Respon Pemberian Biochar Kendaga dan Cangkang Biji Karet dan Berbagai Perlakuan Jarak Tanam Terhadap Pertumbuhan dan Produksi Tanaman Padi Beras Merah (Oryza nivara L.)

Abstract

Response to administration of biochar kendaga and rubber seed shells and various treatment of spacing on growth and production of brown rice (oryza nivara l.) in rubber plantation. The thesis is under guidance of miss sumihar hutapea as the supervisor and miss maimunah as a member of the supervisor. This research was carried out at the PTPN 2 sterect of jalan jati rejo precut sei tuan north sumatra’s deli district from may to November 2018. This study was condocted using factorial renomizad block design (RAK) consisting of treatment two factor, namely; 1). Biochar kendaga and rubber seed shell (b notation), consisting of four level’s, namely: B0= control (without treatment); B1= 0, 5 kg/plot; B2= 1 kg/plot; b3= 1,5 kg/plot. 2). Various treatment spacing consisting of three treatment level’s, namely: J1= 20 x 20 cm; J2= 25 x 25 cm J3= 30 x 30 cm. The parameter’s observed in this study were plant height, number of tillers, number of panicles of sample crops, weight of grain production per plot, weight of 1000 grains of grain. The result obtained is this study are: 1). Giving biochar control and rubber seed shells have a very significant effect on the number of panicles of sample crops, but have no significant effect on plant height, number of tillers, weight of grain production per sample, weight of grain production per plot, werghing 1000 grains of grain . Giving 1, 5 kg of biochar kendaga and rubber seed shell per plot can increase the number of tillers. Various cropping treatment have a significant effect on plant height and have a very significant effect on the number of tillers, number of panicles of sample crops, but have no significant effect on the weight of grain production per plot, weight of 1000 grains of grain. The treatment of 30 x 30 cm spacing and in crease the growth and production of brown rice.