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Field validation of Nutrient Expert Soybean in China

Nutrient Expert Soybean 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-NES

Overview Related

The Nutrient Expert (NE) fertilizer decision support system for soybean was calibrated based on collected data from Henan, Anhui, Jiangsu, and Sichuan Provinces in China. The objective was to compare the NE-based fertilizer recommendation with traditional soil test (ST)-based fertilizer application and farmer's practice (FP) on soybean yield and nutrient use efficiency. Read more

Year of initiation:2014
Year of completion:2016

Interpretive Summary

2017

The Nutrient Expert (NE) fertilizer decision support system for soybean was calibrated based on collected data from Henan, Anhui, Jiangsu, and Sichuan Provinces in China. The objective was to compare the NE-based fertilizer recommendation with traditional soil test (ST)-based fertilizer application and farmer's practice (FP) on soybean yield and nutrient use efficiency.

2016
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The objective of this study was to understand the effect of Nutrient Expert® (NE)-based fertilizer recommendation, in combination with rhizobium culture seed treatment, on soybean yield and nitrogen use efficiency in Heilongjiang, Jilin, and Liaoning provinces in China. The study had five on-farm validation experiments in the three provinces.

2015

The objective of this study is to validate Nutrient Expert® (NE)-based fertilizer recommendation for soybean grown in Heilongjiang, Jilin, Liaoning, and Inner Mongolia. Results are directly compared against those obtained with farmer practice (FP) and a soil test-based recommendation. This study had 11 field validation experiments in each province. Each individual site had a site-specific recommendation, but NE-based plots received an average of 40-55-53 kg N-P2O5-K2O/ha.

2014

This study was conducted to validate the Nutrient Expert(R) (NE)-based fertilizer recommendation for soybean in farmer fields and compare it against farmer fertilization practice (FP) and soil test-based fertilizer recommendation. 2014 was the first year for NE Soybean field validation. The study had 12 field validation experiments in Heilongjiang.

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Publications

cover
Estimating Nutrient Uptake Requirements for Soybean Fuqiang Yang, Dan Wei, and Ping He
Better Crops With Plant Food
2018-1, page #8

Project Leader

Dan Wei, Heilongjiang Academy of Agricultural Sciences

Project Cooperators

Mr. Wei WANG, Heilongjiang Academy of Agricultural Sciences

IPNI Staff

P. He

Location

Asia \ Eastern Asia \ CHN

Topics

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

soybean

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