Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Wechsler, Seth James"'
Autor:
Fernandez-Cornejo, Jorge, Nehring, Richard, Osteen, Craig, Wechsler, Seth James, Martin, Andrew, Vialou, Alex
Pesticide use has changed considerably over the past five decades. Rapid growth characterized the first 20 years, ending in 1981. The total quantity of pesticides applied to the 21 crops analyzed grew from 196 million pounds of pesticide active ingre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43a079133bbf8b6153a262aed74805c1
Autor:
Wechsler, Seth James
Recent evidence from field tests and laboratory studies suggest that rootworms are adapting to the toxins produced by genetically modified, insect resistant (Bt) seeds. Given that rootworms cause over 1 billion dollars in yield losses and treatment c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cda844a21e7c13ba6bafe417c63e5ed3
This study presents recent results on the impact of adopting Bt corn on farm profits, yields, and seed and insecticide use. The study employs an econometric model that corrects for self-selection and simultaneity and uses farm-level survey data for 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::0da80d2da3ab2e57c4ce08b3de068c02
http://purl.umn.edu/124257
http://purl.umn.edu/124257
Autor:
Nehring, Richard F., Martin, Andrew, Fernandez-Cornejo, Jorge, Hallahan, Charles B., Vialou, Alexandre, Wechsler, Seth James, Grube, Arthur
This paper presents findings on the use of HT corn and quality-adjusted herbicide use for 12 key corn producing states using a panel data set for 1986-2008. Our preliminary findings indicate an insignificant impact of HT corn on herbicide use, condit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::9c01ae0db066a3a42ce5ddd207121b96
http://purl.umn.edu/103369
http://purl.umn.edu/103369
This study examines the impact of adopting Bt corn on farm profits, yields, and insecticide use. The study employs an econometric model that corrects for self-selection and simultaneity. The model is estimated using nationwide farm-level survey data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83d4d8de9ab0a3001f5fc6b524645862
Autor:
Fernandez-Cornejo, Jorge, Hallahan, Charles B., Nehring, Richard F., Wechsler, Seth James, Grube, Arthur
This paper presents the first part of an ongoing project whose objective is to present a long term relationship between conservation tillage, adoption of GE crops and pesticide use for major crops in the United States. In addition, the project aims t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::4db92e49163b7c8bd737fba79c4fae7d
http://purl.umn.edu/60941
http://purl.umn.edu/60941