A geographical and economic analysis of past nitrogen response trial results for maize in Malawi (Record no. 9527)
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| 000 -LEADER | |
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| fixed length control field | 02744nam a22003977a 4500 |
| 001 - CONTROL NUMBER | |
| control field | G65020 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20211006075737.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 121211s ||||f| 0 p|p||0|| | |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER | |
| International Standard Book Number | 92-9146-025-7 |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | MX-TxCIM |
| 072 #0 - SUBJECT CATEGORY CODE | |
| Subject category code | E10 |
| 072 #0 - SUBJECT CATEGORY CODE | |
| Subject category code | F01 |
| 072 #0 - SUBJECT CATEGORY CODE | |
| Subject category code | F04 |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 633.15 |
| Item number | EAS No. 5 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Benson, T.D. |
| Affiliation | Maize Productivity Gains through Research and Technology Dissemination. Proceedings of the Eastern and Southern Africa Regional Maize Conference, 5; Arusha (Tanzania); 3-7 Jun 1996 |
| 110 2# - MAIN ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico) |
| 245 00 - TITLE STATEMENT | |
| Title | A geographical and economic analysis of past nitrogen response trial results for maize in Malawi |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | Addis Ababa (Ethiopia) |
| Name of publisher, distributor, etc. | CIMMYT : |
| Date of publication, distribution, etc. | 1997 |
| 340 ## - PHYSICAL MEDIUM | |
| Material base and configuration | Printed |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | In the 1995/96 growing season, the agricultural research and extension services of the Malawi government jointly evaluated provisional area-specific fertilizer recommendations for maize grown by smallholders throughout the country. These recommendations are to replace a blanket recommendation currently in place. To complement that work, in this paper I present the results of a statistical and economic evaluation of historical nitrogen (N) response trial data. Yield results were used from 500 nutrient response trials implemented at close to 300 sites on farmers' fields throughout Malawi by the Department of Agricultural Research from 1970 through 1993. This research involved evaluating and cleaning the data set, assigning trial sites to fertilizer recommendation zones, and calculating through multiple regression the coefficients of both the linear and the quadratic N-response functions at each site. The current provisional area-specific recommendations are evaluated in light of the results of this analysis. The quadratic response curves are used to determine the optimum nitrogen application in each zone under current fertilizer and maize prices. Finally, suggestions are made as to how the recommendations can be extended in scope and content to enable extension agents to offer farmers flexible and appropriate information on inorganic N-fertilizer management. |
| 546 ## - LANGUAGE NOTE | |
| Language note | English |
| 591 ## - CATALOGING NOTES | |
| Affiliation | 9801|AGRIS 9702 |
| 595 ## - COLLECTION | |
| Collection | CIMMYT Publications Collection |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Economic analysis |
| Miscellaneous information | AGROVOC |
| Source of heading or term | |
| 9 (RLIN) | 1088 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Geography |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Malawi |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| 9 (RLIN) | 1213 |
| Topical term or geographic name as entry element | Plant response |
| Miscellaneous information | AGROVOC |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Trials |
| 653 0# - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | CIMMYT |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| 9 (RLIN) | 1314 |
| Topical term or geographic name as entry element | Zea mays |
| Miscellaneous information | AGROVOC |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| 9 (RLIN) | 1190 |
| Topical term or geographic name as entry element | Nitrogen fertilizers |
| Miscellaneous information | AGROVOC |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ransom, J.K.|Palmer, A.F.E.|Zambezi, B.T.|Mduruma, Z.O.|Waddington, S.R.|Pixley, K.V.|Jewell, D.C. |
| Relator term | eds. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Conference proceedings |
| Date last seen | Total Checkouts | Full call number | Barcode | Copy number | Price effective from | Koha item type | Lost status | Damaged status | Not for loan | Collection code | Withdrawn status | Home library | Current library | Date acquired |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 02/10/2015 | 633.15 EAS No. 5 | 1P624172 | 1 | 02/10/2015 | Conference proceedings | Not Lost | CIMMYT Publications Collection | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Knowledge Center: John Woolston Library | 02/10/2015 |