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Field validation of Nutrient Expert for early and late rice in China

Nutrient Expert Rice was developed to evaluate and validate fertilizer recommendation method based yield response and agronomic efficiency as compared with soil testing and farmer's practice

IPNI-2014-CHN-NEER

Overview Related

Field validation of Nutrient Expert® (NE) fertilizer decision support tool in early and late rice systems in Jiangxi and Hunan Provinces continued in 2017. The objective was to test the NE-based fertilizer recommendation method (NE) against traditional soil testing (ST) and farmers' practice (FP). Field experiments were conducted on five and seven sites each in in Hunan and Jiangxi respectively in early rice and late rice. Read more

Year of initiation:2014
Year of completion:2017

Interpretive Summary

2017

Field validation of Nutrient Expert® (NE) fertilizer decision support tool in early and late rice systems in Jiangxi and Hunan Provinces continued in 2017. The objective was to test the NE-based fertilizer recommendation method (NE) against traditional soil testing (ST) and farmers' practice (FP). Field experiments were conducted on five and seven sites each in in Hunan and Jiangxi respectively in early rice and late rice.

2016
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The field validation of the Nutrient Expert® (NE) fertilizer decision support tool, based on the 4R Nutrient Stewardship Principles, continued in 2016 in the early and late rice systems project in Jiangxi and Hunan Provinces. The objective was to compare the NE-based fertilizer recommendation method with soil test-based fertilizer recommendation and farmers' practice (FP).

2015

Field validation of Nutrient Expert® (NE) continued within early and late rice systems in Jiangxi and Hunan Province in 2015. The objective was to test the NE-based fertilizer recommendation method against soil testing and farmer’s practice (FP). In Jiangxi, 14 field validation experiments on early (7 sites) and late rice (7 sites) were studied. In Hunan, 20 field validation experiments on early (10 sites) and late rice (10 sites) were studied.

2014

The Nutrient Expert(R) (NE) for rice decision support system was first validated in early and late rice system in Guangdong, Jiangxi and Hunan in 2014. The objective was to test the NE-based fertilizer recommendation method as compared to soil testing and farmer’s practice (FP). There were 14 field validation experiments on early (7 sites) and late rice (7 sites) in Guangdong.

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Project Leader

Jun Nie, Hunan Academy of Agri. Sci.

Project Cooperators

Yulin LIAO, Hubei Academy of Agricultural Sciences
Shuanhu TANG, Huangdong Academy of Agricultural Sciences

IPNI Staff

P. He

Location

Asia \ Eastern Asia \ CHN

Topics

4r place, 4r rate, 4r source, 4r time, nutrient expert

rice

Nitrogen (N), Phosphorus (P), Potassium (K)