Yield development of winter wheat over 50 years of FYM, N, P and K fertilizer application on black earth soil in the Czech Republic

Kunzová, Eva; Hejcman, Michal

doi:10.1016/j.fcr.2008.12.008

Cited by 76 publications

(37 citation statements)

References 27 publications

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“…DM yields of unfertilized control treatment were more balanced at S2 site, situated on Luvisol. The effect of soil type on sustainable production of crops confirms the results of many studies (Kunzová and Hejcman 2009, Černý et al 2010, Hejcman et al 2012). The highest increase of nitrogen content in grain was achieved at S1 by N treatment (10% higher than control) and at S2 by N + ST (26% higher than control) and by uptake of nitrogen at both sites by N + ST. Use of fertilizers with nitrogen in mineral form at S2 site led to significantly higher content of nitrogen in grain and straw compared to unfertilized treatment, which is in agreement with many researchers (Pettersson and Eckersten 2007, Sedlář et al 2011, Hejcman et al 2013.…”

Section: Resultssupporting

confidence: 73%

Nitrogen efficiency of spring barley in long-term experiment

et al. 2014

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The aim of this study was to evaluate nitrogen (N) efficiency from different organic and mineral fertilizers applied to the spring barley. Dry matter yield, N content and N uptake of spring barley from 16 years of experiments at two sites in the Czech Republic with different soil and climatic conditions were analyzed. For assessing of nitrogen efficiency nitrogen utilization efficiency (NUtE, kg/kg), recovery efficiency of applied N (%), agronomic efficiency of applied N (kg/kg) and summary N balances (ΣΔN, kg/ha) were observed. Six fertilization treatments were utilized: no fertilization (control); sewage sludge; farmyard manure (FYM); N in mineral fertilizers (N); NPK in mineral fertilizers (NPK) and N in mineral fertilizers + straw (N + ST). Yields were about 68% higher at NPK (S1 site) and 55% at N + ST (S2 site) in comparison with control. The highest NUtE was recorded at both locations after application of FYM. Higher NUtE from mineral fertilizers was obtained at low productive S1 site. At both sites a trend of decreasing ΣΔN over time was observed. At both sites a trend of decreasing negative N balance was observed. At lower productive site the decline of N balance was minimized for mineral fertilizers treatments in last experimental years. At higher productive site the differences between treatments with mineral nitrogen and control were lower and the decline of N balance continued over all 16 years of experiment duration.

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Section: Resultssupporting

confidence: 73%

Nitrogen efficiency of spring barley in long-term experiment

et al. 2014

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“…Ivanovice Crop Rotation Experiment (ICRE) which is described in Kunzová and Hejcman (2009) was established in 1956. The experiment has 8-year crop rotation (w.w., silage maize, s.b., winter oilseed rape, triticale, potatoes, s.b.…”

Section: Methodsmentioning

confidence: 99%

Study on some soil quality changes obtained from long-term experiments

Stehlíková¹,

Madaras²,

Lipavský³

et al. 2016

Plant Soil Environ.

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Agricultural practice often causes soil structure degradation and as a result it leads to changes in soil fertility and quality. The aim of this study was to compare soil aggregate stability (SAS) and soil organic matter (OM) quantity and quality in different systems of soil management. Three adjoining longterm experiments established on Chernozem were chosen; they were all set up in different years with different crop rotations and comparable fertilization treatments: control (without fertilization); NPK; manure; NPK + manure; N + manure; OM and NPK + OM. SAS was statistically significantly lower in the trial with the highest proportion of cereals in the crop rotation. Differences among the fertilization treatments were noticeable, but not significant; the lowest SAS was observed at treatments with the mineral NPK fertilization. Significant correlation was found out between SAS and C/N ratio (R = -0.571; P < 0.05) and between SAS and soil pH (R = 0.30; P < 0.05). Further, the individual trials differed in soil pH. A significant positive influence of the treatment NPK + manure was observed in the content of hot water-extractable carbon (C hwl ) and total soil organic carbon and nitrogen. The significant correlation between the 3000-2800/cm peak area of fourier transform infrared (FTIR) spectra and labile organic compounds in soil (C hwl ) was confirmed.

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“…[15], [16]. [17]). Variable annual yields are also being regularly mentioned in the historic records (cf.…”

Section: B Food Production and Agricultural Practicesmentioning

confidence: 99%

Economic Sustainability in Relation to Demographic Decline of Celtic Agglomerations in Central Europe: Multiple-Scenario Approach

Štekerová

Danielisová

2016

Computational Social Sciences

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Abstract-Our research attempts to discuss the applicability of social simulation as a tool for exploration the late Iron Age society in both the fortified agglomerations known as the oppida and open settlements within their surroundings, especially from the point of view of the population change and related sustainability of economic production. This paper presents a model of the resilience of the food production system under the dynamically changing (increasing and/or decreasing) population. The models represent a multiple-scenario approach: the scenarios describe different aspects of the oppida occupation (population dynamics in terms of its increase or decrease, food production strategies, landscape changes or economic interactions between oppida and their hinterlands). Within a modelling process different methods are integrated: (1) cellular automata (for the representation of landscape and its changes), (2) system dynamics (population dynamics, economic strategies and ecological and societal rules), and (3) the agentbased component (livestock management).

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Yield development of winter wheat over 50 years of FYM, N, P and K fertilizer application on black earth soil in the Czech Republic

Cited by 76 publications

References 27 publications

Nitrogen efficiency of spring barley in long-term experiment

Nitrogen efficiency of spring barley in long-term experiment

Study on some soil quality changes obtained from long-term experiments

Economic Sustainability in Relation to Demographic Decline of Celtic Agglomerations in Central Europe: Multiple-Scenario Approach

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