Judul: Adopsi program system of rice intensification teknik satu bibit per rumpun
Abstrak: One seedling per clump technique is one of the innovations to increase rice productivity which is environmentally friendly. The purpose of this study is to explore individual factors and innovation attributes relating to the innovation adoption decision of farmers to one seedling per clump technique on Purwasari village, Bogor District. Respondents were drawn at random by MS. Excel with the number 30. The results showed generally old aged farmers, rural landless, primary school graduates, had attended counseling, have organic and conventional farming experience, have interpersonal communication and behavioral characteristics not related to farmer adoption decisions one seedling per clump technique. The nature of innovation in the form of relative advantage, compatibility, complexity, trialability, and observability techniques associated with the adoption of one seedling per clump technique.
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Judul: Hubungan Karakteristik Inovasi Budidaya Padi Metode SRI (System Rice of Intensification) dengan Pengambilan Keputusan Adopsi oleh Petani
Abstrak: SRI (System Rice of Intensification) adalah suatu metode budidaya padi yang sedang digalakkan untuk meningkatkan produktivitas pertanian, namun masih menghadapi kendala dalam penerimaannya oleh masyarakat. Salah satu faktor yang berhubungan dengan pengambilan keputusan adopsi adalah karakteristik inovasi. Tujuan dari penelitian ini adalah menganalisis hubungan karakteristik inovasi dengan pengambilan keputusan adopsi dan menganalisis hubungan faktor internal dan eksternal dengan pengambilan keputusan adopsi. Metode penelitian menggunakan metode survey yang didukung dengan informasi kualitatif. Hasil dari penelitian ini adalah keuntungan relatif inovasi mendukung tahap konfirmasi; faktor kesesuaian inovasi mendukung tahap pengenalan; faktor kemudahan dicoba sangat mendukung tahap persuasi; faktor umur petani mendukung tahap pengenalan; dan dukungan ekonomi mendukung tahap pengenalan dan tahap konfirmasi.
Keyword: characteristi of innovation, decision making adoption, SRI (System Rice of Intensification), Human ecology, Agricultural activity, Late majority

Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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