Rija Sudirja

The Effect of a Combination of N, P, K and Biochar-Silica Fertilizers On CEC, C-organic, N, P, K Content of Plant and Yield of Rice on Inceptisols Jatinangor, Indonesia

Emma Trinurani Sofyan, Rija Sudirja, Dirga Sapta Sara, Farida Damayanti, Ania Citraresmini & Andina Kristina Putri · Asian Journal of Soil Science and Plant Nutrition · 2025

Inceptisols have enormous potential for cultivating lowland rice because of their wide distribution in Indonesia, but low fertility is one of the problems with Inceptisols. The experiment aims to determine the effect of a combination of N, P, K, and biochar-silica fertilizers on...

Open access Research Article 10.9734/ajsspn/2025/v11i1485

Addressing Water Hyacinth (Eichhornia crassipes) Problem through Composting: Exploring its Potential as a Organic Soil Amendment

Muhammad Farhan Nashrullah, Emma Trinurani Sofyan, Anni Yuniarti, Rija Sudirja & Tualar Simarmata · Journal of Agriculture and Ecology Research International · 2025

Water hyacinth (Eichhornia crassipes) is a rapidly growing aquatic weed with extreme environmental impacts. The primary focus of this research was to consider its application as compost for sustainable agriculture through the assessment of the contribution of composting to the qu...

Open access Research Article 10.9734/jaeri/2025/v26i3673