Radiation climate and water use studies in intercropping systems
1985
Sinha, A.K. | Nathan, K.K. | Singh, A.K. (Indian Agricultural Research Inst., New Delhi (India). Water Technology Centre)
A study was conducted to find out radiation climate and water use in intercropping in order to select suitable crop components. Mustard, gram and pea were grown as intercrops of wheat at four irrigation water depth (IW) and cumulative pan evaporation (CPE) ratios. The photosynthetic active radiation (PAR) was again observed to be maximum (0.73 to 0.94 langley min-1) in mustard as compared to pure wheat (0.75 - 0.84 langley min-1), pea (0.20 - 0.84 langley min-1) and gram (0.64 - 0.82 langley min-1) in the mixture. Total radiation in wheat (1.33 - 1.5 langley min-1) with mustard as intercrop was very close to that of pure wheat. Light intensity (LI) was also higher (84.0 - 107.6 x 1000 lux) in mustard compared to pea (77.5 - 98.0 x 1000 lux) and gram (95.8 - 104.4 x 1000 lux). Wheat and mustard mixture was more productive than other intercrops with better water use efficiency and maximum utilization of radiation climate
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