Palem raja (Roystonea regia) merupakan salah satu anggota famili Arecaceae yang
menghasilkan sampah terutama dari daun-daun keringnya. Pemanfaatan sampah tersebut …

The bottom substrate is one of the main ecological factors that influence the structure of the
aquatic organism. Macrozoobenthos are the organisms living either in the bottom waters or …

Penurunan kesuburan tanah, produktivitas tanaman, dan pencemaran lingkungan
semuanya dapat disebabkan oleh penggunaan pupuk anorganik yang terus menerus …

The productivity of red ginger in Indonesia has decreased by 9,174 tons compared to 2017.
The decrease is due to the very limited area of red ginger production, the method of red …

Ex-tin mining land is a degraded land with low soil fertility and poor soil physical properties.
The research aimed to find the best ameliorant for the improvement of ex-tin mining soil and …

Andisol is a soil that develops from volcanic ash material, dominated by amorphous
aluminium silicate and Al-humus complex. This research was carried out at the Greenhouse …

Most of the activities of the use of organic fertilizers and natural additions of organic matter in
agricultural intensification fields in Indonesia have not been able to compensate for the rate …

This research was conducted to determine the effect of organic acids (OAs) application and
phosphate rock on soil P fractionation and its correlation with maize yields. This greenhouse …

As long as the issues with peat soil, particularly with some of its chemical qualities, can be
treated properly, it has the potential to be utilized as agricultural land. Empty oil palm fruit …

Biochar and compost applications are alternative in improving soil chemical properties, such
as Ultisol soil and utilizing the current abundance of biomass waste. Biochar has long …