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Wardati '

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Author-ID : 3189419

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Environmental Science Industrial & Manufacturing Engineering

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Serapan NPK Kelapa Sawit dengan Aplikasi Dregs dan Trichoderma sp pada Pembibitan Awal di Medium Gambut Wardati '; Yetti Elfina
Jurnal Sagu Vol 7, No 01 (2008)
Publisher : Universitas Riau

The objective of this research was to study the influence of interaction between primary factors of trichoderma sp and dregs to N, P, K absorption in oil palm seedling at peat medium in pre nursery. It is conducted from September 2006 to februari 2007. The parameters of this research were N, P, K content of soil peat; N, P, K absorption of plant, shoot dry weight and root dry weight. The sesult indicated that the treatment of trichoderma sp and dregs increased N, P, K availability in peat medium and N, P, K absorption of palm seedling.

SERAPAN N, P, K DAN PRODUKSI JAGUNG (ZEA MAYS) PADA TANAH GAMBUT BEKAS BAKAR DENGAN PEMBERIAN TITHONIA DIVERSIFOLIA SEBAGAI BAHAN AMELIORAN Armaini '; Wardati '; Zitlfatri '
Jurnal Sagu Vol 10, No 01 (2011)
Publisher : Universitas Riau

The substitution of urea with Tithonia diversifolia biomass with concentration of 25 % , 50%, 75%and 100% on corn had been applied in burnt peat soil. The aim of research was to incrca.se absorpiion of soilfor elements needed, to improve the qoality of corn yield. The result of this research showed the combinationbetween urea and 50% to 100"/* of Tilhonia diversifolia biomass could increase the growth and productionof corn. The absorption of soilN, P, K had not atTectcd predominantly.

PEMANFAATAN Trichoderma sp DAN DREGS UNTUK PERTUMBUHAN DAN SERANGANPENYAKTrFISIOLOGISBIBITKELAPASAWIT PADAMEDIUMGAMBUTDIPEMBIBITANAWAL Vetti Elfina; Wardati '
Jurnal Sagu Vol 9, No 01 (2010)
Publisher : Universitas Riau

Oil palm {Elaeis guineentis Jacq) represents file most im|iorfant commodity in plantation sector.The problems often faced in oil palm agriculture effort is the availability of quality seed and avaOability ofpotential and fertile soil. Peat soil has some weaknesses such as its acidity (pH) and slow decompositionprocess. One method to overcome the acidity of peat soil is by using dregs and decomposition process can beimproved by applying Trichoderma sp. The objective of this research was to know the influence of interactionand primary factor of Trichoderma sp and dregs application for oil palm seed growth and physiologicalcondition at peat medium In pre nursery. It was conducted from September 2006 to Febrvari 2007. Theparameters of this research were the height of seed, leaf amount, shoot dry weight, root dry weight, and shoot-root ratio. The treatment of Trichoderma sp of 25 g/ kg of peat with dregs of 30 g/kg of peat had significanteRect to height of seed, and shoot wet weight. The primary factor tttdregs had significant effect to height ofseed and at dregs dose of 20 g/kg of peat, white leaf amount and shoot-root ratio at dregs dose of 30 g/kg of pea t.The primary factor of Trichoderma sp did not have any significant effect for all parameters.

Co-Authors Adi Candra Irawan Armaini ' Arnis En Yulia Aslim Rasyad Bariyanto ' Daniel Simangunsong Deviona ' Dian Wahyudi Eka Putra Dio Inardo Febrianti Triastuti Herry Dhani Islan ' Lamro Tua Siregar M Ade Syahputra M. Amrul Khoiri Miftahul Rahmi Nanda Satria Nelvia ' Paskah Aleksandro Putra Panggabean Rhoma Istikhori Riawati ' Rio Supratman Rosmimi ' Santus Hendra Jaco Shandy Kurniawan Suyuti Dahlan Taufik Hidayat Vetti Elfina Vika Nurhasanah Wawan ' Yetti Elfina Zitlfatri '

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