Artikel (421)
The research examined the effect of ela sago compost on the soil chemical properties, growth, P-uptake, and yields of corn plants (Zea mays L) in Regosol soils. A randomized block design with a 2 x 4 factorial treatment was applied. The first factor was ela sago compost (B) with three dose levels: B...
JOURNAL OF TROPICAL SOILS; Vol. 30 No. 1: January 2025; 1-8 | 2024
While landslide determination has traditionally relied on topography and geology, the connection between soil characteristics and landslide potential remains a relatively unexplored area. This study sets out to bridge this gap by investigating the relationship between soil properties and their class...
JOURNAL OF TROPICAL SOILS; Vol. 30 No. 1: January 2025; 53-60 | 2024
The use of Trichoderma is one effort to manage healthy and environmentally friendly plants. This fertilizer is part of organic fertilizer; which farmers do not widely practice yet. This fertilizer has an impact that can increase nutrients and soil fertility. This study examined the impact of using T...
JOURNAL OF TROPICAL SOILS; Vol. 29 No. 3: September 2024; 159-166 | 2024
Depleting soil nutrients is among the significant factors affecting production and productivity in Ethiopia. From the nutrients, nitrogen is the most yield-limiting, which governs wheat production. Therefore, the study was conducted to examine the effect of nitrogen on the yield and yield components...
JOURNAL OF TROPICAL SOILS; Vol. 29 No. 2: May 2024; 59-66 | 2024
The use of Bacillus bacteria as biofertilizers (BF) increases since the detrimental effects of inorganic fertilizers on the agricultural environment spread out. The objective of this research was to study the influence of bio fertilizer and in combination with inorganic fertilizer on the productivit...
JOURNAL OF TROPICAL SOILS; Vol. 29 No. 3: September 2024; 143-148 | 2024
The rice productivity in Panai Tengah was still relatively low, producing 4.75 Mg ha-1, compared to the national production of 5 to 6 Mg ha-1. Low rice productivity was caused by limiting factors in land use, namely, physical and biological factors, soil chemistry, and agricultural systems. Providin...
JOURNAL OF TROPICAL SOILS; Vol. 29 No. 2: May 2024; 101-105 | 2024
East Kalimantan is a region that contributes to palm oil production. Industrial development in the area still needs to be improved in some plantations because there is a limiting palm oil productivity. This study examined the chemical properties of the soil on the PT. Gemilang Sejahtera Abadi (GSA) ...
JOURNAL OF TROPICAL SOILS; Vol. 29 No. 3: September 2024; 127-133 | 2023
Ultisols are one of the soil types that develop from claystone parent materials and are widely distributed in Indonesia, making them suitable for agricultural land use. Naturally, Ultisols have low soil fertility, such as acidic soil reactions and low base content;Â without proper management, the...
JOURNAL OF TROPICAL SOILS; Vol. 29 No. 3: September 2024; 115-125 | 2023
Indonesia has faced extensive poor soil quality and health for years.Anthropogenic, climatic, and plant pathogenic activities are the major contributing factors that degrade the soil's essential life-supporting system, such as the functional gene pool. One such gene is the rhizobacterial acdS, which...
JOURNAL OF TROPICAL SOILS; Vol. 29 No. 3: September 2024; 149-157 | 2023
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...
JOURNAL OF TROPICAL SOILS; Vol. 29 No. 2: May 2024; 93-100 | 2023