1 Ph D Scholar (e mail: sunmuga152@gmail.com); 2 Professor (Agronomy), (e mail: thirukariram@yahoo.com), Department of Sericulture 78 Sericulture is a commercially sustainable farm based economic enterprise favouring rural poor in the unorganized sector, because of its relatively low requirement of fixed capital and high return. In recent years, recycling of crop residues has received considerable interest. In sericulture farms, the left over mulberry leaves from rearing bed and field and other waste including silkworm litter are not properly utilized in preparing compost of highly organic and nutritive value. Hence, it is essential to convert the sericulture farm waste in to valuable compost by adopting suitable technology. Sericulture waste serves as a good source of organic nutrients for the crops. Seriwaste contains more amounts of plant nutrients like macro and micro nutrients which contribute to increased production as compared to any other organic manure. Recently, using the seriwaste to the field crops to increase their yield and quality of the food grains is a new trend. The success of future agriculture depends upon sustainability of production system. This has necessitated research on use of organic manures. It helps farmers to reduce input cost of commercial fertilizers, thereby increasing the profit margin. Nutrients contained in organic manures are released more slowly and stored for a long time in the soil, ensuring a long residual effect (Sharma and Mittra 2007) and sustaining soil fertility. Indian Journal of Agricultural Sciences 84 (8): 982–6, August 2014/Article https://doi.org/10.56093/ijas.v84i8.43106 Effect of recycling of seri-vermicompost on growth, yield and nutrients of maize (Zea mays) R SHANMUGAM 1 and K RAMAMOORTHY 2 Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu 641 003 Received: 6 December 2012; Revised accepted: 30 April 2014 ABSTRACT Field experiments were conducted at Thalingipalayam block (Avinashi, block), Tamil Nadu (India) during kharif and rabi seasons of 2011-2012 to study the effect of recycling of seriwaste compost (organic manure) with other organics and inorganics on the productivity of maize crop. The experiments were laid out in randomized block design with three replications. Two source of organic manures, viz. seriwaste compost + animal and poultry wastes were imposed along with Nitrogen (N), Phosphorus (P), Potassium (K) levels (150:75:75 kg/ha), viz. 100% of Recommended Dose of Fertilizer (RDF) (T 1 ), 75% of RDF + 25% organic manure (T 2 ), 50% of RDF + 50% organic manure (T 3 ), 25% of RDF + 75% organic manure (T 4 ), 100% of RDF+75% of organic manure (T 5 ), 100% organic manure alone (T 6 ) and absolute control (T 7 ). Organic manures applied to crop of maize with different levels of NPK to all plots. The results revealed that 100% RDF + 75% organic manure were increased the growth and, yield attributes, yield and nutrients, which was followed by 50% RDF +50% organic manure with enhanced B/C ratio. Key words: B:C ratio, Maize, Nutrient uptake, Productivity, Quality, Seriwaste Maize (Zea mays L.) is one of the most important cereal crop grown all over the globe as poor man’s food and also as cattle and poultry feed. It is also a versatile crop, allowing it to grow across a wide range of agro ecological zones. Thus, it has been realized that application of chemical fertilizers in conjunction with organic manures will sustain and maintain the productivity of soil. Therefore, it is necessary to compare various organics as well as chemical fertilizers in order to find out the most effective integrated nutrient combination in maize crop. MATERIALS AND METHODS Seriwaste compost (organic manures) was prepared in the farmer’s field in Avinashi, Tiruppur (District), Tamil Nadu (India) as per the following standard recommended procedure. Rearing waste and mulberry farm residues and weeds (removed before flowering) are collected in a pit of convenient size with 1 m depth. The left over stems/shoots can also be decomposed. However, they should be crushed before putting them in pit, which makes their decomposition faster. The thin layer of cattle dung and poultry waste and water or spent slurry of biogas plant are spread into the pit regularly after every collection of one foot thick compacted layer of the wastes. When the pit is filled, it is plastered with a layer of mud and cattle dung. The pit should be protected from rain and direct sunlight by providing a thatched shed over it. As decomposition process usually takes about 4-5 months, the pit should be left undisturbed and opened only after 5 months. Seriwaste containing of