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Response of Wheat Crop to Potassium Fertilization Under Rain-fed Conditions in Semi-arid Regions

Author

Listed:
  • Asad Mohd Fathi Amin AlKhader
  • Amal Al-Khatib
  • Awad Kaabneh
  • Ali Mahasneh
  • Elaf Obeidat
  • Yahya Bani Khalaf
  • Ahmad Bataineh
  • Isra Salem
  • Shahnaz Absharat

Abstract

Wheat is regarded as one of the major field crops that are mainly grown under rain-fed conditions in Jordan. However, wheat productivity is relatively lower than the world average. This is primarily due to the prevailing drought conditions as a result of poor distribution and low amounts of rainfall. Research studies showed that K can markedly improve wheat yield and quality under water deficit conditions. The objective of the current study was to investigate the effect of soil-applied mineral potassium (K) fertilizer on the yield and growth parameters of two local durum wheat varieties under rain-fed conditions in Jordan. And to determine the rate of K needed to obtain the optimum wheat yield. Two field trials were conducted under rain-fed conditions in two locations in Jordan. Two local durum wheat varieties were grown during two successive growing seasons. Five different rates of K were applied at sowing time. A randomized complete block design with four replications was followed. The results showed that soil K application exhibited a significant effect on wheat crop grain and biological yields of both varieties at the two locations. However, an increasing trend in plant height, harvest index, and thousand-grain weight with increasing K application rate was noticed. Potassium application to soil can alleviate the adverse effects of drought stress on the wheat crop by improving growth and yield attributes.

Suggested Citation

  • Asad Mohd Fathi Amin AlKhader & Amal Al-Khatib & Awad Kaabneh & Ali Mahasneh & Elaf Obeidat & Yahya Bani Khalaf & Ahmad Bataineh & Isra Salem & Shahnaz Absharat, 2023. "Response of Wheat Crop to Potassium Fertilization Under Rain-fed Conditions in Semi-arid Regions," Sustainable Agriculture Research, Canadian Center of Science and Education, vol. 12(1), pages 1-51, April.
    • Handle: RePEc:ibn:sarjnl:v:12:y:2023:i:1:p:51
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    References listed on IDEAS

    as
    1. Wenting Jiang & Xiaohu Liu & Ying Wang & Yu Zhang & Wen Qi, 2018. "Responses to Potassium Application and Economic Optimum K Rate of Maize under Different Soil Indigenous K Supply," Sustainability, MDPI, vol. 10(7), pages 1-10, July.
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    More about this item

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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