International Journal of Science and Knowledge ISSN: 2322-195X Vol. 4; No. 1; 36-40 (2015) Using facilities of spent mushroom compost (smc) in potato (Solanum tuberosum L.) cultivation Nuket Altindal 1 and Demet Altindal* 2 1 Usak University Sivasli Vocational School, Programme of Medical and Aromatic Plants, Usak, Turkey 2 Süleyman Demirel University, Faculty of Agriculture, Department of Field Crops. Isparta, Turkey Email: daltindal@gmail.com Abstract n this study, potato were grown in pots of medium containing different doses (0-25-50 and 75%) of spent mushroom compost (SMC). Experimental design was randomized complete block design with four replications. It was examined plant height (cm), number of main steam, number of tuber, the weight of tuber, yield of tuber on potato. According to the results, it was determined that the highest tuber number was found in 75% application of spent mushroom compost and the highest tuber weight and the yield of tuber was obtained from 50% application of SMC. Keywords: Potato (Solanum tuberosum L.), spent mushroom compost, yield Introduction he Potato (Solanum tuberosum L.) is a vegetable of major economic and food sources importance worldwide. As such, potato growers produce about 368 million tons of potato annually in world (Anonymous, 2015). Potatoes for human nutrition are a very important source of agriculture Major limiting factor in profitable potato production is yield, which can be seed and soil structure or both. A successful fertilizer treatment helps provide top yields of high quality potatoes while maximizing returns on fertilizer investment. Many cultural practices are being used to consumption of fertilizers which are one of the important inputs in plant production. Proper application of chemical fertilizer without environmental damage is more important factors. Therefore Non-chemical of fertilizers should a as alternative. Because they cheap and they may offer more environmentally safe. Such methods include waste some plants, spent crop, compost and pumice. The content of plant nutrient and mineral matter of spent mushroom compost (SMC) was high and affected the growing of plant positively. Washing, done to reduce the salt content of the SMC. NH4 NO3, Ca, Mg, Na, and K a significant amount while a smaller amount of P, Fe, Cu, Mn and Zn can be found in SMC wash water. Especially NH4 and NO3 they have been an important source of nutrients for plants (Anonymous 2013). SMC is a good weld of general nutrients (N, P, K plus a full range of trace elements) which make it well source for supporting plant growth (Kulshreshtha and Sharma, 2014). Danny 1992, Szmidt and Convay 1995, has accented the use of as fertilizers in field. Günay and et al., (1996) was defined of utilizable SMC in seedling production after decompozed in six month. When used of SMC and pumice were found height yield on eggplant (Çelikel and Abak 1995). Özgüven (1998) was informed of posıtıvely effected on yield and qualıty of SMC treatment in strawberry. Aydın (2009) investigated the effects of yield and quality in sugar I T