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VOL. 9, ISSUE 7 (2024)
Foliar application of alternative potassium (K) source on growth and yield of rice (Oryza sativa l.)
Authors
W G A S Costa, T Geretharan, S Srikrishnah
Abstract
Yellowing paddy lands due to the Potassium (K) deficiency was a recent
problem in Sri Lanka caused by the non-application of Muriate of Potash
fertilizer. Hence, the purpose of the current study is to overcome K deficiency
by foliar application of a commercially available liquid K source that contains
7,500 ppm of K and to discover its effect on the growth and yield of the rice
variety Bg 300. A polybag experiment was carried out at the Crop farm of
Eastern University, Sri Lanka using completely randomized design (CRD) with
four treatments and six replicates. Control, MOP application, 25% and 50% of
liquid K solution foliar application were the four treatments used. Both the
foliar applications resulted in statistically similar effects to the MOP
fertilization on plant height, chlorophyll content, leaf K content and number
of spikelets in a panicle. The results suggested that K was successfully
absorbed by the leaves and MOP usage can be reduced through the foliar
application of liquid K fertilizer. Applying 25% of the K solution is the best
option to obtain a higher net benefit.
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Pages:28-31
How to cite this article:
W G A S Costa, T Geretharan, S Srikrishnah "Foliar application of alternative potassium (K) source on growth and yield of rice (<i>Oryza sativa</i> l.)". International Journal of Botany Studies, Vol 9, Issue 7, 2024, Pages 28-31
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