Zinc dynamics in an Alfisol as influenced by levels of farm yard manure
Journal Title: Journal of Applied and Natural Science - Year 2016, Vol 8, Issue 1
Abstract
Field experiments were conducted on sandy loam soil at Shimoga, Karnataka, India to study the influence of FYM application on dynamics of zinc in an Alfisol under fingermillet (Eleusine coracana L.) crop. Three levels of FYM viz., 7.5, 15.0 and 22.5 t/ha with and without recommended dose of fertilizer (RDF) were evaluated for the purpose. Changes in available (DTPA extractable) and different fractions of Zn in soil were monitored. Application of FYM at all levels, with or without fertilizers, caused significant (p<0.05) increase in DTPA-Zn, the effect being more pronounced at higher levels. Maximum DTPA- zinc (0.97 mg/kg) in soil was observed in the treatment RDF+FYM@ 22.5 t/ha. Increase in level of FYM application increased the water soluble, sorbed, easily reducible manganese bound, carbonate bound and organic bound fractions of Zn significantly (p<0.05), but decreased residual fractions in soil compared to that of RDF and absolute control treatments. All the fractions except residual one had positive and significant correlation with each other indicating the existence of a dynamic equilibrium among them. DTPA-Zn was positively and significantly (p<0.01) correlated with soil OC, WS, SORB, ERMn, CA, OM and Fe and Alox fractions (r= 0.683,0.603,0.683,0.702,0.777,0.678 and 0.476 respectively) in soil. The treatment receiving RDF+FYM @ 22.5 t/ha excelled over others with respect to grain and straw yield (3.028 t/ha and 1.890 t/ha respectively) of fingermillet. Thus, keeping in view the availability of Zn in soil and yield of fingermillet, FYM @22.5 t/ha supplemented with RDF was found to be the superior one.
Authors and Affiliations
M. Chakraborty, H. M. Chidanandappa, B. C. Dhananjaya, D. Padhan
Keywords
Related Articles
- EP ID EP284432
- DOI -
- Views 89
- Downloads 0
Heterosis analysis in relation to drought tolerance in rice land races and their genotypes
An experiment was conducted in rice to study the heterosis for drought tolerance and grain yield in 24 hybrids developed from six landraces viz., Kallurundaikar, Kuliadichan, Kuruvaikalangiam, Mattaikar, Nootripathu and...
Increase in wheat production through management of abiotic stresses : A review
About 9% of area on earth is under crops out of which 91% is under various stresses. On an average, about 50% yield losses are due to abiotic stresses mostly due to high temperature (20%), low temperature (7%), salinity...
A study on water hyacinth Eichhornia crassipes as oil sorbent
The sorption of diesel, lubricant and castor oils onto different parts (root, stem and leaf) of the dry biomass water hyacinth was studied at the laboratory scale. The parts of the aquapyte water hyacinth (Eichhornia Cra...
Variability for seed oil content and seedling traits in Pongamia pinnata (L.) Pierre
Twenty three CPTs (Candidate Plus Trees) of Pongamia pinnata were selected from different agro-climatic conditions of Haryana state of India and were assessed to identify the elite planting material for improvement of th...
Effect of Aloe vera juice on the hepatotoxi City induced by isoniazid drug
Aloe vera leaves were gently pressed and the juice obtained was collected in a sterile container. The yield was calculated based on weight of the extract compared to the weight of the leaves. Twenty (20) Wistar strain ra...