التفاصيل البيبلوغرافية
| العنوان: |
Rates and methods of phosphorus application in cabbage crop |
| المؤلفون: |
Duarte, Luiz Otávio, Aquino, Leonardo Angelo de, Caixeta, Ilídio Augusto Borges, Gonçalves, Felipe Augusto Reis, Reis, Marcelo Rodrigues dos |
| المصدر: |
Pesquisa Agropecuária Tropical. January 2019 49 |
| بيانات النشر: |
Escola de Agronomia/UFG, 2019. |
| سنة النشر: |
2019 |
| مصطلحات موضوعية: |
Brassica oleracea var. capitata, localized phosphorous application, phosphate fertilization |
| الوصف: |
The efficiency of phosphate fertilization may be reduced by incorporating the fertilizer to the soil using a rotary tiller, which is a method commonly adopted to grow vegetables. This study aimed to evaluate the yield of cabbage crop and the efficiency of phosphate fertilization based on rates and application methods of P to the soil. Four experiments were carried out [two using broadcasting application (0 kg ha-1, 200 kg ha-1, 400 kg ha-1, 800 kg ha-1 and 1,600 kg ha-1 of P2O5) and two using localized application (0 kg ha-1, 80 kg ha-1, 160 kg ha-1, 320 kg ha-1 and 640 kg ha-1 of P2O5, combined with the presence or absence of phosphating - application of 200 kg ha-1 of P2O5 by broadcasting)] in two growing sites [one with low (A) and another with high (B) content of P, both showing a very clayey texture]. The rates of 252 kg ha-1 and 284 kg ha-1 of P2O5 were estimated to obtain the maximum economic productivity in the broadcasting application at the sites A and B, respectively. The best rates were 183 kg ha-1 and 146 kg ha-1 of P2O5 with the localized application of P without phosphating at the sites A and B, respectively. To obain 95 % of maximum yield, the recovery efficiency was 48.9 % and 30.0 % at the sites A and B, respectively. For the localized application of P in the absence of phosphating, these values were 44.6 % and 60.4 % at the sites A and B, respectively. With phosphating, the recovery efficiency decreased significantly. The localized application of P is more efficient than the broadcasting application to supply nutrients and increase the cabbage yield. |
| نوع الوثيقة: |
article |
| وصف الملف: |
text/html |
| اللغة: |
English |
| تدمد: |
1983-4063 |
| DOI: |
10.1590/1983-40632019v4954191 |
| URL الوصول: |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-40632019000100220 |
| Rights: |
info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edssci.S1983.40632019000100220 |
| قاعدة البيانات: |
SciELO |