Home About Browse Search
Svenska


Impact of best management practices on sustainable crop production and climate resilience in smallholder farming systems of South Asia

Anantha, K. H. and Garg, Kaushal K. and Barron, Jennie and Dixit, Sreenath and Venkataradha, A. and Singh, Ramesh and Whitbread, Anthony M. (2021). Impact of best management practices on sustainable crop production and climate resilience in smallholder farming systems of South Asia. Agricultural Systems. 194 , 103276
[Article Review/Survey]

[img] PDF
4MB

Abstract

CONTEXT: A host of best water and soil management practices (BMPs) hold promise in addressing water scarcity and land degradation to enable sustainable crop intensification in smallholder farming systems.OBJECTIVE This study quantifies the effect of BMPs on crop productivity, income, water saving and water balance components and identifies gaps for future research.METHODS: This paper synthesizes the performance of BMPs and the existing data gap by reviewing 108 published studies from the Indian subcontinent which capture a diverse range of rainfall and cropping systems.RESULTS AND CONCLUSIONS: In situ conservation measures helped enhance crop yields by 200-1000 kg/ha, reduced cost of cultivation and enhanced incomes by US$ 10-200/ha/year. The BMPs were helpful in enabling annual water saving in the range of 50 mm to 300 mm by either conserving residual soil moisture or saving irrigation water resulting in enhanced water productivity. Interventions such as direct seeded rice and laser land leveling were found most effective in terms of water saving and in reducing cost of cultivation. On the other hand, ex situ rainwater harvesting interventions helped enhance groundwater recharge by harvesting an additional 50-150 mm of surface runoff which helped increase crop yields, led to sustainable crop intensification and strengthened the number of ecosystem services. Most of the published literature on in situ conservation measures are studies that were carried out at research stations, which show promise of sustainable intensification. However, greater efforts are needed to document learnings from farmer/community scale interventions for effective scaling up. There is also a gap in data availability that hampers a clear understanding of the impact of ex situ rainwater harvesting interventions and ecosystem trade-offs; moreover the data available covers short pe- riods and only covers an area of up to 10 km(2). We recommend the monitoring of long-term system-level impact indicators to realize the potential of ex situ rainwater harvesting interventions in a systems perspective and better grasp the ecosystem trade-offs.SIGNIFICANCE: More importantly, the review revealed the ample scope of integrating in situ and ex situ in- terventions to build system-level resilience in smallholder farming systems in order to accelerate progress to- wards achieving the United Nations Sustainable Development Goals (SDGs).

Authors/Creators:Anantha, K. H. and Garg, Kaushal K. and Barron, Jennie and Dixit, Sreenath and Venkataradha, A. and Singh, Ramesh and Whitbread, Anthony M.
Title:Impact of best management practices on sustainable crop production and climate resilience in smallholder farming systems of South Asia
Series Name/Journal:Agricultural Systems
Year of publishing :2021
Volume:194
Article number:103276
Number of Pages:19
Publisher:ELSEVIER SCI LTD
ISSN:0308-521X
Language:English
Publication Type:Article Review/Survey
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:Resource conservation measures, Landscape resource management, Rainwater harvesting, Sustainable crop intensification, Resource use efficiency, Smallholder farming systems
URN:NBN:urn:nbn:se:slu:epsilon-p-113942
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113942
Additional ID:
Type of IDID
DOI10.1016/j.agsy.2021.103276
Web of Science (WoS)000701028300005
ID Code:25660
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
Deposited By: SLUpub Connector
Deposited On:14 Oct 2021 10:25
Metadata Last Modified:14 Oct 2021 10:31

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits