STUDI SUPLESI AIRTANAH DALAM DAN PEMANFAATAN VINNASE, KAPUR, SERTA FOSFOR UNTUK MEMPERBAIKI TINGKAT KESUBURAN TANAH MARGINAL (KASUS DI DESA BABAKAN KECAMATAN KERTAJATI MAJALENGKA)

• Main Author: Rohmat, Dede
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/1436
• Institution: Institut Teknologi Bandung

The objective of this research is to search and formulate how to improve soil fertility rate, specially soil chemical fertility on marginal land by applying deep groundwater and other inputs (Vinnase, Lime and Phosphor), and to see Vinnase distribution vertically because of leaching by infiltration. Research accomplish on experimental land of LP-ITB in Village Babakan Sub district Kertajati - Majalengka. The research done in one plant period from October 1995 - March 1996. Generally the research treatment is for two kinds of land, land with irrigation of deep groundwater (DP) and land without irrigation (TP). The treatment on DP and TP consist of singlly and multiply treatments of Lime (C), Phosfor (F), and Vinnase (V). Th group randomize design of split-split plot with factorial pattern used to either DP or TP. The parameters research, is (1) Vinnase distribution vertically; (2) watering and planting parameter, including effect pq pi and p2 on DP and ko, k, and k2 on TP, to nutritionand significancy of research factors and the combination for every land chemical parameter, (3) land chemical parameter, and (4) production and value of paddy product and soy beans. Results of this research show that : (1) On DP and TP, Giving of Vinnase causes accumulation of calsium (K-dd) at 0 - 13 cm deep. N-total distribution on DP is more accumulated in root zone. Whereas on TP, N-total is accumulated at 25 - 30 cm deep; (2) Watering and watering with plants on DP or TP (p, and p2) decreases intensity of significan of treatment factor effect, either single or double compared with plot without watering (po). Whereas on TP, intensity of significan of treatment factor effect is relatively the same; (3) Lime singlly on DP influences significan to the improvement of Mg-dd and KTK of soil on po, but on TP, lime gives significan effect of encreasing of actual and potential pH at k0, k1, k2, and to encreasing of Ca-dd on ko and k, as well and to decreasing of Cu-available on ko, k1, k2; vinnase singlly on