No abstract

Availability of irrigation water is a crucial problem especially in arid and semi arid regions; and hence, application of wastewater in agriculture in such regions seems to be an attractive preposition. Increasing need for water has resulted in the use of treated sewage water application for agriculture. In the present study, cotton (Gossypium hirsutum L.) crop was irrigated with treated sewage water (TSW) through phytorid sewage treatment plant (anaerobic and aerobic conditions) and well water (WW) completely randomized design. In both the treatments recommended NPK doses of fertilizers were applied. The results showed better crop growth throughout the growing period. Seed cotton yield was enhanced by 11.82% with treated sewage water irrigation over the irrigation by well water. The accumulation of heavy metal in plant was far below than the prescribed safe limit. Therefore findings give applicable advice to farmers and agricultural researchers for proper management and use of treated sewage water for crop irrigation.

The rising population has not only increased the fresh water demand but also increased the volume of wastewater generated. Increasing need for water has resulted in the emergence of domestic wastewater application for agriculture and its relative use. In the present study a field experiment was conducted during 2012-13 and 2013-14

Water balance study on Zonal Agricultural Research Station, Sindewahi, Distt.Chandrpur was conducted on 9 open wells during the rainfall 2005-06. During the year total rainfall received was only 1422 mm. The study indicated that the availability of total water balance during the year was about 964.94 mm (67.84 %) of the total rainfall. Out of the total rainfall 8per cent was surface runoff, about 18.67 per cent ground water recharge (Yg) and 37 per cent soil moisture storage. Maximum (75.45 ham) ground water storage was observed in the month of September followed by 63.45 ham in the month August and minimum (16.50 ham) in the month of June. The monthly ground water fluctuations were determined by considering the month of May as the driest season. The average ground water level was found higher 455 cm in the month of September and maximum seasonal fluctuation of ground water level was observed in well No. 2 i.e. 612 cm. The study indicated the annual status of ground water potential.

Kharif and Rabi season of 2010-11 and 2011-12, to study the system productivity and profitability of sweet corn-chickpea cropping system as influenced by land configuration, plant population and integrated nitrogen management. Sweet corn yields were significantly higher in ridges and furrow with plant population of 55556 plants ha-1 and 100% N through inorganic fertilizer. However, sowing of sweet corn on ridges and furrow with plant population of 55556 plants ha-1 (60 x 30 cm 2) along with substitution of 50 per cent N through organic manure (vermicompost) to sweet corn crop exhibited remarkable residual effect on yield and GMR, NMR, B:C ratio of chickpea. This indicates benefits of vermicompost on subsidizing season chickpea than prevailing sweet corn. The system equivalent yield, GMR, NMR, B:C ratio of sweet corn-chickpea cropping sequence was maximum with sowing of sweet corn on ridges and furrow with plant population of 55556 plants per hectare (60 x 30 cm 2) along with application of 100 per cent N through inorganic fertilizers to sweet corn. System production efficiency and economic efficiency were also higher with these treatments.