Sustainable maize intensification through site-specific nutrient management advice: Experimental evidence from Nigeria

Miet Maertens Oyakhilomen Oyinbo Tahirou Abdoulaye Jordan Chamberlin (2023, [Artículo])

There is growing evidence on the impacts of site-specific nutrient management (SSNM) from Asia. The evidence for Sub-Saharan Africa (SSA), where SSNM developments are more recent and where conditions concerning soil fertility and fertilizer use differ importantly from those in Asia, is extremely scarce. We evaluate a SSNM advisory tool that allows extension agents to generate fertilizer recommendations tailored to the specific situation of an individual farmer’s field, using a three-year randomized controlled trial with 792 smallholder farmers in the maize belt of northern Nigeria. Two treatment arms were implemented: T1 and T2 both provide SSNM information on nutrient use and management, but T2 provides additional information on maize price distributions and the associated variability of expected returns to fertilizer use. We estimate average and heterogenous intent-to-treat effects on agronomic, economic and environmental plot-level outcomes. We find that T1 and T2 lead to substantial increases (up to 116%) in the adoption of good fertilizer management practices and T2 leads to incremental increases (up to 18%) in nutrient application rates, yields and revenues. Both treatments improve low levels of nutrient use efficiency and reduce high levels of greenhouse gas emission intensity, after two years of treatment. Our findings underscore the possibility of a more gradual and sustainable intensification of smallholder agriculture in SSA, as compared with the Asian Green Revolution, through increased fertilizer use accompanied by improved fertilizer management.

Randomized Controlled Trial CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA TECHNOLOGY ADOPTION AGRICULTURAL EXTENSION GREEN REVOLUTION FERTILIZERS GREENHOUSE GAS EMISSIONS

The Scaling Scan: Una herramienta práctica para determinar oportunidades y desafíos para escalar innovaciones de manera sostenible

Lennart Woltering (2023, [Libro])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA INNOVATION ADOPTION SOCIAL INCLUSION ENVIRONMENTAL FACTORS SCALING UP

Too fast or too slow: the speed and persistence of adoption of conservation agriculture in southern Africa

Hambulo Ngoma Paswel Marenya Adane Tufa Md Abdul Matin Christian Thierfelder (2023, [Objeto de congreso])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA CONSERVATION AGRICULTURE INNOVATION ADOPTION FARMERS

The Scaling Scan: A practical tool to determine opportunities and challenges to sustainably scale innovations

Lennart Woltering (2023, [Libro])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA INNOVATION ADOPTION SOCIAL INCLUSION ENVIRONMENTAL FACTORS SCALING UP

Economics of crop residue management

Vijesh Krishna Maxwell Mkondiwa (2023, [Artículo])

More than five billion metric tons of agricultural residues are produced annually worldwide. Despite having multiple uses and significant potential to augment crop and livestock production, a large share of crop residues is burned, especially in Asian countries. This unsustainable practice causes tremendous air pollution and health hazards while restricting soil nutrient recycling. In this review, we examine the economic rationale for unsustainable residue management. The sustainability of residue utilization is determined by several economic factors, such as local demand for and quantity of residue production, development and dissemination of technologies to absorb excess residue, and market and policy instruments to internalize the social costs of residue burning. The intervention strategy to ensure sustainable residue management depends on public awareness of the private and societal costs of open residue burning.

Crop Biomass Residue Burning Environmental Effects CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA CROPS BIOMASS RESIDUES ENVIRONMENTAL IMPACT CLIMATE CHANGE SMALLHOLDERS TECHNOLOGY ADOPTION

Natural disasters and economic growth: a synthesis of empirical evidence

Fernando Antonio Ignacio González (2023, [Artículo, Artículo])

Natural disasters pose a serious threat globally and, in the future, their frequency and severity are expected to increase due to climate change. Empirical evidence has reported conflicting results in terms of the impact of disasters on economic growth. In this context, the present work seeks to synthesize the recent empirical evidence related to this topic. More than 650 estimates, from studies published in the last five years (2015-2020), are used. Meta-analysis and meta-regression techniques are employed. The review includes three sources (Scopus, Science Direct, and Google Scholar). The results identified the existence of a negative and significant combined effect (-0.015). Developing countries are especially vulnerable to disasters. The negative impact is greater for disasters that occurred in the last decade -in relation to previous disasters-. These findings constitute a call for attention in favor of mitigation and adaptation policies.

Disasters GDP meta-analysis meta-regression desastres crecimiento PIB meta-análisis meta-regresión CIENCIAS SOCIALES CIENCIAS SOCIALES

Field deployable Reverse Transcriptase–Recombinase Polymerase Amplification (RT-RPA) for detection of Maize chlorotic mottle virus (MCMV)

Margaret Redinbaugh Suresh L.M. (2022, [Artículo])

Maize Lethal Necrosis Diagnostics Recombinase Polymerase Amplification CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA MAIZE MAIZE CHLOROTIC MOTTLE VIRUS DISEASES DETECTION

Infant population’s death causes in Ciudad Juarez, 1953-1954

Guadalupe Santiago Quijada (2022, [Artículo, Artículo])

This article presents a study about the causes of death of the child population in Ciudad Juarez, at the beginning of the second half of the 20th century. In this document, emphasis has been placed on investigating the government response, on the activities carried out by local health institutions to deal with the diseases and prevent the number of infant deaths from continuing to increase; and in a particular way, in the actions of society to reduce suffering and protect children. Regarding the sources of information that were used, the data registered in the death books of 1953 and 1954 that are in the Civil Registry of Ciudad Juarez were explored and quantified. Also, the newspaper El Fronterizo and various bibliography were reviewed to establish the urban historical context in which this tragedy occurred.

Ciudad Juárez, salud, enfermedades, mortalidad infantil HUMANIDADES Y CIENCIAS DE LA CONDUCTA HUMANIDADES Y CIENCIAS DE LA CONDUCTA Ciudad Juarez demographic history diseases infant mortality

MLN disease diagnostics, MLN disease-free seed production and MLN disease management

Suresh L.M. (2023, [Objeto de congreso])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA DISEASES MAIZE PHENOTYPING GERMPLASM SYMPTOMS ECONOMIC ASPECTS

MLN disease diagnostics, MLN disease-free seed production and MLN disease management

Suresh L.M. (2023, [Objeto de congreso])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA YIELD LOSSES DISEASES MAIZE PHENOTYPING GERMPLASM SYMPTOMS ECONOMIC ASPECTS