Jejak Lahan Sistem Pertanian Terpadu Tanaman-Ternak di Kabupaten Bojonegoro, Jawa Timur
Land footprint is one of indicator of ecological capacity for developing sustainable agriculture systems. The study aimed to evaluate ecological capacity of integrated farming agriculture-livestock through land footprint in order to develop integrated sustainable agriculture. Research was conducted in May-August 2019 at Sekaran Village, Bojonegoro District, East Java, Indonesia. Food availability index (FAI) and feed carrying capacity index (FCC) was calculated from reports and interview. Evaluation showed annual FAI was 3.4 and FCC was 7.2 those indicated sufficiency status with foodland footprint was 143.2 ha and cattleland footprint was 759.1 ha. Total land footprint for food-feed was 759.1 ha valued below total available land for agronomic activities, i.e., 1,574 ha indicating high ecological capacity to support integrated farming systems. However, for April-May had FCC < 1 indicated insecurity fodder availability to support existing cattle population. Based on feed availability, maximum amount for cow breeding stock was 713 and for fattening was 24 cows. The fattening population could be increased up to 1,590-2,515 by increasing fodder availability through silage production, planting king grass and drought tolerant tree crops to sustain the integration.