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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (7): 8-16.doi: 10.11707/j.1001-7488.20140702

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Effects of Three Soil Moisture Conservation Measures on Dynamics of Mineral Nutrition Elements in Ziziphus jujuba ‘Linyilizao’ Leaves and Its Yield

Pu Jun1, Xu Fuli1,2, Wang Weiling1   

  1. 1. College of Life Sciences, Northwest A&F University Yangling 712100;
    2. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resource Northwest A&F University Yangling 712100
  • Received:2013-09-11 Revised:2014-03-11 Online:2014-07-25 Published:2014-07-04
  • Contact: 王渭玲

Abstract:

To investigate the effect of soil moisture conservation measures and drip irrigation on dynamics of mineral nutrition elements in Ziziphus jujuba‘Linyilizao’ (‘Linyilizao’) leaves, an experiment was conducted in loess hilly regions. The seasonal dynamic changes of nine mineral nutrition elements (including N, P, K, Ca, Mg, Cu, Mn, Zn and Fe) in‘Linyilizao’ leaves under six treatments,i.e. A.drip irrigation and fertilizer, B.drip irrigation, C.straw mulching and fertilizer, D.straw mulching, E.fertilizer, and F.control) were examined. The results showed that the contents of N, P, K, Mg, Mn and Cu elements were increased under drip irrigation and fertilizer treatment. The contents of P, K, Mn, Cu and Zn were lowest in straw mulching treatment, which were improved with fertilizer addition. With the exception of Mg element, contents of the other eight elements were relatively high with fertilizer treatment. The similar dynamics of mineral elements were observed in the growth period. N, P and K contents showed a trend of decrease while Ca, and Mn contents increased; Mg content rose to a stable level, then experienced fall; Zn and Cu contents fluctuated. Fe content increased and then decreased. Accumulation of mineral elements in leaves showed a synergistic or antagonism effect, and the different moisture conservation measures and drip irrigation changed the correlation degree between the elements. The‘Linyilizao’ yield in different treatments exhibited an order of drip irrigation and fertilizer > drip irrigation > straw mulching and fertilizer > fertilizer > straw mulching> control, and the yield of drip irrigation and fertilizer was increased from 47.47% to 143.67% compared with other treatments.

Key words: Ziziphus jujuba‘Linyilizao’, moisture conservation measure, drip irrigation, mineral nutrition element, dynamic

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