JOURNAL OF NATURAL RESOURCES ›› 2012, Vol. 27 ›› Issue (1): 33-40.doi: 10.11849/zrzyxb.2012.01.004

• Resources Utilization and Management • Previous Articles     Next Articles

Effects of Chemical Fertilizer Combined with Crushed Straw Application on Soil Evaporation of Winter Wheat

DONG Qin-ge1,3, FENG Hao1,2, DU Jian2   

  1. 1. Research Center of Soil and Water Conservation and Ecological Environment, CAS, Yangling 712100, China;
    2. Institute of Soil and Water Conservation, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China;
    3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-05-26 Revised:2011-05-24 Online:2012-01-20 Published:2012-01-20

Abstract: The Micro-lysimeters were employed to determine the process of soil evaporation of winter wheat at its growth stages under chemical fertilizer combined with crushed straw (S) and current chemical fertilizer (R). The effects of S on soil evaporation were investigated in the wheat field,and the differences of soil evaporation were studied among seven varieties of winter wheat. The results showed that the effects of S on soil evaporation varied to a certain degree at different growing stages. The daily soil evaporation existed the same law under S and R and the accumulative soil evaporation under S was lower than the R's. The soil evaporation of different winter wheat varieties was inhibited significantly by S, and the ratios of restraining soil evaporation ranged from 8.02% to 11.60%; the amount of evaporation about 12 mm was translated into transpiration owing to the use of S. The soil evaporation of different varieties had no obvious difference and variation.

Key words: chemical fertilizer, crushed straw, winter wheat, soil evaporation

CLC Number: 

  • S156.2