Journal
JOURNAL OF PLANT NUTRITION
Volume 41, Issue 5, Pages 627-635Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01904167.2017.1414243
Keywords
protein; splitting of N-fertilization; yield
Categories
Funding
- Spanish Government (MCyT) [AGL2001-2214-CO6-06]
- Basque Government
Ask authors/readers for more resources
In Northern Spain, winter wheat is usually fertilized with 180-220kg N/ha split in two applications. To reduce this rate, a strategy was tested which comprised three nitrogen (N)-applications, the latter being tuned to the nutritional needs of the crop using a chlorophyll meter. N-fertilization experiments were performed on winter wheat (Soissons variety). Treatments consisted of three N-broadcasts of 40, 60, and either 0, 40, 60, or 80kg N/ha respectively applied at Zadoks scale growth stages 21, 30, and 37. An over-fertilized treatment of 220kg N/ha was included for normalization of chlorophyll-meter values. Chlorophyll-meter readings were performed at growth stage 37, before fertilization. When normalized chlorophyll-meter values were below 92%, yield and grain protein contents attained with 40+60+0kg N/ha could be respectively enhanced with third applications of 60 or 80kg N/ha and 40kg N/ha.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available