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Journal of Agricultural Science and Technology، جلد ۲۷، شماره ۵، صفحات ۱۰۶۱-۱۰۷۷
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عنوان انگلیسی Impact of Single and Cumulative Applications of Biogas Liquid Digestate on Soil and Plant
چکیده انگلیسی مقاله The surge in biogas energy production has resulted in an accumulation of Liquid Digestate (LD), a byproduct with possible agricultural utility. To discern its benefits and shortcomings, a field trial was conducted to evaluate the effects of different doses of LD on maize yield, soil salinity, leaf and grain Nitrogen (N) content. The study included both single-year and consecutive two-year applications of LD at doses of 10, 30, 50, and 70 t ha-1. Based on maize N requirements, any N deficit was supplemented with chemical fertilizers. For the one-year experiment, the highest grain yield was obtained from the chemical fertilization treatment and 70 t ha-1 dose of LD. In the two consecutive years, 70 t.ha-1 dose gave the highest grain yield. LD provided N to the soil as effectively as chemical fertilization and stabilized the soil pH within approximately 1 month. However, high doses of digestate resulted in increased soil salinity and decreased N Use Efficiency (NUE). Consecutive two-year application increased Electrical Conductivity (EC) and pH stabilization in the soil to a greater extent than single-year applications. However, there was no difference in the N content of the plant between single-year and two consecutive applications. In summary, LD provides significant agricultural benefits such as pH stabilization and increased inorganic N levels. However, our findings indicate that overuse can lead to soil salinity and N losses, underscoring the importance of balanced application to maximize its benefits while minimizing potential drawbacks.
کلیدواژه‌های انگلیسی مقاله Maize,Nitrogen fertilizer,Soil electrical conductivity,Soil pH
نویسندگان مقاله Volkan Atav |
Department of Plant Nutrition and Soil, Atatürk Soil Water and Agricultural Meteorology Research Institute Kırklareli, Turkey.

Orhan Yuksel |
Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Tekirdag Namık Kemal University, Tekirdağ, Turkey.

Ayten Namli |
Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Ankara University, Ankara, Turkey.

نشانی اینترنتی https://jast.modares.ac.ir/article_24124_3ae07d3673dd24f4b25bdabae0ac4b3a.pdf
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