Influence of phosphorous, lime and water regime on water productivity and phosphorous nutrition of maize (Zea Mays L.) / (Record no. 4317)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 04013nam a22002057a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20240820160705.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 140922b xxu||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CPGS |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 633.158950954164 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Marwein, Mangkara A. |
| 9 (RLIN) | 3015 |
| 245 ## - TITLE STATEMENT | |
| Title | Influence of phosphorous, lime and water regime on water productivity and phosphorous nutrition of maize (Zea Mays L.) / |
| Statement of responsibility, etc | By Mangkara A.Marwein |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Umiam : |
| Name of publisher, distributor, etc | CPGS, CAU |
| Date of publication, distribution, etc | c2014 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | [24], 64p.: |
| 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) | 3016 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Rainfed maize production in the Northeastern states of Meghalaya often suffers from intermittent moisture stress during peak growing season. The primary cause is due to heavy dependence on erratic temporal distribution of rainfall and the absence of any alternative water supply systems. Dominance of strongly acidic soils (pH<5.5) in the region further induces soil fertility stresses. In the recent past, <br/>attempts have been made to ameliorate the acid soils of Meghalaya by liming and their ameliorative effect on maize productivity improvement was also well documented. However, information on the response of integrated effects of liming with phosphorus (P) fertilization under differential soil moisture regimes (water deficit stress to stress free) on consumptive water use as well as maize <br/>productivity is inadequate. Keeping this in view, in the present investigation conducted in controlled environment at mid altitude of Meghalaya (250 41/ N latitude, 910 55/ E longitude), integrated effects of liming, and P fertilization under differential water regimes on actual crop evapotranspiration loss (ETc) or consumptive water use, soil health as well maize and water productivity (WP) were studied. Results revealed that seasonal crop ETc loss of maize varied from as low as 124.3 mm to 270.9 mm across three soil moisture regimes of 25%, 50% and 100% of field capacity (severe, moderate and stress free). With the increase in application of irrigation water from 25% to 100% of field capacity, a consistent increase in crop ETc loss was registered. Highest seasonal crop ETc loss of 270.9 <br/>mm was estimated on application of P @ 60 kg ha-1 along with 25% lime requirement and irrigation to keep soil moisture regime at 100% of field capacity (FC) level. Among the maize growth stages, vegetative stages (tillering to tasseling) contributed the maximum ETc loss while the highest weekly crop ETc loss of 13 -30 mm was estimated during 11-12th weeks after sowing (coincided with <br/>blistering stage). Weekly ETc loss increased significantly (p<0.05) with the increase in water level (25-100% of FC). Maize crop could able produce grain yield of 6.04 to 11.21 g pot-1 only in stress free water regimes (100% of FC level). Crop WP of grain with respect to ETc loss (WPET) varied from 0.71 to 1.36 g grain kg-1 water. Similarly, WP of grain with respect to irrigation water (WPIR) varied from 0.42 to 0.78 g grain kg-1 water. Crop WP of biomass with respect to ETc loss as well as irrigation water also varied widely across different treatment combinations. Among the treatment combinations, application of P @ 60 kg ha-1 along with lime at moisture regime of 100% of field capacity significantly improved plant growth parameters including biomass (above and below ground) production as well as crop water productivity. Integrated effects of liming, P fertilization and moisture regime was significantly visible in improving post-harvest soil acidity and fertility parameters including nutrient availability and nutrient uptake. Among the three input factors, water regime was the most crucial in controlling the consumptive water use, nutrient uptake as well crop water productivity of maize. <br/> <br/> |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Maize |
| General subdivision | phosphorous Nutrition |
| Geographic subdivision | Meghalaya |
| 9 (RLIN) | 3017 |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | B.U. Choudhury |
| Relator term | Major Advisor |
| 9 (RLIN) | 3018 |
| 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 | 22/09/2014 | 633.158950954164 MAR | TH144 | 24/01/2020 | 22/09/2014 | MSc Thesis |