Effect of long-term application of potash and straw return on wheat yield and soil K balance in Qinghai province

IPNI-2010-CHN-QH4

Effect of Long-term Application of Potash and Straw Return on Wheat Yield and Soil K Balance in Qinghai Province, 2012 This long-term field experiment (conducted since 1993) with irrigated spring wheat northeastern Xining City of Qinghai Province has six treatments including: NP, NPK, NP with 50% straw return (NP+50% ST), NP with 100% straw return (NP+100% ST), NPK with 50% straw return (NPK+50% ST), and NPK with 100% straw return (NPK+100% ST). Read more


Year of initiation:2010
Year of completion:2012

Interpretive Summary

Effect of Long-term Application of Potash and Straw Return on Wheat Yield and Soil K Balance in Qinghai Province, 2012 This long-term field experiment (conducted since 1993) with irrigated spring wheat northeastern Xining City of Qinghai Province has six treatments including: NP, NPK, NP with 50% straw return (NP+50% ST), NP with 100% straw return (NP+100% ST), NPK with 50% straw return (NPK+50% ST), and NPK with 100% straw return (NPK+100% ST).

Effect of Long-term Application of Potash and Straw Return on Wheat Yield and Soil Potassium Balance in Qinghai Province, 2011 This fixed-site, irrigated spring wheat experiment is on a loamy, Chestnut soil site in northeastern Xining City of Qinghai Province since 1993. The study is evaluating the long-term agronomic effects of NP and NPK treatments used in combination with complete, 50%, and zero straw recycling. In 2011, after 19 years of study, wheat yield of NP treatment was 5.

Effect of Long-term Application of Potash and Straw Recycling on Wheat Yield and Soil Potassium Balance in Qinghai, 2010 This fixed-site, irrigated spring wheat experiment has been conducted on a loamy, Chestnut soil site in northeastern Xining City of Qinghai Province since 1993. The study is evaluating the long-term agronomic effects of NP and NPK treatments used in combination with complete, 50%, and zero straw recycling. In 2010, after 18 years of study, wheat yield with NP was 7.

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Project Leader

Zhanquan Chen, Soil and Fertilizer Institute, Qinghai Academy of Agriculture and Forestry


Project Cooperators

Zhanquan Chen
Yali Zhang


IPNI Staff

S. Li


Location

Asia \ Eastern Asia \ CHN \ Qinghai


Topics

nutrient management

wheat

Potassium (K)