Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Karl J. Czymmek"'
Publikováno v:
Frontiers in Sustainability, Vol 2 (2021)
A field nutrient balance (supplied minus harvested) can be an effective, end-of-season management evaluation tool. However, development of guidance for balance-based management requires knowledge of variability in balance inputs. To contribute to dev
Externí odkaz:
https://doaj.org/article/1a2d50cd4a7945c7a64be163c3cf5fd1
Autor:
Jason B. Cho, Joseph Guinness, Tulsi Kharel, Ángel Maresma, Karl J. Czymmek, Jan van Aardt, Quirine M. Ketterings
Publikováno v:
Agronomy, Vol 11, Iss 10, p 2042 (2021)
On-farm experimentation (OFE) allows farmers to improve crop management over time. The randomized complete blocks design (RCBD) with field-length strips as individual plots is commonly used, but it requires advanced planning and has limited statistic
Externí odkaz:
https://doaj.org/article/93844a93113e41d68c43628df2f6dd05
Publikováno v:
Remote Sensing, Vol 13, Iss 19, p 3948 (2021)
Harvester-mounted yield monitor sensors are expensive and require calibration and data cleaning. Therefore, we evaluated six vegetation indices (VI) from unmanned aerial system (Quantix™ Mapper) imagery for corn (Zea mays L.) yield prediction. A fi
Externí odkaz:
https://doaj.org/article/3c0860db048d448080fa394247efd205
Publikováno v:
Crops & Soils. 49:34-37
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34fc310990dc2ab9be2859a228b464c2
https://doi.org/10.2134/cs2016-49-1-8
https://doi.org/10.2134/cs2016-49-1-8
Autor:
Amir Sadeghpour, Quirine M. Ketterings, Francoise Vermeylen, Gregory S. Godwin, Karl J. Czymmek
Publikováno v:
Soil Science Society of America Journal. 80:1706-1707
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60e3f6efad73b35a16cc7c6c4863c2e6
https://doi.org/10.2136/sssaj2016.03.0086er
https://doi.org/10.2136/sssaj2016.03.0086er