Results 61 to 70 of about 119,559 (306)

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

Data-Efficient Sowing Position Estimation for Agricultural Robots Combining Image Analysis and Expert Knowledge

open access: yesAgriculture
We propose a data-efficient framework for automating sowing operations by agricultural robots in densely mixed polyculture environments. This study addresses the challenge of enabling robots to identify suitable sowing positions with minimal labeled data
Shuntaro Aotake   +3 more
doaj   +1 more source

Integrated effect of crop sowing date and herbicide stress on fitness of Bromus diandrus Roth

open access: yesSpanish Journal of Agricultural Research, 2015
Bromus diandrus Roth is a common weed species that has increased in no-tillage dry-land cereal fields in NE Spain because of the limited control options.
Addy L. García   +3 more
doaj   +1 more source

The effect of sowing date on infection of sugar beet by Polymyxa betae

open access: yes, 1992
The effect of sowing date on the infection of sugar-beet seedlings by Polymyxa betae was examined in a small-plot experiment on a naturally infested site. Seed was sown on seven occasions at weekly intervals from late March to early May. From each sowing,
C. A. GILLIGAN   +5 more
core   +1 more source

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen   +5 more
wiley   +1 more source

Real‐time monitoring of root dielectric properties for assessing crop plant damage caused by foliar application of glyphosate

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise There is a knowledge gap regarding how foliar injury and restricted water uptake can be detected by measuring root dielectric response. This pot study nondestructively evaluated the efficiency of real‐time dielectric measurement to monitor the effects of glyphosate spraying.
Imre Cseresnyés   +2 more
wiley   +1 more source

Sowing Games

open access: yes, 1996
. At the Workshop, John Conway and Richard Guy proposed the class of "sowing games", loosely based on the ancient African games Mancala and Wari, as an object of study in combinatorial game theory.
Sowing Games, Jeff Erickson
core  

Rapid assessment of fern spore quality using microscale electrical conductivity testing

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Ex situ spore banks are essential for fern conservation and research, yet traditional germination tests for assessing spore quality are time consuming and labor intensive. We explored whether electrical conductivity (EC), a rapid proxy for seed vigor, could offer an efficient alternative for evaluating fern spore quality. Methods Using
Yao‐Moan Huang   +5 more
wiley   +1 more source

Perfecting of a construction of the unit for pre-sowing soil cultivation and sowing APPN-2,1

open access: yesАграрная наука Евро-Северо-Востока, 2016
One of directions of modernising of agricultural machinery for plant growing is combination of operations on the basis of the multipurpose assemblies, capable to be adapted for varying conditions of production of agricultural products by sweeping change ...
S. L. Dyomshin   +2 more
doaj  

A biomimetic ducted nipple reveals gestational age‐dependent deficits in suction generation in a neonatal pig model

open access: yesThe Anatomical Record, EarlyView.
Abstract All infant mammals must suckle in order to effectively acquire milk from a nipple. Yet, not all infants are able to do so. Preterm infants in particular face significant feeding challenges, often failing to establish successful breastfeeding due to complex neurophysiologic challenges.
Max Sarmet   +9 more
wiley   +1 more source

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