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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Agribusiness Journal
Ignatius Suprih Sudrajat
Universitas Sarjanawiyata Tamansiswa
Agriculture, Biological Sciences & Forestry Engineering

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Technology Acceptance Model (TAM) as Factors of Online Vegetable Purchasing Decision Avivah Rahmaningtyas; Nanang Kusuma Mawardi; Ignatius Suprih Sudrajat
Agribusiness Journal Vol 5, No 2 (2022): Agribusiness Journal
Publisher : UNIVERSITAS SEMBILANBELAS NOVEMBER KOLAKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (960.222 KB) | DOI: 10.31327/aj.v5i2.1852

Abstract

The growth of e-commerce and vegetable consumption become a good opportunities for vegetable sellers to expand their business online. Understanding how consumers perceive the two elements of TAM is important as it will help vegetable sellers formulate a strategy that applies specifically to their online store.  In this study, Structural Equation Modeling - Partial Least Squares (SEM-PLS) is used to analyze the data. The independent variables in this study were perceived usefulness (PU) and perceived ease of use (PEOU), meanwhile the dependent variable was purchase decision (KP). This study have met the criteria of validity and reliability. The result of this research is two component of TAM significantly affecting vegetable purchasing decision in online stores. Using significance level at 0.05, t-statistic for PEOU is 3,627 which is greater than 1.960, meanwhile t-statistic for PU is 5,394 which is greater than 1.960. The owner business of vegetable in online store should develop their platform to help consumer feel more convenient and efficient while purchasing the product online. 
Irrigation Deficit for Ciherang Rice Variety as a Benchmark for Developing Upland Rice Cultivation Systems Sri Widata; Zamroni Zamroni; Driska Arnanto; Darnawi Darnawi; Ahmad Ferry Baharudin; Yunianta Yunianta; Ignatius Suprih Sudrajat
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 6 (2025): December 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i6.2164-2170

Abstract

This study aims to evaluate the agronomic response of Ciherang rice plants during the vegetative and generative phases under deficit irigation conditions, as a benchmark for cultivation in dry land. This study used a factorial Completely Randomized Design with two factors. First, the level of water efficiency consisting of three levels, namely 300 ml, 600 ml, and 900 ml; second, the ratio of cattle manure and urea fertilizer also consisting of three levels, namely 80:20, 50:50, and 20:80. The observed variables include vegetative phase parameters, such as plant height, number of tillers, and dry weight of biomass, as well as generative phase parameters, such as percentage of filled grains and weight of filled grains per clump. The results showed that there was a significant interaction between water efficiency and fertilizer ratio during the generative phase, but no similar interaction was found during the vegetative phase. Furthermore, the combination of 600 ml water treatment with a 50:50 fertilizer ratio produced the highest percentage of filled grains and weight of filled grains. These results indicate that Ciherang rice can grow well under efficient water conditions, making it potentially suitable for cultivation in dry land.
Co-Authors Ahmad Ferry Baharudin Darnawi Darnawi Driska Arnanto Nanang Kusuma Mawardi Rahmaningtyas, Avivah Sri Widata Yunianta Yunianta Zamroni Zamroni