دورية أكاديمية
Pig slurry in carpet grass pasture: Yield and plant-available nitrogen
| العنوان: | Pig slurry in carpet grass pasture: Yield and plant-available nitrogen |
|---|---|
| المؤلفون: | Brustolin-Golin, Karen D., Scheffer-Basso, Simone M., Escosteguy, Pedro A. V., Miranda, Mario, Travi, Magdalena R. L., Zabot, Valdirene |
| المصدر: | Revista Brasileira de Engenharia Agrícola e Ambiental. September 2016 20(9) |
| بيانات النشر: | Departamento de Engenharia Agrícola - UFCG, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Axonopus affinis, agronomic nitrogen efficiency, nitrogen efficiency index, manure, perennial pasture |
| الوصف: | This study evaluated the response of carpet grass to pig slurry fertilization in order to estimate the agronomic efficiency and the plant-available nitrogen (N) of such manure. A field test was conducted during two years, following a randomized block design with six replicates of the treatments: 0, 100, 200, 300, 400 and 500 kg N ha-1 year-1, which resulted in 0, 60, 120, 180, 240 and 300 m3 ha-1 (2008/09), and 0, 42, 84, 126, 168 and 210 m3 ha-1 (2009/10), according to the N content of the pig slurry used in each year. These treatments were compared with ammonium nitrate (200 kg N ha-1 year-1), in order to estimate the plant-available nitrogen of the manure for the pasture. Pig slurry doses increased linearly the dry matter yield. In 2008/2009, it was increased from 2,600 (0 kg N ha-1) to 7,718 kg ha-1 (500 kg N ha-1), while in 2009-2010 it ranged from 4,310 (0 kg N ha-1) to 12,321 kg ha-1 (500 kg N ha-1). The average agronomic efficiency of the manurewas 15 kg DM kg-1 N and it was lower than that found with ammonium nitrate (27 kg DM kg-1 N).The estimated plant-available N of the pig slurry was similar between the growing years. The N fraction of this manure available to the pasture was 0.64 (2008-09) and 0.60 (2009-10). |
| نوع الوثيقة: | article |
| وصف الملف: | text/html |
| اللغة: | English |
| تدمد: | 1415-4366 |
| DOI: | 10.1590/1807-1929/agriambi.v20n9p795-799 |
| URL الوصول: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000900795 |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الأكسشن: | edssci.S1415.43662016000900795 |
| قاعدة البيانات: | SciELO |
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