EVALUATION OF MACRONUTRIENTS SPATIAL VARIABILITY IN UNIVERSITY OF ZANJAN

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SHAABANI H.; DELAVAR M.A.

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Journal: Applied Agricultural Research Year:2016 | Volume:29 | Issue:110 Page(s): 75-82

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Title

EVALUATION OF MACRONUTRIENTS SPATIAL VARIABILITY IN UNIVERSITY OF ZANJAN

Author(s)

SHAABANI H. | DELAVAR M.A. | Issue Writer Certificate

Keywords

SPATIAL VARIATIONQ3

GEOSTATISTICSQ2

ORDINARY KRIGINGQ2

FERTILITY MAPSQ1

NUTRIENTSQ2

Abstract

An agricultural system will be sustainable while the lost NUTRIENTS are substituted in some ways. Chemical fertilizers is one of the main resources to NUTRIENTS supply for plant that optimum use of them, have an important role in field of ecologically sustainability and the agricultural products safety. One of the suitable tools that make it possible to manage the soil fertility is the use of soil NUTRIENTS elements maps. On the other hand zoning maps of NUTRIENTS can be guideline for proper application of chemical fertilizer. In this research, it was assessed the SPATIAL VARIATIONs and zoning of macronutrients included nitrogen, phosphorus and potassium. Based on these, 96 soil samples collected from surface (0-25 cm) and sub surface (25-50 cm depths) in campus of University of Zanjan, Iran. The sampling method was based on regular network and the distance between two adjacent samples was selected 250 m. Statistical analysis presented that nitrogen has the lowest variation coefficient among the studied elements. Results of geostatistical analysis revealed that exponential model describes SPATIAL VARIATIONs of the three elements properly. In the studied depths, minimum effective range of potassium were estimated between 328.1 and 553.7 m.Zoning maps of the macronutrients showed that distribution of them is not random and is following a spatial pattern.

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APA: Copy

SHAABANI, H., & DELAVAR, M.A.. (2016). EVALUATION OF MACRONUTRIENTS SPATIAL VARIABILITY IN UNIVERSITY OF ZANJAN. APPLIED FIELD CROPS RESEARCH (PAJOUHESH & SAZANDEGI), 29(110), 75-82. SID. https://sid.ir/paper/214902/en

Vancouver: Copy

SHAABANI H., DELAVAR M.A.. EVALUATION OF MACRONUTRIENTS SPATIAL VARIABILITY IN UNIVERSITY OF ZANJAN. APPLIED FIELD CROPS RESEARCH (PAJOUHESH & SAZANDEGI)[Internet]. 2016;29(110):75-82. Available from: https://sid.ir/paper/214902/en

IEEE: Copy

H. SHAABANI, and M.A. DELAVAR, “EVALUATION OF MACRONUTRIENTS SPATIAL VARIABILITY IN UNIVERSITY OF ZANJAN,” APPLIED FIELD CROPS RESEARCH (PAJOUHESH & SAZANDEGI), vol. 29, no. 110, pp. 75–82, 2016, [Online]. Available: https://sid.ir/paper/214902/en

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