
Published: Feb. 26, 2024
Maize-tropical forages intercropping: an evaluation above and below the soil surface Tropical soils, which cover 80% of Brazil's agricultural land, are susceptible to erosion, leading biodiversity loss reduced carbon sequestration, fertility, organic matter content.The use plant residues or crop cover, particularly from tropical forage species like Urochloa spp.and Megathyrsus spp., was identified as effective means preventing erosion.These species, when intercropped with maize, produces residue that degraded slowly, providing longer protection.However, managing competition among proved challenging.Factors such climatic conditions, characteristics, nitrogen rate, herbicide management, intercropping sowing pattern affected growth productivity maize forage.This study aimed perform a meta-analysis maize-brachiaria data, evaluate performance in integrated way, analyze characteristics root system monoculture systems.Intercropping systems, demonstrated superior over monocropping several aspects.Relative monocropping, grain yield by 5.6% Brachiaria grass biomass production 64%.However, under specific conditions subtropical climate, early season sowing, certain fertilization rates, these penalties were minimized.Despite reduction, systems showed better resource utilization productivity, 25% higher total at harvest.The land equivalent ratio (LER) consistently higher, indicating optimized utilization.Intercropping significantly increased biomass, volume, length, contributing aggregation, protection against nutrient cycling, deep fixation.Intercropping boosted profits average 92.1% compared monocropping.In conclusion, offer robust strategy for simultaneous diversification intensification use, minor no trade-off yield, highlighting their potential sustainable agriculture.Despite some penalties, management practices climate could outperform terms production, development, utilization, profitability, sustainability.
Language: Английский