화학공학소재연구정보센터
Bioresource Technology, Vol.187, 49-59, 2015
Struvite for composting of agricultural wastes with termite mound: Utilizing the unutilized
Although, compost is the store house of different plant nutrients, there is a concern for low amount of major nutrients especially nitrogen content in prepared compost. The present study deals with preparation of compost by using agricultural wastes with struvite (MgNH4PO4 center dot 6H(2)O) along with termite mound. Among four composting mixtures, 50 kg termite mound and 2.5 kg struvite with crop residues (stover of ground nut: 361.65 kg; soybean: 354.59 kg; potato: 357.67 kg and mustard: 373.19 kg) and cow dung (84.90 kg) formed a good quality compost within 70 days of composting having nitrogen, phosphorus and potassium as 21.59, 3.98 and 34.6 g kg(-1), respectively. Multivariate analysis of variance revealed significant differences among the composts. The four composts formed two (pit 1, pit 2 and pit 3, pit 4) different groups. Two principal components expressed more than 97% of the total variability. Hierarchical cluster analysis resulted two homogeneous groups of composts. (C) 2015 Elsevier Ltd. All rights reserved.