Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Andrew R Kniss"'
Publikováno v:
PLoS ONE, Vol 11, Iss 11, p e0165851 (2016)
[This corrects the article DOI: 10.1371/journal.pone.0161673.].
Externí odkaz:
https://doaj.org/article/f8dc7a4a62814824871b45f572d524bf
Commercial Crop Yields Reveal Strengths and Weaknesses for Organic Agriculture in the United States.
Publikováno v:
PLoS ONE, Vol 11, Iss 8, p e0161673 (2016)
Land area devoted to organic agriculture has increased steadily over the last 20 years in the United States, and elsewhere around the world. A primary criticism of organic agriculture is lower yield compared to non-organic systems. Previous analyses
Externí odkaz:
https://doaj.org/article/2d63ac6cd7254c25ab3feb0ce3b341b9
Autor:
Todd A Gaines, Abigail L Barker, Eric L Patterson, Philip Westra, Eric P Westra, Robert G Wilson, Prashant Jha, Vipan Kumar, Andrew R Kniss
Publikováno v:
PLoS ONE, Vol 11, Iss 12, p e0168295 (2016)
Glyphosate-resistant (GR) Kochia scoparia has evolved in dryland chemical fallow systems throughout North America and the mechanism of resistance involves 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) gene duplication. Agricultural fields in fo
Externí odkaz:
https://doaj.org/article/2b682c19bd8d4541997b953e674383f3
Autor:
Andrew R Kniss, Carl W Coburn
Publikováno v:
PLoS ONE, Vol 10, Iss 6, p e0131200 (2015)
Various indicators of pesticide environmental risk have been proposed, and one of the most widely known and used is the environmental impact quotient (EIQ). The EIQ has been criticized by others in the past, but it continues to be used regularly in t
Externí odkaz:
https://doaj.org/article/37af5fe7e12e43fc9a28e013e70af782
Autor:
Emmanuel Chiwo Omondi, Andrew R Kniss
Publikováno v:
PLoS ONE, Vol 9, Iss 12, p e115673 (2014)
This study evaluated whether grass intercropping can be used to alleviate Fe deficiency chlorosis in dry beans (Phaseolus vulgaris L.) grown in high pH, calcareous soils with low organic matter. Field studies were conducted at the University of Wyomi
Externí odkaz:
https://doaj.org/article/e74ffb2e1b1642a58025ed956698761e
Publikováno v:
Weed Science. 71:133-140
Development of integrated weed management strategies requires knowledge of weed emergence timing and patterns, which are regulated primarily by water and thermal requirements for seed germination. Laboratory experiments were conducted in fall 2017 to
Autor:
Andrew R. Kniss
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
Quantifying the toxicity of herbicides applied in the field is difficult. Here, the author applies a quotient to evaluate changes in relative toxicity over the past 25 years and finds that increased herbicide use does not necessarily constitute incre
Externí odkaz:
https://doaj.org/article/9227353df5644db380940918fd5dd0fb
Autor:
Osama S. Saleh, Andrew R. Kniss
Publikováno v:
Canadian Journal of Plant Science. 102:1053-1056
Competition is an important factor shaping plant communities. We studied the interaction of winter wheat ( Triticum aestivum L. “AP503cl2”) with neighbouring plant species under controlled greenhouse conditions. We observed that winter wheat leav
Autor:
Albert T. Adjesiwor, Andrew R. Kniss
Publikováno v:
Agronomy, Vol 10, Iss 11, p 1771 (2020)
Studies on crop response to light quality (red (R) to far-red (FR) light ratio) often recommend early weed removal to reduce the effects of shade avoidance responses on crop yield. However, it is unclear whether crops are able to distinguish reflecte
Externí odkaz:
https://doaj.org/article/ef75299532784e048545105f0919dc7d
Publikováno v:
Environmental Entomology. 50:832-841
Interseeding cover crops into standing grains can promote both agronomic and environmental benefits within agroecosystems. Producers must decide which cover crops are the best fit for their goals, and whether diverse cover crop mixtures provide benef