Mechanisms of environmental factors affecting uptake and utilization of N and P by vegetable crops

IPNI-2010-CHN-ZJ25

Vegetable is characterized with high harvest index, high nutritional requirements, and both high input and output. Fertilization is a key agricultural measure for vegetable production. However, overfertilization was very common nowadays in vegetable production in China. Read more


Year of initiation:2010
Year of completion:2010

Interpretive Summary

Mechanisms of Environmental Factors Affecting Uptake and Utilization of Nitrogen and Phosphorus by Vegetable Crops, 2012 This project was implemented by Zhejiang University. In 2012, soil samples from a Chinese Cambisol under three cropping systems were collected vertically to a depth of 200 cm and then analyzed to evaluate the effect of manure application on soil P quantities, forms and the potential environmental implications under different land use patterns.

Environmental Factors Affecting Uptake and Utilization of Nitrogen and Phosphorus by Vegetable Crops, 2011 The intensive vegetable cultivation using high fertilizer input were selected to study the effects of environmental factors on transformation, uptake, and utilization of N and P in soils. The objective of the study was to provide a theoretical basis and technical support for improving fertilizer use efficiency.

Effects and Mechanisms of Environmental Factors on Uptake and Utilization of Nitrogen and Phosphorus in Vegetable Crops, 2010 Vegetables are characterized with both high harvest index and high nutritional requirements. Fertilization is a key agricultural measure for vegetable production; however, over-fertilization has been very common in China.

Mechanisms of Environmental Factors Affecting Uptake and Utilization of Nitrogen and Phosphorus by Vegetables, 2009 The results from 2009 showed that contents of ammonium (NH4+-N), nitrate (NO3--N), and total inorganic N increased first and then decreased in the incubation soils amended with manure and urea. Temperature and moisture regime had a significant effect on N mineralization rate and nitrification rate of the soils.

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Updates & Reports

2010

Project Description


Project Leader

Lin Xian-yong, Zhejiang University


Project Cooperators

Zhang Yong-song
Zhang Qichun


IPNI Staff

F. Chen


Location

Asia \ Eastern Asia \ CHN \ Zhejiang


Topics

environment

vegetable

Nitrogen (N), Phosphorus (P)