Effects of humic acid and organic matter on quantitative yield and macro-element absorption in rice (Oryza sativa L.)
Journal Title: Agricultural Advances - Year 2016, Vol 5, Issue 6
Abstract
This research intended to study the effects of various levels of humic acid and organic matter forming the substrate for rice seeds of the Tarom cultivar to germinate and for seedlings to grow. For this purpose, an experiment was conducted using split-plots base on randomized complete block design with three replications in the Research Field at Dasht-e Naz in Sari in 2015. Four mixed substrates of clay soil and organic matter (100% soil, 90% soil+10% organic matter, 80% soil+20% organic matter, 70%+ 30% organic matter) were applied as main plot, and four application levels of humic acid (2, 4, 6, and 8 ppt) as sub plot. Results showed that increases in the organic matter content of the substrate improved the seed yield, in which the maximum seed yield obtained in the mixture containing 10% organic matter (1485 g/2m2) and in the treatment of applying humic acid at 6 ppm (1477 g/m2). Moreover, the largest seed yield under the interaction effects of organic matter and humic acid (1800 g/2m2) was achieved at the organic matter content of 10% and humic acid concentration of 6 ppt. Seed nitrogen concentration improved with increases in the organic matter content, with the highest seed nitrogen concentration (1.673%) observed under the interaction effects of 30% organic matter and humic acid at 6 ppt. In addition, when the organic matter content of the substrate was raised, seed phosphorous content improved, with the maximum seed phosphorous content (0.20%) obtained under the interaction effects of 20% organic matter and application of humic acid at 6 ppt.
Authors and Affiliations
Esmaeil Yasari*| Department of Agricultural Sciences, Payame Noor University, Tehran, Iran.
Keywords
Related Articles
- EP ID EP589
- DOI 10.14196/aa.v5i6.2320
- Views 498
- Downloads 25
Effect of planting geometry on yield and yield attributes of aromatic rice genotypes
To evaluate the effects of plant spacing on the growth and yield of aromatic rice varieties, a field experiment was carried out at the Agronomy Filed Laboratory, Bangladesh Agricultural University, Mymensingh, Banglade...
The effect of applied nanozeolite and some plant residues on organic carbon changes in density and soluble fractions - i
The present paper studies organic carbon changes in diffrent fractions in a soil treated with different levels of nanozeolite, alfalfa and wheat residue and incubated for 90 days. The results showed that the amounts of...
The effect of four under tree micro-jet irrigation (180-3000) systems on fruit yield and quality of Nagpur mandarin in C
A field experiment was conducted for evaluation of the different degree under tree automatic micro-jet irrigation systems on yield, quality and productivity of Nagpur mandarin on 12-15 years old bearing Nagpur mandarin...
Allelopathic effect of pistacia khinjuk leaf extracts on chenopodium album, physalis alkekengi and amaranthus retroflexu
A weed is a term applied to any plant considered as one major problem in farm fields and gardens. Weeds cause serious damages to farmers per year, bringing about heavy losses in farm and garden yield. Thus, in order to...
Optimization of zooplankton production from pig dung optimal dose: renewed medium
Present study was realized in the aim to optimize of a renewed medium for the production of zooplankton with pig dung. In fact, the experiment was carried out in triplicate in plastic buckets, grouped together by three...