تلخیص
Afield experiment was carried out to explore the cultural methods for efficient use of brackish groundwater in rice-wheat cropping system. Tubewell water having EC 2.3 dS nr 1 , SAR 9.8 (mm L~')'/, and RSC 7.6 me L' was used to irrigate the rice crop and follow up wheat crop was grown on same layout with cannal water. Two green manuring crops, Sesbania aculeata (GMJ and Sesbania rostrata (GMJ were grown for three different periods viz. at last irrigation to wheat, just after wheat harvest with minimum tillage or with optimum land preparation after the wheat harvest before rice cultivation. The results indicated that S. rostrata (GMJ was slightly better than S. aculeata in terms of rice and wheat yields which was due to the fact that S. rostrata is a stem nodulating sp. and so contributed more nitrogen. Among different sowing times ofGM, the best one was the sowing ofGM with minimum tillage as more number of GMplants and higher GM biomass were obtained. Soil characteristics were least changed with brackish groundwater irrigation under the treatments receiving GM S. rostrata grown with minimum or optimum tillage
Tahir Hussain, , M. Akhtar Abbas,, S. Naheed Akhtar , G. Jilani * . (1993) EFFICIENT USE OF BRACKISH GROUNDWATER THROUGH CULTURAL APPROACH, The Journal Soil & Environment , Volume 8, Issue (1-2).
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