Zobrazeno 1 - 10
of 107
pro vyhledávání: '"David J Spielman"'
Publikováno v:
PLoS ONE, Vol 14, Iss 10, p e0222617 (2019)
Despite substantial research on the economic effects of transgenic insect-resistant Bacillus thuringiensis (Bt) cotton, there is still limited work on this technology's impacts on human health. Due to the inbuilt insect resistance, Bt cotton requires
Externí odkaz:
https://doaj.org/article/a642a2bbadc6425cbf313cbedfbcfe85
What are farmers really planting? Measuring the presence and effectiveness of Bt cotton in Pakistan.
Autor:
David J Spielman, Fatima Zaidi, Patricia Zambrano, Asif Ali Khan, Shaukat Ali, H Masooma Naseer Cheema, Hina Nazli, Rao Sohail Ahmad Khan, Arshad Iqbal, Muhammad Amir Zia, Ghulam Muhammad Ali
Publikováno v:
PLoS ONE, Vol 12, Iss 5, p e0176592 (2017)
Genetically modified, insect-resistant Bacillus thuringiensis (Bt) cotton is cultivated extensively in Pakistan. Past studies, however, have raised concerns about the prevalence of Bt cotton varieties possessing weak or nonperforming insect-resistanc
Externí odkaz:
https://doaj.org/article/32476faaefc945dea1dd14eff98cf67e
To fully benefit from new agricultural technologies like improved seed varieties, significant investment in complementary inputs such as fertilizers and pesticides, and practices such as systematic planting, irrigation, and weeding are also required.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1998df63c28288b526b8955b3edbcbdf
https://lirias.kuleuven.be/handle/20.500.12942/719293
https://lirias.kuleuven.be/handle/20.500.12942/719293
Autor:
Fredrick Bagamba, Proscovia R. Ntakyo, Geoffrey Otim, David J. Spielman, Bjorn Van Campenhout
Publikováno v:
Development Policy Review. 41
ispartof: Development Policy Review vol:41 issue:3 status: Published online
Publikováno v:
World Development. 167:106240
Autor:
David J. Spielman, Guy Hareau, Ricardo Labarta, Phuong Dung Le, Marcel Gatto, Grazia Pacillo, Mywish K. Maredia
Publikováno v:
Journal of Crop Improvement. 35:763-789
Seed systems for vegetatively propagated crops (VPCs) are frequently governed by regulatory blueprints designed for major cereal crops. This approach tends to disregard the distinct biological char...
Autor:
Gashaw T. Abate, Kibrom A. Abay, Jordan Chamberlin, Yumna Kassim, David J. Spielman, Martin Paul Jr Tabe-Ojong
Publikováno v:
Food Policy. 116:102439
Publikováno v:
Economic Development and Cultural Change. 68:607-653
Weather-related production risks remain one of the most serious constraints to agricultural production in much of the developing world. Financial and technological innovations that mitigate these risks have the potential to greatly benefit farmers in