Vol. 11, Issue 10 (2022)

Author(s):
Swati H Patel and MB Viradiya

Abstract:
Organic manures, which were perhaps the main sources of plant nutrients in traditional agriculture, receive less emphasis with the advent of high analysis chemical fertilizers. The application of FYM in the soil helps in increasing the fertility of the soil as physical condition including its water holding capacity. Microorganisms play a key role in the natural K cycle. K-mobilizing bacteria (KMB) are able to release potassium from insoluble minerals. The considerable populations of KMBs are present in rhizospheric soils which promote the plant growth. Potassium is the fourth most abundant nutrient constituting about 2.5 per cent of the lithosphere and exists in insoluble forms as rocks and silicate minerals, resulting in very low concentrations of soluble potassium in the soil for plant growth and development. Therefore experiment comprising twelve-treatment combinations of FYM, potassium mobilizing bacteria (KMB) and potassium (K). It was plotted out in Randomized Block Design (factorial) with three replications. The treatment comprising of two levels of FYM viz., 0 t ha^-1 (F0) and 10 t ha^-1 (F1) and two levels of Potassium Mobilizing Bacteria viz., without KMB (KMB0) and with KMB (KMB1) and three levels of potassium viz., 0 kg K2O ha^-1 (K0), 20 kg K2O ha^-1 (K1) and 40 kg K2O ha^-1 (K2). The application of FYM showed that increased K content and uptake by grain and straw, Zn content and uptake by grain, available potassium in soil at 30 and 45 DAS and KMB count at harvest. Application of KMB recorded significantly highest K content and uptake by grain and straw and KMB count at harvest. With potassium application increased K content in straw and uptake by grain, Zn content in grain and straw as well as uptake by straw and KMB count in soil after harvest. Interaction effects on Potassium (39.83 kg ha^-1) and Zn uptake by wheat grain was obtained with the treatment combination F1KMB1K2 than other treatments, except treatment combination F1KMB1K0 in case of zinc uptake by wheat grain.