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Zulfatri, Zulfatri
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Agriculture, Biological Sciences & Forestry Environmental Science

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Journal : Journal of Tropical Soils

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Effect Application of Cellulolytic Bacteria Consortium And Palm Kernel Ash on Red Chili Plants in Peat Soil gusmawartati, gusmawartati gusmawartati; Zulfatri, Zulfatri; Nabila, Nabila
JOURNAL OF TROPICAL SOILS Vol 30, No 2: May 2025
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2025.v30i2.97-102

Abstract

Limited agricultural land in Indonesia makes peatland an alternative land for agricultural intensification. Peat soil has a low fertility, so applying cellulolytic bacteria and palm oil shoot ash is recommended. This study aimed to determine the effect of cellulolytic bacteria consortium and oil palm shoot ash on the growth and yield of red chilies on peat soils. The research was conducted in Empat Balai Village, Kampar. The study used a factorial in a completely randomized design (3x3) and three replications. The first factor was the cellulolytic bacteria consortium (0, 20, and 30 mL polybag-1), and the second factor was palm ash (0, 3, and 6 Mg ha-1 equivalent to 0.126 and 252 g polybag-1). The application of cellulolytic bacteria consortium and its interaction with oil palm shoot ash had no significant effect on all observed variables. While, the application of palm ashes significantly affected plant height, stem diameter, number of fruits, and fruits weight.
Effects Nutrient Additives of NPK Fertilizer and Coconut Water on the Yield of White Oyster Mushroom (Pleurotus ostreatus) Alfarizi, Muhammad Salman; Gusmawartati, Gusmawartati; Zulfatri, Zulfatri
JOURNAL OF TROPICAL SOILS Vol. 27 No. 1: January 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i1.1-7

Abstract

White oyster mushroom (Pleurotus ostreatus) requires a source of nutrients for growth and development. The provision of NPK fertilizer aims to increase the source of media nutrients so that the results obtained are better in quantity and quality. Growth regulators can stimulate the relatively long growth of oyster mushroom mycelium. Growth regulators contain hormones that can support growth rates. One alternative natural growth regulator that can be used is coconut water. The research was carried out at the oyster mushroom kumbung at Pekanbaru, using a completely randomized design, consisting of 2 factors and three replications. The first factor was NPK fertilizer consisting of 4 levels (0, 7.5, 10, 12.5) g per baglog. The second factor was coconut water consisting of 4 levels (0, 3, 6, 9) ml per baglog. Data were analyzed using Analysis of Variance and further tested using DNMRT level 5%. The results showed that adding 10 g of NPK fertilizer and 6 ml of coconut water per baglog was a better dose for the number of fruit bodies, fresh fruit body weight, fruit cap diameter, fruit stalk length, and biological efficiency.
Effect Application of Cellulolytic Bacteria Consortium And Palm Kernel Ash on Red Chili Plants in Peat Soil gusmawartati, gusmawartati gusmawartati; Zulfatri, Zulfatri; Nabila, Nabila
JOURNAL OF TROPICAL SOILS Vol. 30 No. 2: May 2025
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2025.v30i2.97-102

Abstract

Limited agricultural land in Indonesia makes peatland an alternative land for agricultural intensification. Peat soil has a low fertility, so applying cellulolytic bacteria and palm oil shoot ash is recommended. This study aimed to determine the effect of cellulolytic bacteria consortium and oil palm shoot ash on the growth and yield of red chilies on peat soils. The research was conducted in Empat Balai Village, Kampar. The study used a factorial in a completely randomized design (3x3) and three replications. The first factor was the cellulolytic bacteria consortium (0, 20, and 30 mL polybag-1), and the second factor was palm ash (0, 3, and 6 Mg ha-1 equivalent to 0.126 and 252 g polybag-1). The application of cellulolytic bacteria consortium and its interaction with oil palm shoot ash had no significant effect on all observed variables. While, the application of palm ashes significantly affected plant height, stem diameter, number of fruits, and fruits weight.
The Growth and Yield of Upland Rice (Oryza sativa L.) Applied by Rice Husk Zeolite and Potassium Fertilizer Nelvia, Nelvia; Idwar, Idwar; Zulfatri, Zulfatri; Winri, Desra
JOURNAL OF TROPICAL SOILS Vol. 29 No. 2: May 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i2.93-100

Abstract

The productivity of upland rice on sub-optimal land such as Ultisol is low. Increasing rice productivity can be attempted, for example, by applying rice husk zeolite and K fertilizer. This research aims to study the interaction of rice husk zeolite with K fertilizer on the growth and yield of upland rice on Ultisol. The research was conducted at the Soil and Greenhouse Laboratory, Faculty of Agriculture, University of Riau, from June to October 2022. The research was conducted experimentally in a factorial with a completely randomized design (CRD). The first factor was rice husk zeolite consisting of 3 levels (0, 200, and 400 kg ha-1), and the second factor was K fertilizer consisting of 3 levels (0, 50, and 100 kg K2O ha-1), each interaction repeated three times. The results showed that the combination value of rice husk zeolite at a dose of 200 kg ha-1 with K fertilizer at a dose of 50 kg K2O ha-1 increased the number of healthy grains per panicle by 21%, the proportion of healthy grain by 14% and the weight of dry milled grain by 32.25% compared to without rice husk zeolite and K fertilizer.
Co-Authors Alfarizi, Muhammad Salman Armaini, Armaini Arman Effendi Gusmawartati Gusmawartati gusmawartati, gusmawartati gusmawartati Idwar, Idwar Nabila, Nabila Nelvia Nelvia Saputra, Nadi Winri, Desra Zulni, Mega