Jat, M.L. and Jain, P.M. and Sharma, S.K. and et al, . (2008) Drought management through in situ moisture conservation practices and rainwater harvesting strategies based on rainfall analysis in semi arid tropics. Indian Journal of Dryland Agricultural Research and Development, 23 (2). pp. 48-60.
![[img]](http://eprints.icrisat.ac.in/style/images/fileicons/application_pdf.png) |
PDF
Restricted to ICRISAT researchers only |
Abstract
Analysis of rainfall data revealed that in monsoon (kharif) season, a good weekly rainfall (above 10 mm) starts in the 23rd week with 25% probability of exceedance level when primary tillage operation can be initiated in the region of Rajasthan, India. Results revealed that the mean date of onset of effective monsoon was found to be 27th week (2 to 8 July) with a coefficient of variation of 6.2% and southwest monsoon generally withdrawal by 40th week (1 to 7 October) with a coefficient of variation of 12.9%. Mid-season drought may likely to occur during the period 33-35 weeks due to break is monsoon condition. Terminal drought may likely to occur in 36th week onwards with more than 50% probability. Based on rainfall analysis, short duration maize with in-situ moisture conservation practices was grown and also explored the possibility of recycling the harvested rain water in rabi season in medium textured soils in 4 years (2001 to 2004). The different rainfall situations occurred during the study period. The study revealed that sowing and ridging after first intercultural operations increased the mean maize yield by 13.2% over farmers practice without any extra cost. Mustard crop was observed to be most suitable crop with respect to productivity and net return (Rs 4993 ha-1) (1537 q ha-1 MEY) as compared to taramira [Eruca vesicaria] and gram. One supplemental irrigation to mustard, taramira and gram at 45 DAS is more profitable than irrigation at 60 DAS and no irrigation. Double cropping in rainfed maize soils was also explored through sowing of rabi crops viz., taramira, mustard and gram with supplemental irrigation, which increased productivity and rain water use efficiency. The in-situ moisture conservation practices and recycling of harvested rainwater techniques were found to very effective for drought mitigation
| Item Type: | Article |
|---|---|
| Author Affiliation: | Dryland Farming Research Station, Arjia, Bhilwara, MPUAT, Udaipur (Raj.), India - 311 001, India |
| Subjects: | Atmosperic Science > Climatology |
| Divisions: | General |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 26 Sep 2011 08:47 |
| Last Modified: | 26 Sep 2011 08:47 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/2695 |
Actions (login required)
 |
View Item |
