کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4508674 1624447 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of biofertilizers obtained from sewage sludges on maize yield
ترجمه فارسی عنوان
استفاده از کود زیستی به دست آمده از لجن فاضلاب بر عملکرد ذرت
کلمات کلیدی
کود زیستی؛ لجن فاضلاب؛ لقاح برگی؛ محصول ذرت
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی


• The application of biofertilizer to the soil had no effect on the soil, maize nutrition or yield.
• Soil application of biofertilizer caused no residual effect of organic matter.
• The foliar fertilization with the biofertilizer produced a significant increase in maize yield and grain quality.

Maize production plays an essential role in global food security. In order to maintain both high quality and maize production, there is a great demand for fertilizers. The main objective of this work was to study, over two experimental seasons, the effect of a biofertilizer obtained from sewage sludge (SS) on the yield and on the quality of maize crops (Zea mays L.). The biofertilizer was applied in two ways: (i) to soil, at rates of 0, 10 and 20 Mg ha−1 before sowing, and (ii) via foliar fertilization, applying 0, 3.6 and 7.2 l ha−1 three times during each growing season accounting for a total rate of 0, 10.8 l ha−1 and 21.6 l ha−1. This study is novel because there are no previous studies of the effect of this biofertilizer on any agricultural crops. The results obtained show that, when the SS was applied directly to the soil, the macro- and micronutrients analyzed in both soil and leaves showed no significant differences between either of the fertilizer treatments. Foliar application of SS, however, increased the leaf concentrations of macro- and micronutrients. When the SS rate was 7.2 l ha−1, grain protein concentration increased significantly by about 30% and the yield increased significantly by about 17% compared with the control treatment (SS not applied). These results suggested that, in order to improve agricultural maize yields, quality and nutritional, this SS should be applied as a foliar fertilizer instead of applying it to soil.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Agronomy - Volume 78, August 2016, Pages 13–19
نویسندگان
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