View from the sky: Mapping corn nitrogen status at the watershed level
نویسنده
چکیده
Research about N management in corn has rapidly advanced during the last 10 years. Farmers and agronomists can use different recommendation systems such as the regional N recommendations that are based on yield response and profit optimization (Sawyer et al., 2006) or in-season N diagnostics tools such as chlorophyll meters or crop canopy sensors (Scharf and Lory, 2002; Holland and Sheperds, 2010). In addition, farmers can subscribe to many commercial N modeling tools that provide sidedress N rate prescriptions based on observed weather, potential corn yields and digital soil map information.
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تاریخ انتشار 2017