Productivity of Sugarcane Plants of Ratooning with Fertilizing Treatment

摘要

Latief AS, Syarief R, Pramudya B, Muhadiono. 2010. Productivity of sugarcane plants of ratooning with various fertilizingtreatments. Nusantara Bioscience 2: 43-47. This research aims to determine the sugarcane plants of ratooning productivity with lowexternal input of fertilization treatment towards farmers can increase profits. The method used is the Completely Randomized BlockDesign (CRBD) with four treatments and three repetitions (4x3). Sugarcane varieties R 579 planted in each patch experiment 5x5 m2.Dosage of fertilizer: P0 = 3.6 kg/year plot experiment was 100% dosage USAge of chemical fertilizers used by farmers. Further dosageswere P1 (75%) = 2.7 kg/plot, P2 (50%) = 1.8 kg/plot and P3 (0.25%) = 0.9 kg/plot, each supplemented with fertilizer 5 mL of liquidorganic/patch a year. Sugarcane crops with a variety of treatment showed no significant difference. The highest productivity wasachieved at dosages of P2 (50% chemical fertilizers plus organic fertilizer) is 21.67 kg per square meter. Chemical fertilizers can besaved 7 quintals per hectare a year or Rp 997,500 per year. Additional costs of liquid organic fertilizer Rp. 100,000 per hectare year andlabor Rp 100,000 per hectare, so the additional advantage of saving farmers fertilizer Rp. 797,500 per year.