Results 31 to 40 of about 192,599 (270)
Optimizing maize–bean cropping systems for sustainable intensification in southern Ethiopia
Agronomy Journal, Volume 114, Issue 6, Page 3283-3296, November/December 2022., 2022 Abstract Declining productivity and scarcity of cultivable land in smallholder systems call for exploring sustainable intensification options to increase productivity. Field experiments were conducted at five sites (Sites 1–5) of the Sidama region, southern Ethiopia, in 2018 and 2019 to determine the effects of cropping systems on maize (Zea mays L ...
Tigist Yimer +3 more
wiley +1 more source
Replacing fallow with field pea in wheat production systems across western Nebraska
Agronomy Journal, Volume 114, Issue 6, Page 3329-3346, November/December 2022., 2022 Abstract Integration of field pea (Pisum sativum L.) (FP) into dryland cropping systems has increased due to ecological and economic benefits, paired with a growing market for pea‐derived products. Challenges exist in the High Plains that limit the integration of crop rotations to replace fallow periods with FP in wheat (Triticum aestivum L.)‐based ...
Samuel T. Koeshall +4 more
wiley +1 more source
Autoregression as a means of assessing the strength of seasonality in a time series
Population Health Metrics, 2003 Background The study of the seasonal variation of disease is receiving increasing attention from health researchers. Available statistical tests for seasonality typically indicate the presence or absence of statistically significant seasonality but do ...
Upshur Ross EG +3 more
doaj +1 more source
Seasonality of tuberculosis in the Republic of Korea, 2006-2016 [PDF]
Epidemiology and Health, 2018 OBJECTIVES While the seasonality of notified tuberculosis has been identified in several populations, there is not a descriptive epidemiological study on the seasonality of tuberculosis in Korea.
Eun Hee Kim, Jong-Myon Bae
doaj +1 more source
Conflict Management and Peace Science, 2020 This paper uses one of the largest changes to labor demand in developing countries—harvest—to examine how the returns to fighting vs. working impact the intensity of conflict. Exploiting the exogenous allocation and timing of harvest across Afghanistan, Iraq, and Pakistan, we find that the onset of harvest reduces the number of insurgent attacks by ...
Jenny Guardado, Steven Pennings
openaire +3 more sources
Does agroecosystem management mitigate historic climate impacts on dryland winter wheat yields?
Agronomy Journal, Volume 114, Issue 6, Page 3515-3530, November/December 2022., 2022 Abstract Global studies that quantify climate effects on crop yields using top‐down spatial frameworks are invaluable for assessing generalized effects on world food supplies, yet do not contain the resolution necessary to identify local mediating effects of management. Our objectives were to identify (a) what climate factors have historically affected
Grace L. Miner +6 more
wiley +1 more source
The complex transmission seasonality of hand, foot, and mouth disease and its driving factors
BMC Infectious Diseases, 2019 Background The transmission rate seasonality is an important index for transmission dynamics in many childhood infections, and has been widely studied in industrialized countries. However, it has been neglected in the study of pathogens in China. Methods
Jijun Zhao, Xiangyu Hu
doaj +1 more source
A dynamic Parrondo's paradox for continuous seasonal systems [PDF]
Nonlinear Dyn 102 (2020), 1033-1043, 2019 We show that planar continuous alternating systems, which can be used to model systems with seasonality, can exhibit a type of Parrondo's dynamic paradox, in which the stability of an equilibrium, common to all seasons is reversed for the global seasonal system.
arxiv +1 more source
Yield estimation of summer maize based on multi‐source remote‐sensing data
Agronomy Journal, Volume 114, Issue 6, Page 3389-3406, November/December 2022., 2022 Abstract Accurately estimating regional‐scale crop yields is substantial in determining current agricultural production performance and effective agricultural land management. The Yuncheng Basin is an important grain‐producing area in the Shanxi Province. This paper used Sentinel 2A with a spatial resolution of 10 m and MODIS with a temporal resolution
Jingshu Wang +4 more
wiley +1 more source
Jornal Brasileiro de Psiquiatria, 2012 OBJECTIVE: Studies conducted mainly in countries located in the Northern Hemisphere have shown that season of birth influences mood seasonality. Greater mood seasonality has been observed for individuals born during spring/summer months than those born ...
Taciano L. Milfont +4 more
doaj +1 more source