• KUMARI MANIMUTHU VEERAL

Field investigations were carried out in the farmers field, Cuddalore District of Tamilnadu, for 5 years to evaluate the influence of organic sources (FYM,vermicompost,daincha,pressmud ) on nodulation pattern of rice fallow blackgram and biological properties of soil from 2017-18 to 2019-21. The results of the field experiment revealed that among the various organic sources evaluated, combined application of FYM @ 10 t ha-1+ Bio fertilizers @2 kg ha-1was highly suitable in terms of their ideal physico-chemical characteristics, the magnitude of nutrient contents and their availability and it was found to improve the microbial population of the soil and nodulation pattern of rice fallow blackgram in all the seasons. BF in combination with FYM/vermicompost/daincha gave better results than farmer’s practice/control. Organic as well as integrated nutrient approaches enhance or maintain the biological properties of the soil.

NODULES,BIOLOGY

"INFLUENCE OF LONG-TERM USE OF ORGANIC SOURCES ON SOIL FERTILITY AND NODULATION PATTERN OF RICE FALLOW BLACKGRAM ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 9, page no.a17-a20, September-2023, Available :http://www.jetir.org/papers/JETIR2309004.pdf

"INFLUENCE OF LONG-TERM USE OF ORGANIC SOURCES ON SOIL FERTILITY AND NODULATION PATTERN OF RICE FALLOW BLACKGRAM ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 9, page no. ppa17-a20, September-2023, Available at : http://www.jetir.org/papers/JETIR2309004.pdf