Soil biochemical changes at different wheat growth stages in response to conservation agriculture practices in a rice-wheat system of north-western India (Record no. 60028)

000 -LEADER
fixed length control field nab a22 7a 4500
001 - CONTROL NUMBER
control field 60028
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190129154317.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 190128s2017 at |||po|p||| 00| 0 eng d
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.1071/SR16357
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
100 1# - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 7139
Personal name Bera, T.
245 1# - TITLE STATEMENT
Title Soil biochemical changes at different wheat growth stages in response to conservation agriculture practices in a rice-wheat system of north-western India
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Australia :
Name of publisher, distributor, etc. CSIRO,
Date of publication, distribution, etc. 2017.
500 ## - GENERAL NOTE
General note Peer review
520 ## - SUMMARY, ETC.
Summary, etc. Intensive tillage, removal or burning of crop residues, limited organic manure use, declining irrigation water resources and scarcity of labour are the major causes of soil degradation and unsustainability of rice (Oryza sativa L.)–wheat (Triticum aestivum L.) system (RWS) in South Asia.Resource conservation technologies (RCTs) such as zero tillage (ZT), dry direct seeded rice (DSR) and crop residues retained as mulch have shown promise to increase the productivity and profitability of RWS in South Asia. Effects of RCTs on soil biological parameters are unclear and contradictory. We evaluated the effects of conservation agriculture practices on changes in soil biochemical properties at different growth stages of wheat grown as the fifth crop in RWS. Twelve treatment combinations of tillage, crop establishment and crop residue management included four main plot treatments in rice: (1) conventional tillage (CT)-DSR,(2) ZT-DSR, (3) DTR, ZT machine transplanted rice and (4) PTR, conventional puddled transplanted rice. The three subplot treatments were: (i) CTW-R, CT wheat with both rice and wheat residues removed, (ii) ZTW-R, ZT wheat with residues of both the crops removed and (iii) ZTW+R, ZT wheat with rice residue retained as surface mulch in subsequent wheat. Irrespective of rice establishment methods, mean wheat grain yield under ZTW+R was 6% and 10% greater than CTW-R and ZTW-R respectively. Soil enzyme activities increased (5–18%) under ZTW+R compared with ZTW-R and CTW-R at different growth stages of wheat. The residual effect of rice establishment methods was significant on soil enzyme activities during wheat cropping, which were highest under ZT-DSR followed by CT-DSR, DTR and PTR. Soil organic carbon content in the 0–7.5 cm layer was significantly higher (7–9%) under the ZTW+R treatment compared with all the other treatments. Principal component analysis (PCA) identified three enzyme activities (dehydrogenase, fluorescein diacetate and phosphatase), and soil organic carbon content as the most sensitive indicators for assessing soil quality for RWS based on conservation agriculture. The PCA discriminated rice establishment systems with rice residue as surface mulch from rice establishment systems without rice residue and the maximum tillering stage from the other stages of wheat. The present study provided reliable biochemical indicators to monitor soil biological quality changes in response to conservation agriculture practices in RWS.
526 ## - STUDY PROGRAM INFORMATION NOTE
Program name Wheat CRP
Wheat Flagship Projects FP4 - Sustainable intensification of wheat - based cropping systems
546 ## - LANGUAGE NOTE
Language note Text in English
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 2619
Topical term or geographic name as entry element Conservation agriculture
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1310
Topical term or geographic name as entry element Wheats
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 8383
Topical term or geographic name as entry element Conventional tillage
Miscellaneous information AGROVOC
700 ## - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 6006
Personal name Sandeep Sharma
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 336
Personal name Thind, H.S.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 700
Personal name Singh, Y.
700 1# - ADDED ENTRY--PERSONAL NAME
Field link and sequence number INT3482
9 (RLIN) 961
Personal name Sidhu, H.S.
Miscellaneous information Borlaug Institute for South Asia
700 1# - ADDED ENTRY--PERSONAL NAME
Field link and sequence number INT3072
9 (RLIN) 889
Personal name Jat, M.L.
Miscellaneous information Sustainable Intensification Program
773 0# - HOST ITEM ENTRY
Related parts v. 56, no. 1, p. 91-104
Title Soil Research
International Standard Serial Number 1838-675X
856 ## - ELECTRONIC LOCATION AND ACCESS
Link text Access only for CIMMYT Staff
Uniform Resource Identifier http://46.20.115.203/download/cis/60028.pdf
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme
Koha item type Article
Suppress in OPAC 0

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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.
Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org