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Wardati, Wardati
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Agriculture, Biological Sciences & Forestry

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Aplikasi Amelioran Jerami dan Sekam Padi pada Tanah Gambut terhadap Pertumbuhan dan Produksi Kedelai Hendra, Hendra; Nelvia, Nelvia; Wardati, Wardati
Jurnal Agro Teknologi Tropika Vol 3, No 2 (2014)
Publisher : Jurnal Agro Teknologi Tropika

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Research applications straw and rice husk as ameliorant on peat soil to improve the growth and production ofsoybean in the peat soil was conducted from April to August 2012, at green house of the Faculty of Agriculture,University of Islamic of Indragiri. The objective was to get the best composition application ameliorant straw and ricehusk on peat soil on the growth and production of soybean. The experiment was used the completely randomized designwith a single factor consisting of 8 treatments (control, 3 tons.ha -1 of AJP, 3 tons.ha-1 of ASP, 3 tons.ha-1 of KJP, 2 tons.ha-1 of KJP + 1 tons.ha-1 of AJP, 2 tons.ha-1 of KJP + 1 tons.ha-1 of ASP, 1 tons.ha-1 of KJP + 1 tons.ha-1 of AJP and 1 tons.ha-1 of KJP + 1 tons.ha-1 of ASP) with 3 replications. Observations of each parameter analysis of variance (F test) and thedifference in treatment was continued with DNMRT (Duncan’s New Multiple Range Test) at 5% level. The results showedgranting ameliorant 3 tons.ha-1 of AJP can improve plant growth in terms of height that 51.16% (145.75 cm), ratio of theroot crown (4.86 g) dry stover weight of 1232.59% (24.12 g) soybean crop production, including number of 272.72% ofpods per plant, number of seeds per plant and seed weight 335.87% 333.23% dry. compared with no treatment.
Pengaruh Perubahan Penggunaan Lahan Hutan Alam Menjadi Hutan Tanaman Industri (HTI) Acacia crassicarpa terhadap Beberapa Sifat Fisika dan Sifat Kimia Tanah Gambut Amri, Al Ikhsan; Nelvia, Nelvia; Wardati, Wardati; Khotimah, Khusnul; Noviria, Ade
Jurnal Agro Teknologi Tropika Vol 4, No 1 (2015)
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The purpose of this research was determine how the effect of lands use change from natural forest to plantationforest Acacia crassicarpa on some physical properties and chemical properties of peat soil. The research conducted inthe PT. BBHA, Bukit Batu Subdistrict, Bengkalis Regency, and Laboratory of Soil Science Agriculture Faculty, RiauUniversity. The research was conducted by survey method, with purposive sampling. Data was analysed by descriptiveand graphics model. The parameters were particle size distribution, bulk density, particle density, porosity, pH, organiccarbon, total nitrogen, total phosphor and base cations (K, Ca, Mg and Na). The result of research show that land usechange from natural forest to plantation forest Acacia crassicarpa was increasing total of smalles particle, bulk density,and particle density, while the porosity decreases. Then the increasing were pH, total nitrogen, total phosphor, and basecations K, Ca, Mg, Na is fluctuative, whereas for organic carbon was linierly. The longer time of land use change wasincreasing the decomposition of peat soil, which improves the physical properties and chemical properties of peat soil.
Evaluasi Daya Gabung Hibrida Hasil Persilangan Half Dialel Lima Genotipe Cabai (Capsicum annuum L.) di Lahan Gambut Armaini, Armaini; Deviona, Deviona; Wardati, Wardati
Jurnal Agro Teknologi Tropika Vol 4, No 2 (2015)
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The objective of this study is to determine the value of general combining ability, and specific combining abilityhybrids of parental crosses by half-dialel scheme on the peat land. The experiment was carried out on the peatlandRimbo Panjang Faculty of Agriculture Riau University.The genotypes consisting of 15 crosses from IPB half dialelcrosses chili in three replicates. To analyze general combining ability (GCA) or specific combining ability (SCA)influence of the variable, analysis of variance for diallel cross according to Griffing’s method 2 was used. The resultshows, the highest value of general combining ability of stem diameter, fruit diameter, fruit weight and total weight perfruit were obtained from genotype C5. Genotype C159 has high value of general combining ability of plant height, stemdichotomous and crown width, and Genotype C 120 has high value of general combining ability of length fruit.Meanwhile the highest specific combining ability based on yield component is genotype C5xC120
Co-Authors , Deviona, , Al Ikhsan Amri Armaini, Armaini khusnul khotimah Nelvia Nelvia Noviria, Ade Solly Aryza