<![CDATA[The study aims to determine the interaction and individual effects of silver black plastic mulch and organic fertilizers on the growth and yield of shallots on peat soil. The research was carried out on land located in Kubu Raya Regency, West Kalimantan using a factorial randomized block design method. The first factor was silver black plastic mulch treatment (without mulch and using mulch), the second factor was organic fertilizer treatment (without organic fertilizer, chicken manure, cow manure, goat manure, petroganic fertilizer, and biogreen fertilizer) each combination treatment was repeated 3 times. The results showed that the use of silver black plastic mulch and organic fertilizers individually and interactively had not optimally affected the growth and yield of shallots on peat soil. The use of silver black plastic mulch was able to increase the number of leaves per clump and the number of tillers per clump. The use of petroganic fertilizers can increase plant height with the highest yields. INTISARIPenelitian bertujuan untuk mengetahui pengaruh interaksi maupun secara individu dari perlakuan mulsa plastik hitam perak dan pupuk organik terhadap pertumbuhan dan hasil bawang merah pada tanah gambut. Penelitian dilaksanakan pada lahan yang terletak di Kabupaten Kubu Raya Kalimantan Barat menggunakan metode rancangan acak kelompok faktorial. Faktor pertama yaitu perlakuan mulsa plastik hitam perak (tanpa mulsa dan pemakaian mulsa), faktor kedua yaitu perlakuan pupuk organik (tanpa pupuk organik, pupuk kandang ayam, pupuk kandang sapi, pupuk kandang kambing, pupuk petroganik, dan pupuk biogreen) masing-masing kombinasi perlakuan diulang sebanyak 3 kali. Hasil penelitian diperoleh bahwa penggunaan mulsa plastik hitam perak dan pupuk organik secara individu dan secara interaksi belum berpengaruh secara optimal terhadap pertumbuhan dan hasil bawang merah pada tanah gambut. Penggunaan mulsa plastik hitam perak mampu meningkatkan pertambahan jumlah daun per rumpun dan jumlah anakan per rumpun. Penggunaan pupuk petroganik mampu meningkatkan tinggi tanaman dengan hasil yang tertinggi.]]>
