Evaluasi Status Hara Pada Penggunaan Lahan Multiple Cropping Di Dataran Rendah

Abstract

Evaluation of soil nutrient fertility is needed to inform the level of nutrient availability in the soil. This evaluation is intended to mitigate land degraded or critical land. So that the area of critical land can be reduced by carrying out land management to maintain soil fertility. This research was conducted on 3 land uses, (i.e. fields, orchad and rice fields) with multiple cropping and monoculture management. The research was carried out with 3 repetitions at 4 slopes (i.e.0-8%, 8-15%, and 16-25%). Soil samples were taken compositely at two depths (i.e.0-20 and 20-30 cm). The parameters analyzed was soil chemical properties (i.e.pH H2O, total N, available of P, K, Organic C, and C/N). The results showed that land use had a significant effect (p<0.05) on availability of organic C, while slope had no significant effect (p>0.05) on soil chemical properties variables. pH H2O was significantly correlated (p < 0.05) with organic C (r = 0.