ABSTRAK The reliance on unrenewable fossil fuel may cause an energy crisis, due to the lack of world fossil fuel stock. An alternative renewed energy of bio fuel is a promising solution in solving the severe crisis of energy. One of potential souces of bio fuel is Jatropha curcas (L.). The observation aims to ascertain band pattern and...

ABSTRACT The purpose of this research is to sudy the diversification of land macribiota, the effect of speed of erosion and potatoes productivity in intercropping land (Carica and Potato) if it is compared by potatoes monoculture. The research results show that (1) diversification of macrobiota in intercropping land is higher than in...

ABSTRAK Lobster air tawar (Cherax quadricarinatus), merupakan jenis udang yang memiliki nilai ekonomi tinggi. Ekspor udang budidaya cenderung meningkat tiap tahun sehingga memerlukan dukungan penelitian dalam mengembangkan sistem budidayanya. Salah satu permasalahan yang perlu mendapatkan perhatian adalah tingginya harga pakan...