Spatial variability of total soil nitrogen and sulphur content at two conventionally managed fields

Vaněk, V.; Balík, J.; Šilha, J.; Černý, J.

doi:10.17221/404-pse

Cited by 12 publications

(5 citation statements)

References 17 publications

(9 reference statements)

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“…Consequently, yield dependence on soil characteristics (pH, contents of P, K, Ca, Mg, C org and N t in soil) was registered in the experiment. Vaněk et al (2008) found a largely significant positive correlation between total N content of soil and crop yield in their experimental plot. Our results show that the influence of the above-mentioned (2006) it is not possible to isolate or measure all biotic and abiotic factors that affect the yield in field but knowledge of soil fertility variability and crop yield can contribute to a rationalization of agricultural investments.…”

Section: Resultsmentioning

confidence: 91%

Evaluation of crop yield under different nitrogen doses of mineral fertilization

Matějková¹,

Kumhálová²,

Lipavský³

2010

PLANT SOIL ENVIRON

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Yields of winter wheat, winter rape and oats were evaluated in the field; the field was divided into the site-specific zones and treated with variable doses of nitrogen fertilizer in years [2004][2005][2006]. Measurements of the yields were carried out with a yield monitor placed in a combine harvester. The measured data were processed into the yield maps by means of ArcGIS 9.2 software. Variable application of fertilizer should balance yield potential of the field. Generally, total yield variability on the field after the application of various doses of experimental fertilizer was similar in the years 2004 (11.3%), 2005 (14.7%) and 2006 (11.7%) in comparison with the year 2003 (25.02%). Variable application of nitrogen in the site-specific zones, created on the basis of the yield levels, decreased the yield variability in comparison with the uniform dose. Different doses of nitrogen fertilizer also enabled to increase utilization of production potential of the experimental field.

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Section: Resultsmentioning

confidence: 91%

Evaluation of crop yield under different nitrogen doses of mineral fertilization

Matějková¹,

Kumhálová²,

Lipavský³

2010

PLANT SOIL ENVIRON

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“…The fourth pillar of the four nutrient stewardship concept, i.e., the right place, requires more attention because it is also written down in the agronomic concept, known as site-specific nutrient management (SSNM). In general, this concept addresses differences in yields due to variability in nutrient supply to crops, both between fields or within a given field [19,20]. The main reason for the in-field differences in nutrient supply to the currently grown crop is variability in basic soil properties, consequently resulting in a spatial differentiation in water and nutrient supply to plants during the growing season [21,22].…”

Section: Introductionmentioning

confidence: 99%

Spatial Variability of Yield and Nitrogen Indicators—A Crop Rotation Approach

et al. 2020

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The division of an arable field into zones of different productivity requires a reliable, discriminatory tool. This hypothesis was validated by analyzing the spatial variability of yield and N indicators in the crop rotation of winter oilseed rape (WOSR)/winter triticale (WTR) during 2016/2017 and 2017/2018 in a field of 30 ha (Przebędowo, Poland). The direct, measurable variables were: yield, N accumulated in—seeds/grain and crop residues, mineral N in spring, and harvest. The basic N indicators were total N uptake (TN), N-partial factor productivity, and N balance (Nb). The attainable yields of WOSR and WTR were 4.93 and 6.51 t ha−1, and a yield gap of −2.04 and −2.10 t ha−1. The management of 50 kg of the non-used N by crops, i.e. nitrogen gap (NG) could cover 36% and 65% of the yield gap (YG), respectively. The Nb, based on N input (Nin = Nmin + Nf) and TN, was the key field indicator, defining both yield and NG. Geostatic parameters, i.e., the nugget to sill ratio, spatial dependence range, and mean correlation distance, were very stable (≤0.2–0.17; 94–100 m; 28 m for WOSR and WTR). The spatial stability of Nb, irrespective of the crop and growing conditions, corroborates its suitability for discriminating high and low-productivity field zones.

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“…45 (Figure 11). In this study area, the lower contents of sulfur may be the consequence of predominantly washed-out sulfur in the form of sulfates, especially under leaching circumstances [69,78].…”

Section: Spatial Interpolation and Mapping Of Soil Propertiesmentioning

confidence: 89%

Spatial Variability and Geostatistical Analysis of Soil Properties in the Diversified Cropping Regions of Bangladesh Using Geographic Information System Techniques

Khan

Islam

Salam

et al. 2021

Applied and Environmental Soil Science

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Mapping of soil properties is an important operation as it plays an important role in the knowledge about soil properties and how it can be used sustainably. The study was carried out in a local government area in Bangladesh in order to map out some soil properties and assess their variability within the area. From the study area, a total of 92 soil samples (0–20 cm) were collected from different cropping patterns at an interval of 2.2 × 2.2 km2 on a regular grid design. A portable global positioning system (GPS) was used to collect coordinates of each sampling site. Then, soil properties, that is, pH, electrical conductivity (EC), soil organic carbon (SOC), total nitrogen (Total N), and soil available nutrients (P, K, and S) were measured in the laboratory. After the normalization of data, classical statistics were used to describe the soil properties, and geostatistical analysis was used to illustrate the spatial variability of the soil properties by using kriging interpolation techniques in a GIS environment. Results show that the spatial distribution and spatial dependency level of soil properties can be different even within the small or large scale. According to cross-validation results, for most soil properties, the kriging interpolation method provided the least interpolation error. The generated maps of soil properties that indicate soil nutrient status over the study region could be helpful for farmers and decision-makers to enhance site-specific nutrient management. Also, these prototype maps would be helpful for future nutrient and fertilizer applications management, including a site-specific condition to not only reduce the cost of input management but also prevent any environmental hazard. It also demonstrates that the effectiveness of geostatistics and GIS techniques provided a powerful tool for this study in terms of regionalized nutrient management.

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Spatial variability of total soil nitrogen and sulphur content at two conventionally managed fields

Cited by 12 publications

References 17 publications

Evaluation of crop yield under different nitrogen doses of mineral fertilization

Evaluation of crop yield under different nitrogen doses of mineral fertilization

Spatial Variability of Yield and Nitrogen Indicators—A Crop Rotation Approach

Spatial Variability and Geostatistical Analysis of Soil Properties in the Diversified Cropping Regions of Bangladesh Using Geographic Information System Techniques

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