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

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

Sustainable Agriculture Research, vol. 12, issue 01

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.

Keywords: Crop; Production/Industries (search for similar items in EconPapers)
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/348316/files/64127807a6e9e.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:ccsesa:348316

Access Statistics for this article

More articles in Sustainable Agriculture Research from Canadian Center of Science and Education
Bibliographic data for series maintained by AgEcon Search (aesearch@umn.edu).