LI You-jun, HUANG Ming, WU Jin-zhi, et al. Effects of Different Tillage on Utilization and Run-Off of Water and Nutrient in Sloping Farmland of Yuxi Dryland Area[J]. 2006, 20(2): 42-45.
LI You-jun, HUANG Ming, WU Jin-zhi, et al. Effects of Different Tillage on Utilization and Run-Off of Water and Nutrient in Sloping Farmland of Yuxi Dryland Area[J]. 2006, 20(2): 42-45.DOI:
In order to filtrate the feasible tillage technology in sloping farmland of Yuxi dryland area
four tillages including reduce tillage
no-till
subsoiling tillage and conventional tillage were studied on the content of soil water and soil nutrient and its utilization and run off complexion.The results showed as following:with subsoiling tillage and no-till
the soil water storage were increased and the content of the soil organic quality
N
P and K content were evidently higher than conventional tillage
especially the effects of the whole N and alkali solution N in upper soil layer and the available P and soon effect K in deeper soil layer were more obvious
and the times and content of water run-off were reduced effectively
and soil nutrient run-off were reduced too.Therefore
the use efficiency of soil water and the production efficiency of soil nutrient can be improved after with subsoiling tillage and no-till.Compared with conventional tillage
the water use efficiency
the N
P
K production efficiency
the yield of winter wheat and the economic benefit increased by 16.37%
17.40%
19.80%
19.44%
23.22% and 29.36% respectively after with subsoiling tillage and those items also improved by 10.62%