Study of physiological lime requirement of acid soils / (Record no. 3984)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02843nam a2200241Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20230317114758.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 130502s9999 xx 000 0 und d |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CPGS |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 631.42 PAR |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pariat, Derek Yule |
| 9 (RLIN) | 715 |
| 245 ## - TITLE STATEMENT | |
| Title | Study of physiological lime requirement of acid soils / |
| Statement of responsibility, etc | Derek Yule Pariat |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Umiam : |
| Name of publisher, distributor, etc | CPGS,CAU, |
| Date of publication, distribution, etc | c2011 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | [24] , 75p.: |
| Other physical details | ill., some col.; |
| 440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE | |
| Title | [Soil Science and Agricultural Chemistry, School of Natural Resource Management] |
| 9 (RLIN) | 759 |
| 501 ## - WITH NOTE | |
| With note | Abstract:<br/>A pot experiment was conducted to study the physiological lime requirement of acid soils to eliminate the Al toxicity equivalent to extractable Al for the test crop wheat.Eight bulk soil samples representing the major landuses of hill agriculture of Ri Bhoi district, Meghalaya were used to grow the test crop. Soils were limed equivalent to Al removed by different extractants viz. 1 M KCI, 1 N NH?OAc (pH-4.8), 0.2 M LaC1?, 0.33M LaC1?, 0.2 M CuCl? and 0.5 M CuCl?. Among the extractants, 0.5 M CuC? extracted more quantity of Al as compared to other extractants. The best extractant which could predict the optimum shoot and root yield of wheat was found to be 0.2 M LaCl?. P content and uptake in wheat increased with liming but was depressed to some extent by the lime rate predicted by 0.5 M CuCl?. K concentration and uptake increased only in the treatments based on 1 M KCI and 1 N NH?OAc and decreased significantly with higher rate of lime additions based on other extractants. However, Ca content and uptake were augmented by increasing Iime rates. Soil pH, exchangeable Ca, ECEC, % base and % Ca saturations increased significantly with increased levels of lime, whereas exchange acidity, exchangeable Al and % Al saturation decreased drastically. The lime rates based on 0.2 M LaCl?and 0.33 M LaCl? increased soil pH to around 5.5 irrespective of soils and reduced % Al saturation to 2.56% and 1.62%, respectively. Soil pH reflected significant negative correlation with exchange acidity, exchangeable Al and % Al saturation but was positively correlated with exchangeable Ca, ECEC, % base and % Ca saturations. The critical limit of soil pH for shoot and root growth of wheat was found to be 5.3 and 5.2, respectively. The critical values of exchange acidity, exchangeable AI, % Al saturation and % base saturation of ECEC were 1.0 [cmol (p+) kg-�], 0.75 [cmol (p+) kg-�], 10% and 66%, respectively which can be used as lime requirement indices for the acid soils of Meghalaya to optimise wheat.<br/> |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc | Includes bibliographical references. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Acid soils |
| 9 (RLIN) | 716 |
| General subdivision | Treatment. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | soil conditioner-lime |
| 9 (RLIN) | 717 |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Patiram |
| Relator term | Major Advisor |
| 9 (RLIN) | 718 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://krishikosh.egranth.ac.in/handle/1/5810193842">https://krishikosh.egranth.ac.in/handle/1/5810193842</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | MSc Thesis |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Home library | Current library | Date acquired | Total Checkouts | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | Natural Resource Management | CPGS | CPGS | 02/05/2013 | 631.42 PAR | TH026 | 24/01/2020 | 02/05/2013 | MSc Thesis |