[1]LIANG Jin-xiu,ZHAO Ying,GUO Xin-nian,et al.Effect of Fertilization and Sprinkling Irrigation on the Yield of Spring Maize and Soil Water and Salt Movement in Light Sierozems[J].Research of Soil and Water Conservation,2014,21(05):126-131.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 05
Page number:
126-131
Column:
Public date:
2014-10-28
- Title:
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Effect of Fertilization and Sprinkling Irrigation on the Yield of Spring Maize and Soil Water and Salt Movement in Light Sierozems
- Author(s):
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LIANG Jin-xiu, ZHAO Ying, GUO Xin-nian, ZHOU Tao
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Institute of Agricultural Resources and Environment, Ningxia Academy of Agriculture and Forestry, Yinchuan 750002, China
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- Keywords:
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sprinkling irrigation and fertilization; light sierozems; spring maize; yield; soil water and salt movement
- CLC:
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S513;S152.7
- DOI:
-
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- Abstract:
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A field experiment was conducted in light sierozems soil to study the effects of flood irrigation, sprinkling irrigation and different N, P2O5, K2 O application rates on the yield of spring maize and the dynamics of soil water and salt in the Yellow River Irrigation Region. The results showed that the yield of spring maize ranged from 6.9 to 13.2 t/hm2, and coefficient of variation of ranged from 2.4% to 13.6%. In contrast to treatment CK (no any fertilizers), there were significant differences (P < 0.05) found in different combination of N, P 2O5, K2 O rates (except in treatment of no N fertilizer), the yield increment ranged from 12.7% to 92.5%. Quadratic relationships were used to describe the relations between N, P 2O5, K2 O rates and the spring maize yield, and the yield increasing effect was N > P2O5 > K2 O. During the growing period of spring maize, sprinkling irrigation was benefit for soil water distribution uniformity in both 0—20 cm and 20-50 cm soil depth, but soil water moved to deep soil of 50—80 cm. Soil salt always accumulated in topsoil of 0—20 cm under the sprinkling irrigation condition, and the highest soil salt content was found with 2.11 g/kg. However, soil salt moved to deep soil of 50—80 cm under the flood irrigation condition, and which ranged from 0.53 to 1.07 g/kg. Therefore, sprinkling irrigation and combination applying of N, P 2O5, K2 O fertilizers could significantly increase crop yield, but salt movement from topsoil with sprinkling irrigation was less than that with flood irrigation.