Dataset Information

Depth of soil compaction predominantly affects rice yield reduction by reproductive-stage drought at varietal screening sites in Bangladesh, India, and Nepal.

ABSTRACT:

Aims

Drought is the major constraint to rainfed rice productivity in South Asia, but few reports provide detailed characterization of the soil properties related to drought stress severity in the region. The aim of the study was to provide a compilation of drought breeding network sites and their respective levels of drought stress, and to relate soil parameters with yield reduction by drought.

Methods

This study characterized levels of drought stress and soil nutrient and physical properties at 18 geographically distributed research station sites involved in rice varietal screening in Bangladesh, India, and Nepal, as well as at farmers' fields located near the research stations.

Results

Based on soil resistance to penetration profiles, a hardpan was surprisingly absent at about half of the sites characterized. Significant relationships of depth of compaction and yield reduction by drought indicated the effects of soil puddling on susceptibility to cracking, rather than water retention by hardpans, on plant water availability in this region. The main difference between research stations and nearby farmers' fields was in terms of soil compaction.

Conclusions

These results present an initiative for understanding the range of severities of reproductive-stage drought stress in drought-prone rainfed lowland rice-growing areas in South Asia.

SUBMITTER: Singh SP

PROVIDER: S-EPMC6560918 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Publications

Depth of soil compaction predominantly affects rice yield reduction by reproductive-stage drought at varietal screening sites in Bangladesh, India, and Nepal.

Singh Suresh Prasad SP Jain Abhinav A Anantha M S MS Tripathi Santosh S Sharma Subarna S Kumar Santosh S Prasad Archana A Sharma Bhawana B Karmakar Biswajit B Bhattarai Rudra R Das Sankar Prasad SP Singh Shravan K SK Shenoy Vinay V Chandra Babu R R Robin S S Swain Padmini P Dwivedi J L JL Yadaw Ram Baran RB Mandal Nimai P NP Ram T T Mishra Krishna Kumar KK Verulkar S B SB Aditya Tamal T Prasad Krishna K Perraju Puvvada P Mahato Ram Krishna RK Sharma Sheetal S Anitha Raman K K Kumar Arvind A Henry Amelia A

Plant and soil 20170510 1

<h4>Aims</h4>Drought is the major constraint to rainfed rice productivity in South Asia, but few reports provide detailed characterization of the soil properties related to drought stress severity in the region. The aim of the study was to provide a compilation of drought breeding network sites and their respective levels of drought stress, and to relate soil parameters with yield reduction by drought.<h4>Methods</h4>This study characterized levels of drought stress and soil nutrient and physica ...[more]

PMID: 31258196

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Dataset Information

Depth of soil compaction predominantly affects rice yield reduction by reproductive-stage drought at varietal screening sites in Bangladesh, India, and Nepal.

Aims

Methods

Results

Conclusions

Publications

Depth of soil compaction predominantly affects rice yield reduction by reproductive-stage drought at varietal screening sites in Bangladesh, India, and Nepal.

Similar Datasets

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