کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4408088 1618829 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Efficacies of designer biochars in improving biomass and nutrient uptake of winter wheat grown in a hard setting subsoil layer
ترجمه فارسی عنوان
اثربخشی سازه های زیستی طراح در بهبود زیست توده و جذب مواد مغذی گندم زمستانه ای که در لایه های زیرزمینی تنظیم شده است
کلمات کلیدی
زیست شناسی طراح، بیوماس زیرزمینی، بیوماس زیرزمینی، تنظیم زیرزمینی سخت
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


• Biochar was used to provide alternative recalcitrant carbon source in the soils.
• Additions of different designer biochars may have variable effects on biomass and nutrient uptake of winter wheat.
• Designer biochars did improve both aboveground and belowground biomass and uptake of winter wheat.

In the Coastal Plains region of the United States, the hard setting subsoil layer of Norfolk soils results in low water holding capacity and nutrient retention, which often limits root development. In this region, the Norfolk soils are under intensive crop production that further depletes nutrients and reduces organic carbon (C). Incorporation of pyrolyzed organic residues or “biochars” can provide an alternative recalcitrant C source. However, biochar quality and effect can be inconsistent and different biochars react differently in soils. We hypothesized that addition of different designer biochars will have variable effects on biomass and nutrient uptake of winter wheat. The objective of this study was to investigate the effects of designer biochars on biomass productivity and nutrient uptake of winter wheat (Triticum aestivum L.) in a Norfolk’s hard setting subsoil layer. Biochars were added to Norfolk’s hard setting subsoil layer at the rate of 40 Mg ha−1. The different sources of biochars were: plant-based (pine chips, PC); animal-based (poultry litter, PL); 50:50 blend (50% PC:50% PL); 80:20 blend (80% PC:20% PL); and hardwood (HW). Aboveground and belowground biomass and nutrient uptake of winter wheat varied significantly (p⩽0.0001p⩽0.0001) with the different designer biochar applications. The greatest increase in the belowground biomass of winter wheat over the control was from 80:20 blend of PC:PL (81%) followed by HW (76%), PC (59%) and 50:50 blend of PC:PL (9%). However, application of PL resulted in significant reduction of belowground biomass by about 82% when compared to the control plants. The average uptake of P, K, Ca, Mg, Na, Al, Fe, Cu and Zn in both the aboveground and belowground biomass of winter wheat varied remarkably with biochar treatments. Overall, our results showed promising significance for the treatment of a Norfolk’s hard setting subsoil layer since designer biochars did improve both aboveground/belowground biomass and nutrient uptake of winter wheat.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 142, January 2016, Pages 176–183
نویسندگان
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