06158nam 2201285z- 450 991056645900332120220506(CKB)5680000000037791(oapen)https://directory.doabooks.org/handle/20.500.12854/81227(oapen)doab81227(EXLCZ)99568000000003779120202205d2022 |y 0engurmn|---annantxtrdacontentcrdamediacrrdacarrierSite-Specific Nutrient ManagementBaselMDPI - Multidisciplinary Digital Publishing Institute20221 online resource (224 p.)3-0365-1344-2 3-0365-1343-4 The 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).Biology, life sciencesbicsscResearch and information: generalbicsscTechnology, Engineering, Agriculture, Industrial processesbicssca fieldBBeta vulgaris L.biological index fertilitycalciumcardinal stages of WOSR growthchlorophyll content indexclimatic potential yieldcontents of available phosphoruscrop productioncrop yieldcrude protein contenteconomicsfarmyard manurefieldgrain yieldhomogenous productivity unitsindices of N productivityindigenous Nmin at springmagnesiummaximum photochemical efficiency of photosystem IImicroelements fertilization (Timineral fertilizersmineral NMoN balanceN efficiencyN gapN inputN total uptakeN uptakeNDVInet returnnitrate nitrogen contentnitrogen indicators: in-seasonnitrogen use efficiencynitrogenase activitynormalized difference vegetation index (NDVI)number of spikeson-the-go sensorsorganic manurePCApost-harvest Nminpotassiumregional optimal nitrogen managementremote sensing-techniquessatellite remote sensingseed densitySisite-specific nitrogen managementsite-specific nutrient managementsoilsoil brightnesssoil chemistrysoil constraintssoil enzymatic activitysoil fertilitysoil properties, site-specific requirementsspatialspatial variabilityspectral imagerysubsoilsugar concentrationsustainabilitytemporal variabilityTriticum aestivum L.vegetation indicesvertical variability of N demand and supplyweather conditionswinter oilseed rape → winter triticale cropping sequencewinter triticalewinter wheatyieldyield gapZn)Biology, life sciencesResearch and information: generalTechnology, Engineering, Agriculture, Industrial processesGrzebisz Witoldedt1328520Grzebisz WitoldothBOOK9910566459003321Site-Specific Nutrient Management3038641UNINA