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Title: | Paired-row planting and furrow irrigation increased light interception, pod yield and water use efficiency of groundnut in a hot sub-humid climate |
Other Titles: | Not Available |
Authors: | Mandal, K.G., Thakur, A.K. and Mohanty, S |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR-Indian Institute of Water Management, Bhubaneswar (Odisha) |
Published/ Complete Date: | 2018-12-15 |
Project Code: | Not Available |
Keywords: | Groundnut Irrigation Planting method Evapotranspiration Water use efficiency Yield-ET functions |
Publisher: | Elsevier |
Citation: | Mandal, K.G., Thakur, A.K. and Mohanty, S. 2019. Paired-row planting and furrow irrigation increased light interception, pod yield and water use efficiency of groundnut in a hot sub-humid climate. Agricultural Water Management, 213: 967-977. |
Series/Report no.: | Not Available; |
Abstract/Description: | Increasing scarcity of irrigation water calls for enhancing water use efficiency (WUE) of crops, and improved planting method is a potential option. Field experiments were conducted for 3 years to evaluate effects of three planting methods of groundnut viz. flat-bed, ridge and furrow and paired-row at four irrigation regimes viz. 1, 2, 3 and 4 irrigations. Ridge and furrow, and paired-row methods resulted in an increase in pod yield by 13 and 17% and irrigation water saving by 26.7 and 41.7%, respectively compared with flat-bed method. Although highest yield level was similar in ridge and furrow and paired-row methods with four irrigations, irrigation water was 28.4% less in the latter than the former. In the three irrigation x paired-row method, pod yield reduced by only 3.8%, whereas water saving was 26.9% compared to the four irrigations x paired-row method. Better root dry weight, greater intercepted photosynthetically active radiation, chlorophyll fluorescence (Fv/Fm and ФPS II) and rate of leaf photosynthesis contributed to higher yield and nutrient uptake under paired-row at higher irrigation regime than traditional flat-bed method. Although evapotranspiration (ET) increased with higher irrigation regimes; ridge and furrow and paired-row method decreased ET by 13 and 21%, and increased crop WUE by 32.6 and 48%, respectively over flat-bed. The pod yield (Y)-ET functions were found linear; it has been revealed that the crop will achieve maximum pod yield (2109 kg ha−1) with 359mm ET under paired-row planting. Computed elasticity of water production and crop yield response factor could well be used for making irrigation decisions. This field study confirmed that paired-row planting and furrow irrigation had increased pod yield, saved water and enhanced WUE of groundnut under hot sub-humid conditions |
Description: | Not Available |
ISSN: | ISSN: 0378-3774 |
Type(s) of content: | Article |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Agricultural Water Management |
NAAS Rating: | 10.02 |
Volume No.: | 213 |
Page Number: | 967-977 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | https://doi.org/10.1016/j.agwat.2018.12.018 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/24284 |
Appears in Collections: | NRM-IIWM-Publication |
Files in This Item:
File | Description | Size | Format | |
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K.G. Mandal_Paired row planting.pdf | 980.18 kB | Adobe PDF | View/Open |
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