Pengelolaan Tanaman Penutup Tanah untuk Meningkatkan Produksi Jagung Manis Di Lahan Kering Vertisol Lombok

One of the obstacles in increasing maize production Indonesia is low efficiency fertilizer use by plants as a result levels organic matter soil. Although it only occupies portion approximately 2-10%, role played soil very large, both physical, chemical and biological aspects. practical efficient alternatives to increase through management cover crops (TPT). In this study, individually or after being combined into one, three types TPT were stocked before harvest predecessor plant (rice). As comparison, plots without also provided. Rice litter together with biomass from each treatment was returned rice harvested separate plot pattern. plot, fertilization treatments made dose 0 kg/ha NPK, 100 200 NPK 300 NPK. The experimental results showed that had positive impact on growth yield sweet corn vertisol soils. Provision form mixture cowpea, mung bean krotalaria tended have better effect than individual administration. From experiment, known provision precursor can reduce fertilizers 50-60% maximum requirement.