Nutrient Management and Optimized Fertilization on Maize in Heilongjiang Province

The project has been focusing on Nutrient Expert based fertilizer recommendation since 2011

IPNI-2006-CHN-HL18

Nutrient Expert(R) (NE) is a computer-based decision support tool developed to assist local experts to formulate fertilizer recommendations for maize. It is based on yield response and agronomic efficiency (AE) and is especially useful when soil testing is not available or timely. This study was continued in 2014 to validate NE-based fertilizer recommendations for spring maize in farmer fields and compare them with farmer fertilizer practice (FP). Read more


Year of initiation:2006
Year of completion:2014
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Interpretive Summary

Nutrient Expert(R) (NE) is a computer-based decision support tool developed to assist local experts to formulate fertilizer recommendations for maize. It is based on yield response and agronomic efficiency (AE) and is especially useful when soil testing is not available or timely. This study was continued in 2014 to validate NE-based fertilizer recommendations for spring maize in farmer fields and compare them with farmer fertilizer practice (FP).

Nutrient Expert® (NE) is a computer-based decision support tool developed to assist local experts to formulate fertilizer guidelines for maize. It is based on the principles of site-specific nutrient management (SSNM). The tool is especially useful when soil testing facilities are not easily accessible, which makes timely fertilizer recommendation difficult.

Nutrient Expert®-based Fertilizer Recommendations for Spring Maize in Heilongjiang, 2012. Nutrient Expert® (NE) is a new, computer-based decision support tool developed to assist local experts to formulate fertilizer guidelines for maize (corn), and is based on the principles of site-specific nutrient management (SSNM). This tool comes in handy, especially when soil testing facilities are not easily accessible, which makes timely fertilizer recommendations difficult.

Nutrient Expert-based Fertilizer Recommendation for Spring Maize in Heilongjiang, 2011. Nutrient Expert (NE) is a new, computer-based decision support tool developed to assist local experts to formulate fertilizer guidelines for maize (corn) in real-time, and is based on the principles of site-specific nutrient management (SSNM). This tool comes in handy, especially when soil testing facilities are not easily accessible, which makes timely fertilizer recommendations difficult.

Nutrient Management for Maize in Heilongjiang Province, 2010 Maize field experiments were conducted in Bin County and Zhaoyuan County, Heilongjiang Province, to study the effect of balanced use of NPK fertilizer integrated with S, Zn, and B nutrition within an optimum (OPT) treatment providing 165-58-75-135-25-8 kg N-P2O5-K2O-gypsum-zinc sulfate-boric acid/ha.

Nutrient Limiting Factors for Maize, Soybean, and Rice Production in Heilongjiang, 2009 Field experiments were conducted to study yield limiting nutrients within main production centers for maize (four sites), soybean (five sites), and rice (three sites) in the province. Optimum (OPT) treatments providing nutrients adjusted to levels guided by soil testing were compared against site-specific sets of nutrient omission plots. In maize, the best yields, ranging between 8. 5 to 12.

Soil Nutrient Management and Balanced Fertilization in Heilongjiang, 2008 Maize experiments conducted in Shuangcheng, Bingxian, and Gannan counties indicated that N application at the rate of 50 to 200 kg/ha increased maize yield by 7 to 73% with an average increase of 31%, and an average net benefit from N application of 1,810 Yuan/ha (US$266/ha). The proper N rate for maximum economic yield at these sites ranged between 100 to 180 kg N/ha, with an expected yield increase of 24 to 73%.

Soil Nutrient Management and Balanced Fertilization in Heilongjiang, 2007 Corn yields at Shuangcheng were highest at 9. 3 t/ha under the balanced “optimum” (OPT) of 160-68-90 kg N-P2O5-K2O/ha plus 135 kg gypsum/ha and 20 kg zinc sulfate (ZnSO4)/ha. Treatments omitting N, P, K, S, and zinc (Zn) produced 26%, 26%, 21%, 11%, and 21% less yield, respectively.

Soil Nutrient Management and Balanced Fertilization for Selected Crops in Heilongjiang, 2006 Soybean, corn, and rice are three major crops in Heilongjiang Province. However, fertilization on these crops is often inadequate and imbalanced. In 2006, field experiments were conducted in Shuangcheng County on spring corn, Hailun County on soybean, and Huachuan County on rice, all with the common objective of promoting balanced fertilization and raising farmers’ income.

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Publications

cover
Economics of Fertilizer Application to Maize in North China Ping He, Jiagui Xie, Yuying Li, Yilun Wang, Liangliang Jia, Rongzong Cui, Hongting Wang, Yuehua Xing and Kegang Sun
Better Crops With Plant Food
2014-1, page #26

Project Leader

Li Yuying, Heilongjiang Academy of Agricultural Sciences


Project Cooperators

LIU Shuangquan


IPNI Staff

P. He


Location

Asia \ Eastern Asia \ CHN \ Heilongjiang


Topics

4r place, 4r rate, 4r source, 4r time, best management practices

maize