Nutrient management and balanced fertilization on main crops in Gansu province

IPNI-2006-CHN-GS3

Nutrient Management and Balanced Fertilization in Gansu, 2009 Crop yields in Gansu are mainly limited by water supply, so nutrient management practices must consider the available water regime. Research on nutrient responses and efficiencies to N, P, and K fertilizers were investigated in spring maize, potato, wheat, and soybean in 2009. Read more


Year of initiation:2006
Year of completion:2009

Interpretive Summary

Nutrient Management and Balanced Fertilization in Gansu, 2009 Crop yields in Gansu are mainly limited by water supply, so nutrient management practices must consider the available water regime. Research on nutrient responses and efficiencies to N, P, and K fertilizers were investigated in spring maize, potato, wheat, and soybean in 2009.

Soil Nutrient Management and Balanced Fertilization in Gansu, 2008 In 2008, research on crop response to N, P, and K fertilizers, nutrient uptake, and nutrient use efficiency was investigated in spring corn, potato, and sunflower in the typically arid to semiarid climate of Gansu.

Soil Nutrient Management and Balanced Fertilization in Gansu, 2007 In 2007, field trials and demonstrations of balanced nutrient management in wheat, corn, barley, and potato were conducted in Wuwei City and Dingxi County. In Wuwei, yield of corn in the - N and - K treatments was 1,655 kg/ha and 778 kg/ha lower, or 15% and 6%, than that achieved with the complete treatment of 300-120-150 kg N-P2O5-K2O/ha. No P response was observed due to high available soil P (34 mg/l) at the site.

Soil Nutrient Management and Balanced Fertilization in Gansu, 2006 In 2006, the effect of soil test-based fertilizer recommendations on barley, and yield-limiting factors in seed melon, were investigated in Jinchang City. Verification trials for fertilizer recommendations in potato and corn were arranged in Zhangjiachuan County and Dingxi City. Yield of barley increased by 1,325 kg/ha (28%) over the K omission treatment when 150 kg K2O/ha was applied along with 225 kg N/ha and 225 kg P2O5/ha.

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Project Leader

Tianwen Guo, Soil and Fertilizer Institute, Gansu Academy of Agricultural Sciences


Project Cooperators

Lifang Lai
Zhiqiao Hu
Chengbao Wang


IPNI Staff

S. Li


Location

Asia \ Eastern Asia \ CHN \ Gansu


Topics

nutrient management

maize, potato, wheat

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