Effects of organic legume residues and inorganic fertilizer nitrogen on maize yield in Malawi (Record no. 4253)

000 -LEADER
fixed length control field 04499nam a22004817a 4500
001 - CONTROL NUMBER
control field G67812
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190315203403.0
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 970-648-006-4
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
072 #0 - SUBJECT CATEGORY CODE
Subject category code F04
082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 631.45
Item number WAD
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Kumwenda, J.D.T.
Affiliation Soil Fertility Research for Maize-Based Farming Systems in Malawi and Zimbabwe; Mutare, (Zimbabwe); 7-11 Jul 1997. Proceedings of the Soil Fertility Network Results and Planning Workshop
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 Effects of organic legume residues and inorganic fertilizer nitrogen on maize yield in Malawi
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Harare (Zimbabwe)
Name of publisher, distributor, etc. Soil Fert Net|CIMMYT :
Date of publication, distribution, etc. 1998
340 ## - PHYSICAL MEDIUM
Material base and configuration Printed
520 ## - SUMMARY, ETC.
Summary, etc. The combination of inorganic fertilizers, and organic manures from cattle or legumes crops is recognised as one way to reduce the costs of inorganic fertilizers and to reduce the decline of soil fertility under smallholder cropping systems in Malawi. An experiment was conducted from the 1994/95 to the 1996/97 cropping seasons to determine the effects of organic legume residues and inorganic fertilizer nitrogen (N) on soil N and maize (Zea mays) yield. The experimental design was a split-plot in which seven cropping systems (legume residues from maize/legume intercrops, and from sole legume crops or sole maize were main plots and three N levels (0, 46, and 96 kg N ha-1) were sub-plots. Results showed that the initial release of N was high from plots that received inorganic fertilizer without the addition of legume residues. The release of N from legume residues was retarded initially due to high [lignin + polyphenol]/N ratios. The combination of inorganic N and organic residues improved the release of N from plots with organic residues, suggesting that a starter N is required to reduce the immobilization capacity of legume residues. Nitrogen application resulted in significant yield increases over the no fertilizer application. The application of 48 kg N ha-1 gave the largest yield increments of 982 kg ha-1 in the 1995/96 cropping season and 1196 kg ha-1 in the 1995/96 and the 1996/97 cropping season. The highest grain yields of maize were obtained when maize was grown in rotation with legume crops [pigeon pea (Cajanus cajan) + maize, sunnhemp (Crotalaria junacea) + maize or mucuna (Mucuna aterrima)+ maize]. In the 1995/96 cropping season, grain yields of maize from these legume+maize rotation systems were 25 to 29% higher than maize yields from the continuous maize system (maize-maize) which yielded 4669 kg ha-1. In the 1996/97 cropping season, the pigeon pea -maize-maize rotation gave the highest yield of 6616 kg ha-1 which was 1257 kg ha-1 higher than the yield from the three-year continuous maize system. Only the maize/sunnhemp intercropping system gave significantly higher maize yield than the continuous maize system. The combination of inorganic fertilizers and organic legume residues improved yields of maize, but the largest increments were obtained when maize was grown in the maize/legume intercropping systems.|The agronomic results showed that sole legume crops when grown in rotation with maize can result in increased maize yields than when grown in intercropping systems, largely due to higher biomass production. An economic analysis, however, showed that sole continuous maize gave the highest net benefit. The best intercrop with fertilizer was pigeon pea at 96 kg N ha-1 or sunnhemp at 48 kg N ha-1. The maize+legume rotations (mucuna, sunnhemp or pigeon pea) had the lowest net benefits.|
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation 9906|AGRIS 9902|R98-99ANALY
595 ## - COLLECTION
Collection CIMMYT Publications Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Cropping systems
9 (RLIN) 1068
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Inorganic fertilizers
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1963
Topical term or geographic name as entry element Legumes
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Malawi
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Nitrogen content
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Organic fertilizers
9 (RLIN) 1740
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Residues
9 (RLIN) 1752
653 0# - INDEX TERM--UNCONTROLLED
Uncontrolled term CIMMYT
653 0# - INDEX TERM--UNCONTROLLED
Uncontrolled term Soil Fert Net
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) 1952
Topical term or geographic name as entry element Soil fertility
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1313
Topical term or geographic name as entry element Yields
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 Benson, T.D.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Ganunga, R.P.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Saka, A.R.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Snapp, S.S.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Waddington, S.R.|Murwira, H.K.|Kumwenda, J.D.T.|Hikwa, D.|Tagwira, F.
Relator term eds.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Conference proceedings
Holdings
Withdrawn status Lost status Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Full call number Barcode Date last seen Copy number Price effective from Koha item type
  Not Lost     CIMMYT Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2015-02-10 631.45 WAD V628739 2015-02-10 1 2015-02-10 Conference proceedings
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Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org