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Influence of Humic Substance and Phosphorus Fertilizers on Nutrient Assimilation by Aerobic Rice in Acid Soil

Indian Agricultural Research Journals

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Title Influence of Humic Substance and Phosphorus Fertilizers on Nutrient Assimilation by Aerobic Rice in Acid Soil
 
Creator R. Sagar
G.N. Thippeshappa
G.G. Kadalli
Ganapathi
K.T. Gurumurhty
M.S. Nandish
M. Dinesh Kumar
 
Subject Nutrient uptake
humic substance
FYM
aerobic rice
acid soil
 
Description The study was conducted in Agricultural and Horticultural Research Station, Tarikere taluk, Karnataka, India and the objective was to ascertain the effects of humic substance on aerobic rice’s capacity to assimilate nutrients when used in combination with various phosphorus (P) fertilizers of variable solubilities and planted in acidic soil. The humic substance used for treatment application was extracted from well decomposed farmyard manure (FYM). The treatment getting rock phosphate (RP) in combination with humic substance @ 75 L ha-1 was found to have a significantly greater nutritional content in grain and straw of aerobic rice than rest of the treatments, except for sulphur (S), which was significantly higher in T7 treatment having single superphosphate (SSP) and humic substance @ 75 L ha-1. In turn, the treatment with the application of RP along with humic substance @ 75 L ha-1 showed a significantly higher uptake of primary, secondary and micronutrients by grain and straw of aerobic rice over all other treatments and it was followed by RP + humic substance @ 50 L ha-1 treatment compared to P fertilizers without humic substance treatments. With an increase in humic substance levels, aerobic rice was able to absorb more of nutrients. The study clearly demonstrated that crop nutrient demand in acid soils could be met with the use of humic substance.
 
Publisher Indian Society of Soil Science
 
Date 2024-03-03
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/JISSS/article/view/149144
 
Source Journal of the Indian Society of Soil Science; Vol. 71 No. 4 (2023): Journal of the Indian Society of Soil Science; 388-395
0974-0228
0019-638X
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/JISSS/article/view/149144/54032