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dc.contributor.editorGrzebisz, Witold
dc.description.abstractThe concept of nitrogen gap (NG), i.e., its recognition and amelioration, forms the core of this book entitled Site-Specific Nutrient Management (SSNM). Determination of the presence of an NG between fields on a farm and/or within a particular field, together with its size, requires a set of highly reliable diagnostic tools. The necessary set of diagnostic tools, based classically on pedological and agrochemical methods, should be currently supported by remote-sensing methods. A combination of these two groups of methods is the only way to recognize the factors responsible for yield gap (YG) appearance and to offer a choice of measures for its effective amelioration. The NG concept is discussed in the two first papers (Grzebisz and Łukowiak, Agronomy 2021, 11, 419; Łukowiak et al., Agronomy 2020, 10, 1959). Crop productivity depends on a synchronization of plant demand for nitrogen and its supply from soil resources during the growing season. The action of nitrate nitrogen (N–NO3), resulting in direct plant crop response, can be treated by farmers as a crucial growth factor. The expected outcome also depends on the status of soil fertility factors, including pools of available nutrients and the activity of microorganisms. Three papers are devoted to these basic aspects of soil fertility management (Sulewska et al., Agronomy 2020, 10, 1958; Grzebisz et al., Agronomy 2020, 10, 1701; Hlisnikovsky et al., Agronomy 2021, 11, 1333). The resistance of a currently cultivated crop to seasonal weather variability depends to a great extent on the soil fertility level. This aspect is thoroughly discussed for three distinct soil types and climates with respect to their impact on yield (Hlisnikovsky et al., Agronomy 2020, 10, 1160—Czech Republic; Wang et al., Agronomy 2020, 10, 1237—China; Łukowiak and Grzebisz et al., Agronomy 2020, 10, 1364—Poland). In the fourth section of this book, the division a particular field into homogenous production zones is discussed as a basis for effective nitrogen management within the field. This topic is presented for different regions and crops (China, Poland, and the USA) (Cammarano et al., Agronomy 2020, 10, 1767; Panek et al., Agronomy 2020, 10, 1842; Larson et al., Agronomy 2020, 10, 1858).
dc.subject.classificationthema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: generalen_US
dc.subject.classificationthema EDItEUR::P Mathematics and Science::PS Biology, life sciencesen_US
dc.subject.classificationthema EDItEUR::T Technology, Engineering, Agriculture, Industrial processesen_US
dc.subject.otherTriticum aestivum L.
dc.subject.otherfarmyard manure
dc.subject.othermineral fertilizers
dc.subject.othercrude protein content
dc.subject.othersoil properties, site-specific requirements
dc.subject.othersite-specific nitrogen management
dc.subject.otherregional optimal nitrogen management
dc.subject.othernet return
dc.subject.othernitrogen use efficiency
dc.subject.otherspatial variability
dc.subject.othertemporal variability
dc.subject.otherseed density
dc.subject.otherN uptake
dc.subject.otherindices of N productivity
dc.subject.othermineral N
dc.subject.otherindigenous Nmin at spring
dc.subject.otherpost-harvest Nmin
dc.subject.otherN balance
dc.subject.otherN efficiency
dc.subject.othermaximum photochemical efficiency of photosystem II
dc.subject.otherchlorophyll content index
dc.subject.othersoil enzymatic activity
dc.subject.otherbiological index fertility
dc.subject.othernitrogenase activity
dc.subject.othermicroelements fertilization (Ti
dc.subject.othernitrate nitrogen content
dc.subject.othercontents of available phosphorus
dc.subject.othercardinal stages of WOSR growth
dc.subject.othersite-specific nutrient management
dc.subject.othersoil brightness
dc.subject.othersatellite remote sensing
dc.subject.othercrop yield
dc.subject.othersoil fertility
dc.subject.otherwinter wheat
dc.subject.otherwinter triticale
dc.subject.othervegetation indices
dc.subject.othergrain yield
dc.subject.othernumber of spikes
dc.subject.othernormalized difference vegetation index (NDVI)
dc.subject.otheron-the-go sensors
dc.subject.otherwinter oilseed rape → winter triticale cropping sequence
dc.subject.otherN input
dc.subject.otherN total uptake
dc.subject.otherN gap
dc.subject.otherBeta vulgaris L.
dc.subject.otherorganic manure
dc.subject.otherweather conditions
dc.subject.othersoil chemistry
dc.subject.othersugar concentration
dc.subject.otherclimatic potential yield
dc.subject.otheryield gap
dc.subject.othersoil constraints
dc.subject.otherremote sensing-techniques
dc.subject.othera field
dc.subject.othercrop production
dc.subject.otherhomogenous productivity units
dc.subject.othernitrogen indicators: in-season
dc.subject.othervertical variability of N demand and supply
dc.subject.otherspectral imagery
dc.titleSite-Specific Nutrient Management

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