Circular agriculture increases food production and can reduce N fertilizer use of commercial farms for tropical environments

Moreira, Silvino Guimarães; Hoogenboom, Gerrit; Nunes, Márcio Renato; Martin-Ryals, Ana; Sánchez, Pedro A.

doi:10.1016/j.scitotenv.2023.163031

Cited by 16 publications

(4 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, promoting practices like closedloop systems in agriculture becomes significant, allowing for the recycling of organic waste. This approach enables the retrieval of a considerable quantity of nutrients, particularly nitrogen, while simultaneously cutting down on agricultural production expenses [54]. The ongoing industrialization, urbanization, and transformation in rural landscapes contribute to a continual surge in generated waste that requires thoughtful management.…”

Section: Discussionmentioning

confidence: 99%

The Impact of Using Different Types of Compost on the Growth and Yield of Corn

Zapałowska,

Jarecki

2024

Sustainability

View full text Add to dashboard Cite

The cultivation of corn holds immense importance as a foundational global grain crop, catering to human sustenance and serving as vital animal feed. Moreover, corn plays a substantial role in biofuel production. Additionally, cultivating corn can have a positive effect on crop rotation by improving soil quality and reducing erosion. In a pot trial using six distinct compost variations derived from different organic wastes as fertilizers for GS210 corn, specific indices, such as Fv/Fm (0.80, 0.80, 0.81), Fv/F0 (4.07, 3.99, 4.03), PI (4.62, 4.22, 5.21), and RC/ABS (1.71, 1.68, 2.01), exhibited the highest values. Interestingly, mineral fertilization with NPK displayed significant benefits on various growth parameters like plant height (188.9 cm), cob length (17.50 cm), grains per cob (324.0), and thousand-grain weight (MTZ) (285.2). The difference in the cob grain count between NPK mineral fertilization and the control reached 168.5 grains, which was statistically confirmed. Furthermore, the grain’s protein content notably increased with mineral fertilization (9.5) compared to the control (8.5). While organic fertilizers showed lower outcomes (9.1–9.3) than NPK mineral fertilization, they generally outperformed the control (8.5). This prompts the need for future studies to assess the effectiveness of individual organic fertilizers in combination with mineral nitrogen fertilization.

show abstract

Section: Discussionmentioning

confidence: 99%

The Impact of Using Different Types of Compost on the Growth and Yield of Corn

Zapałowska,

Jarecki

2024

Sustainability

View full text Add to dashboard Cite

show abstract

“…Cattle manure is considered a valuable source of fertilizer because it is rich in nutrients (nitrogen, phosphorus, and potassium) (Moreira 2023). Reducing the negative impact of cattle manure and improving resource utilization rate have become important problems to be solved urgently in the development of animal husbandry (Alwaneen 2016).…”

Section: Discussionmentioning

confidence: 99%

Preparation of high-temperature and low-temperature-resistant solid microbial agent for cattle manure fermentation and effect on composting

Peng,

Yue,

Mao

et al. 2024

Environ Sci Pollut Res

View full text Add to dashboard Cite

Objective: We used microbiology and molecular biology techniques to screen out high temperature and low temperature resistant saprobiotics for compost and prepared a compound fermentation bacteria agent to rapidly ferment cattle manure into high-quality organic fertilizer in low temperature season.Methods: Conventional composting and high-throughput techniques were used to analyze the changes of physical and chemical indexes and biodiversity in the process of composting, from which high and low temperature resistant strains were obtained, and high temperature and low temperature resistant solid composite bactericides were prepared and added to composting to verify the effects of composite bactericides on composting.Results: The conventional composting cycle took 22 days, and the diversity of micro ora increased rst and then decreased. Composting temperature and microbial population were the key factors for the success or failure of composting. Two strains of high temperature tolerant bacteria and 6 strains of low temperature resistant bacteria were screened out and they were e cient in degrading starch, cellulose and protein. The high temperature and low temperature resistant solid bacterial agent were successfully prepared with adjuvant. The preparation could make the compost temperature rise quickly at low temperature, the high temperature lasted for a long time, the water content, C/N and organic matter fell quickly, and the contents of total phosphorus and total potassium were increased, and the seed germination index was signi cantly improved. Improve the composting effect. Conclusion:The solid composite bacterial agent can shorten the composting time at low temperature, and improve the composting e ciency and quality.

show abstract

“…However, these methods are mostly used for static simulations and do not possess predictive capabilities. System dynamic models can establish correlations between influencing factors and responsive results [21] and achieve visualized analysis and prediction of complex system operations by setting controllable factors in scenarios [22,23].…”

Section: Introductionmentioning

confidence: 99%

Simulation and Prediction of Greenhouse Gas Emissions from Beef Cattle

et al. 2023

View full text Add to dashboard Cite

Greenhouse gas emission is a key issue in the sustainable development of agriculture. To effectively predict the greenhouse gas emissions of beef cattle, a model is proposed based on system dynamics and greenhouse gas emission calculation methods, and a scenario is set as a ‘Straw to Beef’ project in Jilin Province. The model was built on a baseline emission scenario (feed precision: 60%, breeding environment: dry fattening farm, corn straw utilization: burning straw), with single- and comprehensive emission reduction scenarios considered, predicting trends and reduction potentials in greenhouse gas emissions from cattle breeding and straw burning in Jilin Province from 2013 to 2028, measured in CO2-eq (CO2 equivalent). The model also explored the impact of 11 controllable variables on greenhouse gas emissions. Results showed that (1) From 2013 to 2022, greenhouse gas emissions from straw burning and cattle breeding in Jilin Province increased significantly and had an annual growth rate of 6.51% in 2020. (2) Single emission reduction scenarios showed an increasing trend in greenhouse gas emissions, while comprehensive emission reduction scenarios showed a decreasing trend. Among them, the S2.2.1 scenario (feed precision: 80%, breeding environment: livestock barn manure pit, corn straw utilization: burning straw) had the strongest emission reduction ability in the single reduction scenario, the S3.2.2 scenario (feed precision: 80%, breeding environment: livestock barn manure pit, corn straw utilization: Feed-processing straw) had the strongest emission reduction ability in the comprehensive reduction scenario, reducing emissions by 5.10% and 69.24%, respectively, compared to the baseline scenario. This suggests that the comprehensive emission reduction scenarios which utilized straw resources reasonably can greatly reduce agricultural greenhouse gas emissions. (3) The optimal emission reduction scenario indicated that the higher the proportion of digestible energy in beef cattle’s total energy intake, the more perfect the fecal treatment process, and the higher the utilization rate of straw feed, the lower the greenhouse gas emissions. Therefore, to effectively reduce greenhouse gas emissions from cattle breeding and straw burning in Jilin Province, it is important to implement comprehensive emission reduction scenarios prioritizing the efficient utilization of straw resources and improving beef cattle management practices.

show abstract

Circular agriculture increases food production and can reduce N fertilizer use of commercial farms for tropical environments

Cited by 16 publications

References 61 publications

The Impact of Using Different Types of Compost on the Growth and Yield of Corn

The Impact of Using Different Types of Compost on the Growth and Yield of Corn

Preparation of high-temperature and low-temperature-resistant solid microbial agent for cattle manure fermentation and effect on composting

Simulation and Prediction of Greenhouse Gas Emissions from Beef Cattle

Contact Info

Product

Resources

About