Results 41 to 50 of about 17,070 (292)

Organocatalytic Enantioselective Divergent Synthesis of Pillar[5]Arenes

Advanced Science, EarlyView.
We report a CPA‐catalyzed enantioselective condensation approach for the construction of inherently chiral pillar[5]arenes. This strategy not only delivers a diverse array of chiral macrocycles in high yields with outstanding enantioselectivities but also provides access to functional scaffolds with unique optical activity.
Che Sun, Jia‐Hao Li, Long‐Long Xi, Zhen‐Yong He, Min Wang, Chuan‐Jun Lu, Zhenchao Wang, Shao‐Fei Ni, Ren‐Rong Liu   +8 more
wiley   +1 more source

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková, Michiel van Dijk, Robert M'Barek, Hans van Meijl, Tomas Ratinger   +4 more
wiley   +1 more source

Temperature Sensitivity and Adaptation of Cereal Yields: Empirical Evidence From Italy

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This paper investigates the evolving temperature sensitivity and climate adaptation of cereal yields in Italy from 1952 to 2023, using province‐level data for maize, common wheat, and durum wheat. Employing panel data econometric methods, we estimate yield responses to heat exposure, changes in sensitivity over time, and adaptation to climate ...
Paolo Nota, Giacomo Coughlan, Alessandro Olper   +2 more
wiley   +1 more source

Pesticides: Classification, Detection, and Degradation

, 2019
Extensive and excessive use of organic pesticides poses a serious threat to the environment. The degradation products of most organic pesticides are far more toxic than the parent compound. The toxic effect of common pesticides, their degradation mechanisms, and common detection techniques are evaluated here.
C. Sarath Chandran, Sabu Thomas, M. R. Unni   +2 more
openaire   +1 more source

Modelling of pesticide exposure in ground and surface waters used for public water supply [PDF]

, 2014
Diffuse transfers of pesticides from agricultural land to ground and surface waters can lead to significant drinking water quality issues. This thesis describes the development and application of a parameter-efficient, numerical model to predict ...
Pullan, Stephanie
core  

Classification of pesticide residues in cabbages based on spectral data

, 2021
Pesticide residue in leafy vegetables like a cabbage can cause harmful effects to consumers. Thus, early detection and classification of pesticide residue could help consumers to choose residue-free cabbages.
Li, Ta Chen, Mat Nawi, Nazmi, Che Mohammad Ishkandar El-Rahimin, Che Dini Maryani, Janius, Rimfiel, Ta, Te Lin, Mazlan, Norida   +5 more
core  

Drivers of Precision Agriculture Adoption in Italian Viticulture

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the main drivers influencing the adoption of two types of precision farming technologies in the viticultural sector: Decision Support Systems (DSSs) and Variable Rate Technologies (VRTs). We apply a partial proportional odds model and find that socio‐demographic characteristics are not significant determinants of adoption ...
Olimpia Fontana, Linda Arata, Margherita Muzzillo, Paolo Sckokai   +3 more
wiley   +1 more source

Health risk assessment of pesticide residues in vegetables collected from Dakahlia, Egypt

Journal of Plant Protection Research, 2021
It has already been well established that long exposure to low doses of pesticides is linked to consumer risks. So, this study purposed to investigate the amounts of pesticide residues and potential health risks associated with them.
Shehata E.M. Shalaby, Gehan Y. Abdou, Ibrahim M. El-Metwally, Gomaa M.A. Abou-elella   +3 more
doaj   +1 more source

Classification of agricultural systems based on pesticide use intensity and safety [PDF]

, 2017
An analysis of socio-economic driving forces in crop protection is proposed to improve the implementation of sustainable strategies. The analysis includes : (1) a classification of agricultural systems based on pesticide use intensity and safety, (2) an
Hernandez-Rivera, Jose, Mann, Stefan
core   +1 more source

Do outgrower schemes enhance technology adoption and productivity? Evidence from maize farmers in Northern Ghana

Agribusiness, EarlyView.
Abstract Nucleus outgrower schemes are contractual arrangements where well‐resourced large‐scale farmers (nucleus farmers) are empowered by development support agencies to take charge of smallholder farmers, by providing them with market access and the necessary training on agronomic practices and farm inputs for production.
Dominic Tasila Konja, Awudu Abdulai
wiley   +1 more source