PENGARUH PENAMBAHAN SABUT KELAPA, BONGGOL JAGUNG, DAN LIMBAH KARDUS PADA MEDIA TANAM TERHADAP PRODUKTIVITAS JAMUR TIRAM PUTIH (Pleurotus ostreatus) DAN PENGEMBANGANNYA DALAM BENTUK BOOKLET SEBAGAI SUMBER BELAJAR MANDIRI SMA/MA

This research aims to determine the effect of adding coconut coir, corn cobs, and cardboard waste to the planting media on the productivity of white oyster mushrooms (Pleurotus ostreatus), to determine the best alternative media as a mixture of sengon wood powder, to determine the growth and development of white oyster mushrooms in alternative planting media, and to find out the validity and practicality of the booklet as a source of independent learning for high school student. This research consists of an experimental research stage by testing various combinations and concentrations of different materials between coconut coir, corn cobs, and cardboard waste, with the hope that these materials can be used as a substitute for the main raw material (sengon wood powder). The second stage is the development of a booklet using Corel DRAW X7 software. This booklet was assessed by 1 media expert, 1 theorist, 2 biology teachers and 15 students of X MIPA 2 SMA N 1 Jetis. From this experimental research, it was found that the best alternative media to rsubstitute the main raw material is corn cobs. The results of this research are then developed into a printed media product in the form of booklet. the result of the assessment of the booklets that have been carried out by theorist are 76% (Very Valid), media expert 80% (Very Valid), biology teachers 88% (Very Valid), and student responses are 86% (Good). Based on this assessment, the booklet is suitable for use as a learning resource