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.
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