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Nitrate leaching loss from soil and nutrient utilization by tomato in protected field(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
Vol.07 No.2
Page:
126-129
Research Field:
Reviews
Publishing date:

Info

Title:
Nitrate leaching loss from soil and nutrient utilization by tomato in protected field
Author(s):
LI Junlianget al.
(1 Department of Plant Nutrition, China Agricultural University, Beijing100094, China) (2 Department of Agronomy, Laiyang Agricultural College, Shandong265200, China)
Keywords:
Keywords tomato protected field fertilizer utilization N leaching loss
CLC:
-
PACS:
DOI:
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DocumentCode:

Abstract:
Abstract The field experiment was conducted in Shouguang City, Shandong Province. Effects of different complex fertilizer types, nutrient utilization by tomato and nitrate leaching in soil layer were studied in the protected field. The results indicated that tomato yields slightly increased by 12.7%~18.4% with different types of complex fertilizers due to relatively high soil fertility, and no significant differences were found among the treatments with different application rates. The efficiencies of fertilizer utilization were so low that nearly 90% of applied N and P could not be used by tomato. Excessive water and fertilizer input in long term could result in nitrate leaching loss in protected vegetable field. Fig 2, Tab 3, Ref 11

References

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Last Update: 2002-10-31