Results 21 to 30 of about 83,451 (223)

SELECTIVITY OF HERBICIDES [PDF]

open access: yesPlant Physiology, 1946
With the introduction of new organic chemicals, the use of selective herbicides is finding broader application. Stimulated by war conditions, their use offers a promising method for increasing efficiency and reducing drudgery of agricultural production.
openaire   +2 more sources

Impact of Care and Nutrition Methods on the Content and Uptake of Selected Mineral Elements in Solanum tuberosum

open access: yesAgronomy, 2023
The aim of the study was to evaluate the content and uptake of macronutrients (P, Ca, Mg, K) in Solanum tuberosum tubers and the effect of care with biostimulants from a three-year field experiment conducted at the Agricultural Experimental Station in ...
Iwona Mystkowska   +5 more
doaj   +1 more source

UAS Imagery and Computer Vision for Site-Specific Weed Control in Corn [PDF]

open access: yesarXiv, 2022
Currently, weed control in a corn field is performed by a blanket application of herbicides which do not consider spatial distribution information of weeds and also uses an extensive amount of chemical herbicides. In order to reduce the amount of chemicals, we used drone based high-resolution imagery and computer-vision techniwue to perform site ...
arxiv  

An individual‐based model of seed‐ and rhizome‐propagated perennial plant species and sustainable management of Sorghum halepense in soybean production systems in Argentina

open access: yesEcology and Evolution, 2019
Perennial plants which propagate through both seeds and rhizomes are common in agricultural and nonagricultural systems. Due to their multifaceted life cycle, few population models are available for studying such species.
Chun Liu   +5 more
doaj   +1 more source

A Low-cost Robot with Autonomous Recharge and Navigation for Weed Control in Fields with Narrow Row Spacing [PDF]

open access: yesarXiv, 2021
Modern herbicide application in agricultural settings typically relies on either large scale sprayers that dispense herbicide over crops and weeds alike or portable sprayers that require labor intensive manual operation. The former method results in overuse of herbicide and reduction in crop yield while the latter is often untenable in large scale ...
arxiv  

Evolved polygenic herbicide resistance in Lolium rigidum by low‐dose herbicide selection within standing genetic variation

open access: yesEvolutionary Applications, 2013
The interaction between environment and genetic traits under selection is the basis of evolution. In this study, we have investigated the genetic basis of herbicide resistance in a highly characterized initially herbicide‐susceptible Lolium rigidum ...
Roberto Busi, Paul Neve, Stephen Powles
doaj   +1 more source

Recurrent Selection by Herbicide Sublethal Dose and Drought Stress Results in Rapid Reduction of Herbicide Sensitivity in Junglerice

open access: yesAgronomy, 2020
Echinochloa colona (junglerice) is a problematic global weed for many crops, primarily controlled with herbicides. Drought stress alters the overall plant physiology and reduces herbicide efficacy. This research aimed to study the joint effect of drought
Lariza Benedetti   +6 more
doaj   +1 more source

Hyperspectral Analysis for Discriminating Herbicide Site of Action: A Novel Approach for Accelerating Herbicide Research

open access: yesSensors, 2023
In agricultural weed management, herbicides are indispensable, yet innovation in their modes of action (MOA)—the general mechanisms affecting plant processes—has slowed.
Zhongzhong Niu   +6 more
doaj   +1 more source

Using UAS Imagery and Computer Vision to Support Site-Specific Weed Control in Corn [PDF]

open access: yesarXiv, 2022
Currently, weed control in a corn field is performed by a blanket application of herbicides that do not consider spatial distribution information of weeds and also uses an extensive amount of chemical herbicides. To reduce the amount of chemicals, we used drone-based high-resolution imagery and computer-vision techniques to perform site-specific weed ...
arxiv  

Using RNA-seq to characterize responses to 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor herbicide resistance in waterhemp (Amaranthus tuberculatus)

open access: yesBMC Plant Biology, 2019
Background Waterhemp (Amaranthus tuberculatus (Moq.) J.D. Sauer) is a problem weed commonly found in the Midwestern United States that can cause crippling yield losses for both maize (Zea mays L.) and soybean (Glycine max L. Merr).
Daniel R. Kohlhase   +3 more
doaj   +1 more source

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