Title |
Palisadegrass effects on N fertilizer dynamic in intercropping systems with corn
|
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Published in |
Anais da Academia Brasileira de Ciências, September 2017
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DOI | 10.1590/0001-3765201720160811 |
Pubmed ID | |
Authors |
Rodrigo E M DE Almeida, Silas M DE Oliveira, Bruno C Lago, Clovis P, Paulo C O Trivelin, José L Favarin |
Abstract |
Corn grain yield, nitrogen (N) fertilizer efficiency and distribution to corn alone and three forms of corn and palisadegrass (Urochloa spp.) intercropping implantation was investigated. A field experiment with 15N labeling fertilizer was performed in randomized block design. No form of palisadegrass intercropping implantation affected corn grain yield, total N accumulation and N use efficiency (NUE), which were 8.7 t ha-1, 205 kg ha-1 and 37% respectively. The palisadegrass produced on average 1.9 t of dry mass, absorbing a maximum of 6 kg ha-1 or 5.5% of N fertilizer during corn growing. Furthermore, the palisadegrass did not affect N fertilizer distribution in soil-plant system, in which 28.2% was recovered in the soil and 40.4% in the plants (corn + palisadegrass). The results show that for the three intercropping implantation methods the palisadegrass did not compete with corn for N fertilizer. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 19 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 3 | 16% |
Professor | 3 | 16% |
Researcher | 2 | 11% |
Student > Ph. D. Student | 2 | 11% |
Other | 1 | 5% |
Other | 2 | 11% |
Unknown | 6 | 32% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 7 | 37% |
Computer Science | 1 | 5% |
Psychology | 1 | 5% |
Social Sciences | 1 | 5% |
Unknown | 9 | 47% |