Field validation of Nutrient Expert for middle season rice in China

response and agronomic efficiency as compared with soil testing and farmer's practice

IPNI-2014-CHN-NEMR

The Nutrient Expert® (NE) field validation study continued for middle season rice in 2017. Field experiments were set up in the Anhui and Hubei Provinces of China to compare the NE-based fertilizer recommendation method to the recommendations based on soil testing (ST) and farmer’s practice (FP). Read more


Year of initiation:2014
Year of completion:2017

Interpretive Summary

The Nutrient Expert® (NE) field validation study continued for middle season rice in 2017. Field experiments were set up in the Anhui and Hubei Provinces of China to compare the NE-based fertilizer recommendation method to the recommendations based on soil testing (ST) and farmer’s practice (FP).

Nutrient Expert® (NE) field validation continued for middle season rice in 2016. Field experiments were set up in Anhui and Hubei provinces of China to compare the NE-based fertilizer recommendation method to the recommendations based on soil testing, and the farmer’s practice (FP). In Anhui, the average N-P2O5-K2O recommendations were 169-58-95 kg/ha, 194-68-92 kg/ha, and 212-72-59 kg/ha for the NE-based, the soil test-based, and the FP plots, respectively.

Nutrient Expert® (NE) field validation continued within the middle rice cropping system in Hubei and Anhui Provinces. The objective was to test the NE-based fertilizer recommendation method against traditional soil testing and farmer’s practice (FP). Ten field validation experiments were conducted in both Hubei and Anhui in 2015. In Hubei, higher grain yield was observed under NE (9. 5 t/ha) compared to FP (8. 8 t/ha).

The Nutrient Expert(R) (NE) for rice decision support system was first validated in middle-season rice in Hubei and Anhui 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 nine field validation experiments conducted in Hubei in 2014. Higher grain yield was observed under the NE treatment (8. 8 t/ha) compared to FP (8. 5 t/ha).

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Project Leader

Shuanglai Li, Hubei Academy of Agricultural Science


Project Cooperators

Donghai LIU, Hubei Academy of Agricultural Sciences
Lujiu LI, Anhui 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)