Results 111 to 120 of about 402,690 (217)

THEFT AND RURAL POVERTY: RESULTS OF A NATURAL EXPERIMENT [PDF]

open access: yes
This paper investigates the relationship between theft and poverty in rural areas. Following a disputed presidential election, fuel supply to the highlands of Madagascar was severely curtailed in early 2002, resulting in a massive -- if temporary ...
Fafchamps, Marcel, Minten, Bart
core   +1 more source

Estimating Maize Crop Height and Aboveground Biomass Using Multi-Source Unmanned Aerial Vehicle Remote Sensing and Optuna-Optimized Ensemble Learning Algorithms

open access: yesRemote Sensing
Accurately assessing maize crop height (CH) and aboveground biomass (AGB) is crucial for understanding crop growth and light-use efficiency. Unmanned aerial vehicle (UAV) remote sensing, with its flexibility and high spatiotemporal resolution, has been ...
Yafeng Li   +9 more
doaj   +1 more source

Crime and Poverty: Evidence from a Natural Experiment [PDF]

open access: yes
This paper investigates the relationship between poverty and crime. Following a disputed presidential election, fuel supply to the highlands of Madagascar was severely curtailed in early 2002, resulring in a massive - if temporary - increase in poverty ...
Bart Minten, Marcel Fafchamps
core  

Evaluating Plant Brushing as a Strategy for Height Control in Edible Crop Species [PDF]

open access: yes, 2018
Greenhouse growers producing edible crops can encounter specific challenges when optimizing growing conditions. One challenge is soft growth associated with rapid tissue expansion. Soft growth can lead to plants falling over or soft, floppy leaves. These
Birnstihl, Dan
core   +1 more source

Machine vision based plant height estimation for protected crop facilities

open access: yesComputers and Electronics in Agriculture
The increasing demand for quality, year-round food production in limited space has led to the widespread adoption of protected cropping. Effectively monitoring and maintaining crops within these facilities requires substantial labour and expertise. Traditional manual monitoring is labour intensive and time consuming.
Namal Jayasuriya   +3 more
openaire   +2 more sources

Changes in American and British Stature Since the Mid-Eighteenth Century: A Prelimanary Report on the Usefulness of Data on Height... [PDF]

open access: yes
This paper is a progress report on the usefulness of data on physical height for the analysis of long-ten changes in the level of nutrition and health on economic, social, and demographic behavior. It is based on a set of samples covering the U.S.
James Trussell   +4 more
core  

Using legume-based mixtures to enhance the nitrogen use efficiency and economic viability of cropping systems - Final report (LK09106/HGCA3447) [PDF]

open access: yes, 2013
As costs for mineral fertilisers rise, legume-based leys are recognised as a potential alternative nitrogen source for crops. Here we demonstrate that including species-rich legume-based leys in rotations helps to maximise synergies between agricultural ...
Baddeley, J. A.   +19 more
core  

Comparison of Regression, Classification, Percentile Method and Dual-Range Averaging Method for Crop Canopy Height Estimation from UAV-Based LiDAR Point Cloud Data

open access: yesDrones
Crop canopy height is a key structural indicator that is strongly associated with crop development, biomass accumulation, and crop health. To overcome the limitations of time-consuming and labor-intensive traditional field measurements, Unmanned Aerial ...
Pai Du, Jinfei Wang, Bo Shan
doaj   +1 more source

Effect of plant biomass and their incorporation depth on organic wheat produc-tion in Kenya [PDF]

open access: yes, 2007
Intensive agricultural technologies introduced in Africa some six decades ago paved the way for extensive land clearing and destruction of organic materials, development of high yielding crop varieties under monoculture and replacement of landraces.
Birech, Rhoda, Freyer, Bernhard
core  

EVALUATION OF EFFECTIVE MICROORGANISMS (EM) TECHNOLOGY IN MAIZE (Zea mays L.) GROWTH, DEVELOPMENT AND YIELD IN MOROGORO TANZANIA [PDF]

open access: yes, 2010
The field experiment was conducted at Tushikamane Centre Kilakala, Morogoro Tanzania to investigate the effect of EM technology on maize (Zea mays L.) growth, development and yield.
CHILAGANE, DAUDI AMOS   +3 more
core  

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