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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Mitra Sains
Ramlan Ramlan
Universitas Tadulako
Agriculture, Biological Sciences & Forestry Engineering

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Pertumbuhan Dan Produktivitas Cabai Rawit (Capsicum frutescens L.) Dengan Aplikasi Mulsa dan Pupuk NPK Mutiara Nurhidayah Nurhidayah; Ramlan Ramlan; Anthon Monde
Mitra Sains Vol 6 No 1 (2018): Januari
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/mitrasains.v6i1.311

Abstract

This research starting in August to November 2014, which is located in the Porame village,Kinovaro District, Sigi Regency, Central Sulawesi province to the altitude of 235 meters above sea level. The Experimental method used was randomized block design in factorial with three replications. The first factor consisted of M0=unmulched, M1=black-silvered plastic mulch, M2=sawdust mulch and M3=rice straw-mulch, whereas the second factor were four NPK Mutiara dosages; P1=NPK dose 100 kg.ha-1 ,P2=NPK dose 200 kg.ha-1, and NPK dose 300 kg.ha-1. Each treatment was repeated 3 times so that overall there are 48 experimental units. The observed variables were the growth parameter root long ,plant height, tuber diameter, soil moisture content, weed dry weight, and yield (number and weight of chilli). The result showed that application of mulches give significant affect of all growth dan yield parameter, and NPK Mutiara fertilizer dosages were significant effect to root long, plant height , number of fruits per plant, fruit weight per plant, fruit weight per plot, fruit weight per hectare and soil moisture content. The best mulch and dose for chilli crops in upland area was black silvered plastic mulch whith NPK Mutiara fertilizer dose 300 kg/ha of 7.32 ton.ha-1
Analysis of Potassium (K) Uptake and Plant Growth of Lettuce (Lactuca sativa L.): Effect of AB Mix Concentrations and NPK Fertilizer Doses Ramlan Ramlan; Siti Hijrah; Adnan Khaliq
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1925-1934

Abstract

Soil is a crucial growing medium that supplies nutrients essential for plant development. This study aimed to evaluate the effect of AB Mix concentrations and NPK fertilizer dosages on potassium (K) uptake, growth, and yield of lettuce (Lactuca sativa L.). The experiment was conducted from June to September 2024 in Nupabomba Village, Donggala Regency, and in the Soil Science Laboratory of Tadulako University, using a factorial Randomized Complete Block Design (RCBD). The first factor was AB Mix concentration: A0 (control), A1 (24 ml/3 L), and A2 (1,800 ppm = 27 ml/3 L). The second factor was NPK dosage: D0 (control), D1 (0.7 g/7 kg), and D2 (1.4 g/7 kg). Data were analyzed using ANOVA followed by the Honest Significant Difference (HSD) test at a 5% significance level. Results showed that AB Mix and NPK fertilizer significantly affected potassium content in plant tissue but did not significantly affect soil pH, C-organic content, soil potassium levels, or potassium uptake. Treatments significantly increased plant height, number of leaves, and fresh weight, while dry weight was unaffected. These findings indicate that appropriate AB Mix and NPK combinations enhance lettuce growth and yield by improving tissue potassium content without altering soil properties.
Co-Authors Adnan Khaliq Anthon Monde Nurhidayah Nurhidayah Siti Hijrah