhejiang and L. formosa （Vog.）Koehne from Jiangxi.
- Series：
(D) Agriculture
- Subject：
Crop; Animal Husbandry and Veterinary
- Classification Code：
S54
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