Effect of hydrogel and nano solution on agro-meteorological indices of greengram

Abstract

India is the largest producer and consumer of pulses in the world accounting for about 35 percent and 25 percent of world’s area and production respectively. A field experiment was conducted to study climate resilient crop management practices for increasing production and productivity of greengram in rice fallow by application of hydrogel and nano solution at the instructional farm, Odisha University of Agriculture and Technology, Bhubaneswar during rabi 2018-19. The experiment was with sixteen treatments with combination of two cultivar such as Virat and IPM 02- 14 and eight combination of moisture saving elements along with control of environmental and improved practice. All the plants grown in T8 (Plants grown with Improved practice, Hydrogel, Nano Solution and Trichoderma) with Virat variety produces maximum yield and required less water and its water use efficiency was also high. Due to treatment with hydrogel and nano solution the root proliferation occurs and number of root nodules were also increased and it provides maximum yield. As we known root always goes in search of water. So where we applied hydrogel water was available with in a short distance. For this reason the growth of plant is very good here and the plants finish their life cycle at exact time. Where as in drought condition where water is not available the plants are completed their life cycle with in short period of time. So in farmers practice it requires very less GDD (1098.9 oC), HTU(7783.8 oC hr) and PTU(12455.6 oC hr). Where as highest GDD(1132.5 oC), HTU(7974.2 oChr) and PTU(13075.8 oC hr) recorded in the plants grown in T8 (Plants grown with Improved practice, Hydrogel, Nano Solution and Trichoderma).