Browsing by Author "Ragavendran, P."
Now showing 1 - 4 of 4
Results Per Page
Sort Options
ArticleItem Open Access Co-Composting Materials and Bio Accelerator on Nutritive Value of Manure(Indian Veterinary Association, 2018-06) Ragavendran, P.; Thennarasu, A.; Sundaram, S. Meenakshi; Bandeswaran, C.; Jaishankar, S.; Sivakumar, T.; TANUVASthe effect of co-composting materials and bio accelerator on nutritive value of manure. The result revealed that the nitrogen content was significantly higher (P<0.001) in Treatment 1 and 3 than the other treatment groups. The phosphorus content was significantly higher (P<0.001) in treatment groups T1, T3 and T4 than the other treatment groups. The treatment groups T3 and T4 wherein coir pith was added along with cow dung had a significantly higher (P<0.001) potassium content than the other treatment groups. It was concluded that addition of urine, feed refusal and Trichoderma viridae along with fortnightly turning of manure resulted in significantly reduced time for decomposition with higher nitrogen, phosphorus and potassium content.ArticleItem Open Access Effect of Co-Composting Materials and Bio-Accelerator on Composting Period of Manure(2018-08) Ragavendran, P.; Thennarasu, A.; Meenakshisundaram, S.; Bandeswaran, C.; Jaishankar, S.; Sivakumar, T.; TANUVASThe present study was conducted to find out the effect of co-composting materials and bio accelerator on composting period of manure. The results revealed that a highly significant difference in C: N ratio between the treatment groups and between different stages of decomposition. The C: N ratio is the indicator of the level of decomposition of the manure. The decomposition process is considered complete when the C: N ratio < 20:1. The required C: N ratio was achieved at a significantly shorter duration (60 days) in treatment 1, followed by treatment 2 (75 days), treatment 3 (90 days), treatment 4 (105days) and treatment 5 (135 days). It was concluded that addition of urine, feed refusal and Trichoderma viridae & Pleurotus fioridae along with fortnightly turning of manure resulted in significantly reduced period of decomposition and manure was ready for field application.ArticleItem Open Access Influence of Co-Composting Materials and Bio Accelerator on Temperature and pH Variation During Composting Process(Indian Veterinary Association, 2018-03) Ragavendran, P.; Thennarasu, A.; Sundaram, S. Meenakshi; Bandeswaran, C.; Jaishankar, S.; Sivakumar, T.; TANUVASThe present study was conducted to nd out the effect of co-composting materials and bio accelerator on temperature and pH variation during composting process. It was observed from the results that the thermophilic phase (40-64ºC) was reached earlier in treatment groups which have decomposed earlier i.e treatments 1 and 2. It took more time to reach the thermophilic phase in treatment 3 and 4 due to the addition of coir pith and maximum time was taken in treatment 5 where no bio- accelerator were added. A reduction in pH was noticed in all the treatment groups as the decomposition process progressed.ThesisItem Open Access USEFULNESS OF BIO-ACCELERATOR IN COMPOSTING CATTLE WASTE WITH DIFFERENT CO-COMPOSTING MATERIALS(TANUVAS, Chennai, 2017) Ragavendran, P.; Thennarasu, A.; TANUVAS; Meenakshisundaram, S.; Bandeswaran, C.; Jaishankar, S.Field experiments were conducted to study the usefulness of bio-accelerators in composting cow manure with co-composting materials and its utility in reducing the composting period and increasing the nutritive value of manure, at Post Graduate Research Institute in Animal Sciences, Kattupakkam, Kancheepuram district. The period of field research was from January 2017 to June 2017.