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Zubair, Mohd
- Depth-Wise Distribution of Different Forms of Nitrogen in Apple Growing Soils of Pulwama District of Kashmir Valley
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Authors
Affiliations
1 Krishi Vigyan Kendra/Extension Training Centre/FMT (SKUAST), Malangpora, Pulwama (J&K), IN
1 Krishi Vigyan Kendra/Extension Training Centre/FMT (SKUAST), Malangpora, Pulwama (J&K), IN
Source
Agriculture Update, Vol 12, No 1 (2017), Pagination: 67-70Abstract
Depth-wise distribution of different fractions of nitrogen in some selective sites (soil depths) of district Pulwama of Kashmir valley was studied. In all the soil profiles nitrogen fractions (forms) decreased with increase in depth except the fixed NH4-N which increased with decreased depth. Organic nitrogen showed high significant positive correlations with total nitrogen (r=0.987***), organic nitrogen decreased with depth while the fixed NH4-N increased and these two fraction were also showed highly significant correlation with each other (r=0.645***).Keywords
Nitrogen Fractions, Profile Distribution, Correlation, Accumulation.
References
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- Quality Evaluation of Chemically-Enriched Compost, Vermicompost and Conventional Compost
Abstract Views :203 |
PDF Views:1
Authors
Affiliations
1 Krishi Vigyan Kendra, Extension Training Centre (SKUAST-K.), Malangpora, Pulwama (J&K), IN
1 Krishi Vigyan Kendra, Extension Training Centre (SKUAST-K.), Malangpora, Pulwama (J&K), IN
Source
An Asian Journal of Soil Science, Vol 12, No 1 (2017), Pagination: 66-70Abstract
The main objective of conducting the current study was to evaluate the chemical compositions of different chemically-enriched composts prepared by the methods of pit and heap and compare it with conventional compost. The various composts viz., phosphocompost (PC), nitrogen-enriched phosphocompost (NPC), phosphorus-enriched vermicompost (PVC) and vermicompost (VC) were compared with conventional compost. These composts were produced by using chemical amendment in case of chemically- enriched compost whereas vermicompost was prepared by inoculating the epigeic earth worms (Eisenia foetida) with and without rock phosphate. Mineral matter content, ash and moisture were higher in all enriched composts and vermicompost in comparison to conventional compost whereas as total organic carbon, water soluble carbon and C: N were higher in conventional compost. There was higher variation in the content of nutrients in different composts as that of the conventional one but nitrogen and phosphorus were higher in nitrogen enriched phosphorus-compost and phosphorus enriched vermicompost. Zinc was higher in nitrogen enriched phosphorus-compost, vermicompost and phosphorus enriched vermicompost whereas manganese was higher in vermicompost and phosphorus enriched vermicompost. The time period of decomposition was almost similar (120±5) among the enriched composts, whereas in case of conventional compost, decomposition period was (160±10). Biochemical quality stated that conventional compost had lesser amount of total phenol, alkaline and acid phosphatase enzyme activity but higher dehydrogenase activity than those of enriched composts. The more dehydrogenase activity in conventional compost is an indicator of partial decomposition of the compost. The vermicompost was better than conventional compost; it could be still further improved by rock phosphate enrichment.Keywords
Earth Warm, Conventional Composts, Chemically-Enriched Compost, Biochemical Quality, Enzymes, Time Period.References
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