Optimizing tillage schedule for maintaining activity of the arbuscular mycorrhizal fungal population in a rainfed upland rice (Oryza sativa L.) agro-ecosystem.
Identifieur interne : 002637 ( Main/Corpus ); précédent : 002636; suivant : 002638Optimizing tillage schedule for maintaining activity of the arbuscular mycorrhizal fungal population in a rainfed upland rice (Oryza sativa L.) agro-ecosystem.
Auteurs : D. Maiti ; M. Variar ; R K SinghSource :
- Mycorrhiza [ 1432-1890 ] ; 2011.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Phosphorus.
- growth & development : Oryza.
- metabolism : Oryza.
- methods : Agriculture.
- microbiology : Oryza.
- physiology : Fungi, Mycorrhizae.
- Ecosystem, Soil Microbiology.
Abstract
Rainfed uplands in India are predominantly mono-cropped with rice (Oryza sativa L.) in the wet season (June/July to September/October) and grown under aerobic soil conditions. The remaining fallow period (winter followed by summer) of about 8-9 months leads to natural crash in the population of native arbuscular mycorrhizal fungi (AMF) in the soil. Attempts have been made to minimize this population crash by reducing soil disturbance-induced deleterious effects on native AMF activity of improperly scheduled off-season tillage, an agronomic recommendation for weed and disease (soil-borne) management, practiced by the upland farmers. On-farm (farmers' field) evaluation of effects of all suitable off-season tillage schedule combinations on rice during wet seasons of 2004, 2005, and 2006 revealed that a maximum of two off-season tillage schedules with a minimum gap of 13 weeks between them minimized the population crash of native AMF with a concomitant increase in phosphorus (P) uptake and grain yield of upland rice (variety "Vandana").
DOI: 10.1007/s00572-010-0324-4
PubMed: 20544229
Links to Exploration step
pubmed:20544229Le document en format XML
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<author><name sortKey="Maiti, D" sort="Maiti, D" uniqKey="Maiti D" first="D" last="Maiti">D. Maiti</name>
<affiliation><nlm:affiliation>Central Rainfed Upland Rice Research Station (Central Rice Research Institute), PB 48, Hazaribag 825 301, Jharkhand, India. dipankar_maiti@live.in</nlm:affiliation>
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<author><name sortKey="Variar, M" sort="Variar, M" uniqKey="Variar M" first="M" last="Variar">M. Variar</name>
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<author><name sortKey="Singh, R K" sort="Singh, R K" uniqKey="Singh R" first="R K" last="Singh">R K Singh</name>
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<series><title level="j">Mycorrhiza</title>
<idno type="eISSN">1432-1890</idno>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Agriculture (methods)</term>
<term>Ecosystem (MeSH)</term>
<term>Fungi (physiology)</term>
<term>Mycorrhizae (physiology)</term>
<term>Oryza (growth & development)</term>
<term>Oryza (metabolism)</term>
<term>Oryza (microbiology)</term>
<term>Phosphorus (metabolism)</term>
<term>Soil Microbiology (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Phosphorus</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Oryza</term>
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<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Oryza</term>
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<front><div type="abstract" xml:lang="en">Rainfed uplands in India are predominantly mono-cropped with rice (Oryza sativa L.) in the wet season (June/July to September/October) and grown under aerobic soil conditions. The remaining fallow period (winter followed by summer) of about 8-9 months leads to natural crash in the population of native arbuscular mycorrhizal fungi (AMF) in the soil. Attempts have been made to minimize this population crash by reducing soil disturbance-induced deleterious effects on native AMF activity of improperly scheduled off-season tillage, an agronomic recommendation for weed and disease (soil-borne) management, practiced by the upland farmers. On-farm (farmers' field) evaluation of effects of all suitable off-season tillage schedule combinations on rice during wet seasons of 2004, 2005, and 2006 revealed that a maximum of two off-season tillage schedules with a minimum gap of 13 weeks between them minimized the population crash of native AMF with a concomitant increase in phosphorus (P) uptake and grain yield of upland rice (variety "Vandana").</div>
</front>
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<DateCompleted><Year>2011</Year>
<Month>07</Month>
<Day>12</Day>
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<DateRevised><Year>2019</Year>
<Month>12</Month>
<Day>10</Day>
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<Issue>3</Issue>
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<Title>Mycorrhiza</Title>
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<Abstract><AbstractText>Rainfed uplands in India are predominantly mono-cropped with rice (Oryza sativa L.) in the wet season (June/July to September/October) and grown under aerobic soil conditions. The remaining fallow period (winter followed by summer) of about 8-9 months leads to natural crash in the population of native arbuscular mycorrhizal fungi (AMF) in the soil. Attempts have been made to minimize this population crash by reducing soil disturbance-induced deleterious effects on native AMF activity of improperly scheduled off-season tillage, an agronomic recommendation for weed and disease (soil-borne) management, practiced by the upland farmers. On-farm (farmers' field) evaluation of effects of all suitable off-season tillage schedule combinations on rice during wet seasons of 2004, 2005, and 2006 revealed that a maximum of two off-season tillage schedules with a minimum gap of 13 weeks between them minimized the population crash of native AMF with a concomitant increase in phosphorus (P) uptake and grain yield of upland rice (variety "Vandana").</AbstractText>
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<AffiliationInfo><Affiliation>Central Rainfed Upland Rice Research Station (Central Rice Research Institute), PB 48, Hazaribag 825 301, Jharkhand, India. dipankar_maiti@live.in</Affiliation>
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