Impact of conservation tillage practices on the growth and yield of blackgram (Vigna mungo) in rice (Oryza sativa)-blackgram cropping system

A field experiment was conducted during post rainy seasons of 2015–16, 2016–17 and 2017–18 (December-March) at research farm Tamil Nadu Rice Research Institute, Aduthurai, to study the impact tillage practices adopted in rice (Oryza sativa L.) crop on succeeding blackgram (Vigna mungo grown as relay cropping. The treatment comprised 2 (puddled non-puddled), 3 seed priming methods (Bio-seed with Rhizobium, hydropriming no priming) foliar spray (2% DAP 2% urea). results indicated though puddled registered higher values Relative water content (RWC) (83.06 83.72%), Specific leaf weight (SLW) (6.83 6.28 g/cm2), Soil Plant AnalysisDevelopment chlorophyll meter (40.88 39.75) 30 45 DAS respectively, it comparable non-puddled method. However, sown transplanted a greater number nodules (23.67 17.44) dry (0.17 0.11 g) respectively compared transplanting. Similarly, root length (6.93 8.62 cm) (0.151 0.174 g respectively) were also tillage. yield obtained under system 11.8% than method system. Bio-seed rhizobium had growth parameters, which eventually resulted 25.0% increase over priming. As far concerned, Urea did not differ significantly for none parameters except yield.