Nursyamsi, D. dan Suprihati. 2005. Sifat-sifat Kimia dan Mineralogi Tanah serta Kaitannya dengan Kebutuhan Pupuk NPK Pelangi untuk Jagung, Padi, dan Kedelai. http://online- journal.unja.ac.id/index.php/agronomi/article/download/357/274 [4 Juli 2013]....
PENGARUH WAKTU PEMBERIAN DAN DOSIS PUPUK NPK PELANGI TERHADAP PERTUMBUHAN TANAMAN JAGUNG MANIS VARIETAS SWEET BOYS (Zea Mays Saccharata Sturt)Effect Of Application Time and NPK Fertilizer Dosage on The Growth of Sweet Corn (Zea Mays ... SD Puji Astuti 被引量: 0发表: 2014年 Pengaruh Campuran...
Inside PT. East Kalimantan Fertilizer Marketing Office of East Java special sales system NPK Pelangi and Zeorganik still using Microsoft excel and word to input data. The downside is of course the process is not effective, could have been a mistake in the process penginputan or typing data. ...