Nitrogen and phosphorus fertilizer application to Elephant grass (<i>Cenchrus purpureus</i> syn. <i>Pennisetum purpureum</i>) cultivar ‘Cameroon’ in an arenosol in Rio Grande do Norte, Brazil
نویسندگان
چکیده
Elephant grass (Cenchrus purpureus syn. Pennisetum purpureum) stands out for its high dry matter production per unit area and good nutritional value is cultivated throughout Brazil. This study aimed to evaluate the performance of elephant cultivar ‘Cameroon’ fertilized with nitrogen (N) phosphorus (P) at different rates. The experimental design was in randomized blocks 10 treatments 4 replicates. consisted 5 doses N (0, 200, 400, 600 800 kg N/ha) all 66 P/ha P 22, 44, 88 P/ha) N/ha. variables evaluated during 3 harvests were: shoot (DM) yield, concentrations shoots, uptakes forage. Results showed that, arenosol area, could produce yields (40‒41 t DM/ha) over 260 days. extracted large amounts (on average, N/ha days) were significantly affected by fertilization only last harvest, where it increased from 0.27 0.78 g P/kg DM. However, application 200 will more than 60% DM yield response achieved Similarly, there seems little merit applying 22 N. Longer-term studies are needed test these hypotheses along economic assessments determine financial soundness such decisions.
منابع مشابه
Universidade Federal Do Rio Grande Do Norte
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ژورنال
عنوان ژورنال: Tropical Grasslands - Forrajes Tropicales
سال: 2022
ISSN: ['2346-3775']
DOI: https://doi.org/10.17138/tgft(10)280-287