
Agronomy, Journal Year: 2024, Volume and Issue: 14(10), P. 2219 - 2219
Published: Sept. 26, 2024
The rice–crab co-culture (RC) system is a multidimensional integrated farming model with significant potential for balancing ecological and economic benefits in paddy fields. However, improper nitrogen (N) fertilizer application exacerbates greenhouse gas (GHG) emissions, degrades water quality, disrupts the balance of RC ecosystem. Therefore, optimizing improving N management strategies crucial to maximize its benefits. This study conducted two-year field experiment assess impact on productivity, sustainability, systems. Comparisons were made compare rice crab productions, GHG net ecosystem benefit (NEEB) between monoculture (RM) systems under different rates (0, 150, 210, 270 kg ha−1) aim identifying optimal rate system. results showed that 210 ha−1 improved agronomic traits use efficiency, leading 0.4% increase yield (7603.1 compared maximum RM at ha−1. At this rate, surface quality was crabs, resulting highest yields (370.1 average weights (81.1 g). lower reduced intensity (GHGI) by 13.7% NEEB reached 8597.5 CNY ha−1, which 1265.7% higher than In summary, conserves resources, increases yields, reduces thereby synergistically enhancing both Optimizing has greater other innovative models, efficiency should be further investigated.
Language: Английский