The effect of P fertilizer rates on growth and production parameters of waterleaf [Talinum triangulare (Jacq.) Willd] were studied over two months (February-April 2010) in Bogor. Treatments of five P-rates (0, 200, 400, 600, and 800 kg SP-18 ha-1) were laid out in a randomized complete block design with three replications. Generally, the effect of P fertilization in waterleaf was mostly prominent at 8th week after planting (WAP). The increase of P rates increased leaf area, leaf fresh weight, edible part (shoot weight), and protein production; but decreased anthocyanin production. These results suggested that to produce high protein and anthocyanin, waterleaf must be fertilized with 400 kg SP-18 ha-1; and P fertilizer must be applied at least two weeks before planting. Keywords: inorganic fertilizer, phosphorus, portulacaceae, secondary metabolite

Main Author:	Mualim, Leo; Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University, Jl. Meranti, Kampus IPB Darmaga 16680, Indonesia
Other Authors:	The effect of P fertilizer rates on growth and production parameters of waterleaf, ">Talinum, ">triangulare (Jacq.) Willd] were studied over two months (February-April 2010) in Bogor. Treatments of five P-rates (0, 200, 400, 600, and 800 kg SP-18 ha-1) were laid out in a randomized complete block design with three replications. Generally, the effect of P fertilization in waterleaf was mostly prominent at 8th week after planting (WAP). The increase of P rates increased leaf area, leaf fresh weight, edible part (shoot weight), and protein production, but decreased anthocyanin production. These results suggested that to produce high protein and anthocyanin, waterleaf must be fertilized with 400 kg SP-18 ha-1, and P fertilizer must be applied at least two weeks before planting, "> , ">Keywords: inorganic fertilizer, phosphorus, portulacaceae, secondary metabolite
Format:	Article info application/pdf eJournal
Bahasa:	eng
Terbitan:	Bogor Agricultural University
Online Access:	http://journal.ipb.ac.id/index.php/jurnalagronomi/article/view/%20%3Cp%20class%3D%22BODYTEXT%22%3E%3Cem%3EThe%20effect%20of%20P%20fertilizer%20rates%20on%20growth%20and%20production%20parameters%20of%20waterleaf%20%5B%3Cspan%20style%3D%22text-decoration%3Aunderline%3B%22%3ETalinum%3C%2Fspan%3E%20%3Cspan%20style%3D%22text-decoration%3Aunderline%3B%22%3Etriangulare%3C%2Fspan%3E%20%28Jacq.%29%20Willd%5D%20were%20studied%20over%20two%20months%20%28February-April%202010%29%20in%20Bogor.%20Treatments%20of%20five%20P-rates%20%280%2C%20200%2C%20400%2C%20600%2C%20and%20800%20kg%20SP-18%20ha%3Csup%3E-1%3C%2Fsup%3E%29%20were%20laid%20out%20in%20a%20randomized%20complete%20block%20design%20with%20three%20replications.%20Generally%2C%20the%20effect%20of%20P%20fertilization%20in%20waterleaf%20was%20mostly%20prominent%20at%208%3Csup%3Eth%3C%2Fsup%3E%20week%20after%20planting%20%28WAP%29.%20The%20increase%20of%3Cspan%3E%C2%A0%20%3C%2Fspan%3EP%20rates%20increased%20leaf%20area%2C%20leaf%20fresh%20weight%2C%20edible%20part%20%28shoot%20weight%29%2C%20and%20protein%20production%3B%20but%20decreased%20anthocyanin%20production.%20These%20results%20suggested%20that%20to%20produce%20high%20protein%20and%20anthocyanin%2C%20waterleaf%20must%20be%20fertilized%20with%20400%20kg%20SP-18%20ha%3Csup%3E-1%3C%2Fsup%3E%3B%20and%20P%20fertilizer%20must%20be%20applied%20at%20least%20two%20weeks%20before%20planting.%3C%2Fem%3E%3C%2Fp%3E%20%3Cp%20class%3D%22BODYTEXT%22%20style%3D%22text-indent%3A0in%3B%22%3E%3Cem%3E%C2%A0%3C%2Fem%3E%3C%2Fp%3E%20%3Cp%20class%3D%22BODYTEXT%22%20style%3D%22text-indent%3A0in%3B%22%3E%3Cem%3EKeywords%3A%20inorganic%20fertilizer%2C%20phosphorus%2C%20portulacaceae%2C%20secondary%20metabolite%3C%2Fem%3E%3C%2Fp%3E%20%3Cp%20class%3D%22BODYTEXT%22%20style%3D%22text-indent%3A0in%3B%22%3E%3Cem%3E%C2%A0%3C%2Fem%3E%3C%2Fp%3E http://journal.ipb.ac.id/index.php/jurnalagronomi/article/view/%20%3Cp%20class%3D%22BODYTEXT%22%3E%3Cem%3EThe%20effect%20of%20P%20fertilizer%20rates%20on%20growth%20and%20production%20parameters%20of%20waterleaf%20%5B%3Cspan%20style%3D%22text-decoration%3Aunderline%3B%22%3ETalinum%3C%2Fspan%3E%20%3Cspan%20style%3D%22text-decoration%3Aunderline%3B%22%3Etriangulare%3C%2Fspan%3E%20%28Jacq.%29%20Willd%5D%20were%20studied%20over%20two%20months%20%28February-April%202010%29%20in%20Bogor.%20Treatments%20of%20five%20P-rates%20%280%2C%20200%2C%20400%2C%20600%2C%20and%20800%20kg%20SP-18%20ha%3Csup%3E-1%3C%2Fsup%3E%29%20were%20laid%20out%20in%20a%20randomized%20complete%20block%20design%20with%20three%20replications.%20Generally%2C%20the%20effect%20of%20P%20fertilization%20in%20waterleaf%20was%20mostly%20prominent%20at%208%3Csup%3Eth%3C%2Fsup%3E%20week%20after%20planting%20%28WAP%29.%20The%20increase%20of%3Cspan%3E%C2%A0%20%3C%2Fspan%3EP%20rates%20increased%20leaf%20area%2C%20leaf%20fresh%20weight%2C%20edible%20part%20%28shoot%20weight%29%2C%20and%20protein%20production%3B%20but%20decreased%20anthocyanin%20production.%20These%20results%20suggested%20that%20to%20produce%20high%20protein%20and%20anthocyanin%2C%20waterleaf%20must%20be%20fertilized%20with%20400%20kg%20SP-18%20ha%3Csup%3E-1%3C%2Fsup%3E%3B%20and%20P%20fertilizer%20must%20be%20applied%20at%20least%20two%20weeks%20before%20planting.%3C%2Fem%3E%3C%2Fp%3E%20%3Cp%20class%3D%22BODYTEXT%22%20style%3D%22text-indent%3A0in%3B%22%3E%3Cem%3E%C2%A0%3C%2Fem%3E%3C%2Fp%3E%20%3Cp%20class%3D%22BODYTEXT%22%20style%3D%22text-indent%3A0in%3B%22%3E%3Cem%3EKeywords%3A%20inorganic%20fertilizer%2C%20phosphorus%2C%20portulacaceae%2C%20secondary%20metabolite%3C%2Fem%3E%3C%2Fp%3E%20%3Cp%20class%3D%22BODYTEXT%22%20style%3D%22text-indent%3A0in%3B%22%3E%3Cem%3E%C2%A0%3C%2Fem%3E%3C%2Fp%3E/3167