Respon Rumput Chloris gayana dan Setaria splendida terhadap Penambahan Fungi Mikoriza Arbuskula dan Pupuk NPK pada Tanah Salin

Abstract

Plants grown in saline soil have a different physiological stress that is destroying . . the structure of enzymes and other macromolecules, cell organelle damage, photosynthesis inhibitation, respiration, protein synthesis and encourages ion deficiency. Plants exposed to low osmotic potential of saline soil solution wlil be exposed to the risk of "physiological drought". The purpose of the study was to evaluate the influence of Arbuscular Mycorrhizal Fungi (AMF) and NPK fertilizers on the growth and forage production of Chloris gayana and Setaria splendida on saline soil. The completely randomized design with factorial was used consists of two factors. The first factor was AMF inoculation consisted of 2 levels: without AMF and applied with AMF. The second factor was application of NPK fertilizer, consisted of 6 levels: without NPK, 50 kg NPK/ha, 100 kg NPK/ha, 150 kg NPK/ha, 200 kg NPK/ ha, and 250 kg NPK/ha. used in this study. Variables measured were: height vertical (PTV), the number of tillers (PJA), canopy dry matter production, dry matter production of roots, and percentage root infection. Research results showed that the AMF inoculation and 150 kg NPK/ha gave the best growth and yield of Chloris gayana, while in Setaria splendida the best growth and yield resulted from the application of 100 kg NPK/ha without AMF.