Reducing Topdressing N Fertilization with Variable Rates Does Not Reduce Maize Yield
نویسندگان
چکیده
Proximal sensing represents a growing avenue for precision fertilization and crop growth monitoring. In the last decade, agriculture technology has become affordable in many countries; Global Positioning Systems automatic guidance instruments proximal sensors can be used to guide distribution of nutrients such as nitrogen (N) using real-time applications. A two-year field experiment (2017–2018) was carried out quantify maize yield response variable rate (VR) N distribution, which determined with vigour sensor, an alternative fixed (FR) cereal-livestock farm located Po valley (northern Italy). The amount distributed FR (140 kg ha?1) calculated according requirement regional regulation: ±30% applied VR treatment Vigour S-index on-the-go from CropSpec sensor. two treatments did not result significant difference both years. findings suggest that application is more economically profitable than rate, especially under hypothesis at scale. outcome suggests viable technique easily level by adopting detect actual prior stem elongation. Besides economic benefits, approach regarded sustainable practice meets current European Common Agricultural Policy.
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ژورنال
عنوان ژورنال: Sustainability
سال: 2021
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su13148059