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Saving Irrigation Water for Winter Wheat with Phosphorus Application in the North China Plain.
- Source :
- Journal of Plant Nutrition; Nov2005, Vol. 28 Issue 11, p2001-2010, 10p
- Publication Year :
- 2005
-
Abstract
- Conserving irrigation water resources is a most important measure for sustainable wheat production in the North China Plain. In the present study, the effect of phosphorus (P) application for saving irrigation water was evaluated. The application of fertilizer P increased nitrogen and phosphorus uptake, shoot biomass, head number, seed number and, consequently, grain yield, and increased soil water use and seasonal evapo-transpiration. The lower the volume of irrigation water applied, the more obvious were these effects. When winter wheat was basally fertilized with 88.5 kg P 2 O 5 /ha and irrigated with 90 mm at the jointing stage, the highest fertilizer P use efficiency, apparent P recovery and net profit (due to irrigation and/or fertilizer P) were obtained. The results suggested that fertilizer P should be used for saving irrigation water resources in the North China Plain. [ABSTRACT FROM AUTHOR]
- Subjects :
- IRRIGATION water
WHEAT
CROP yields
PHOSPHORUS in agriculture
Subjects
Details
- Language :
- English
- ISSN :
- 01904167
- Volume :
- 28
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Journal of Plant Nutrition
- Publication Type :
- Academic Journal
- Accession number :
- 18945910
- Full Text :
- https://doi.org/10.1080/01904160500311078