Vol. 5 (4) : July-August 2014 issue
Green Farming Vol. 5 (4) : 587-591 ; July-August, 2014
Preparation of phosphocompost from the hydrothermal pretreated pine needles using the indigenous microbial consortium
DEEPSHIKHA THAKUR1*, RAJESH KAUSHAL2 and VINEET SHYAM3
Deptt. of Basic Sciences, Dr. Y.S. Parmar University of Horti. and Forestry, Nauni - 173 230, Solan (H.P).
Designation : 1Ph. D. Scholar *(deepshikhathakur86@gmail.com), 2Assoc. Professor, 3P.G. Student
Subject : Basic Science
Paper No. : P-1431
Total Pages : 5
Received : 03 Febuary 2014
Revised accepted : 11 July 2014
First Page
Citation :
DEEPSHIKHA THAKUR, RAJESH KAUSHAL and VINEET SHYAM. 2014. Preparation of phosphocompost from the hydrothermal pretreated pine needles using the indigenous microbial consortium. Green Farming Vol. 5 (4) : 587-591 ; July-August, 2014
ABSTRACT
Pine needles are known to be the main cause of forest fires and poor soil fertility in the Shiwalik region of western Himalayas, as they are less susceptible to biodegradation. In the present investigations the attempt has been made to prepare the bioactive phosphocompost from hydrothermally pre treated pine needles along with other agricultural wastes. The efficient indigenous microbes (decomposers and phosphate solubilising microorganisms) were isolated from soil, rural compost, municipal compost and mushroom spent compost. In vitro efficacy of selected microbes to decompose the composting materials was tested singly and in combinations. The results revealed that the consortium of Bacteria (DB1), Actinomycetes (DA7) and Fungi (DF14) was best among all tested sequential cultures. The compost was prepared in pits by enriching with rock phosphate and bone meal each @ of 3 %, along with efficient microbial consortium consisting of DB1 + DA7 + DF14 @ of 10 % by weight of composting material. The C/N ratio of prepared phosphocompost reduced from initial 56.9 to 18.1 on the 90th day of decomposition with pH 7.1. Total N P K content was 0.98, 2.24, 0.81% and the amount of Fe, Cu, Zn and Mn was 25.40, 0.23, 0.42 and 0.69 mg/kg, respectively. The total microbial count and microbial biomass was 37.34 ×105 cfu/g and 2357 µg/g of compost. The fecal coliforms were isolated at the initial days with count of 4.22×102 cfu/g, but diminished to nil to 90th day.
Key words :
Bone meal, Microbial biomass, Phosphocompost, Pine needles, Pretreatment, Rock phosphate.