Loading...
Please wait, while we are loading the content...
Similar Documents
EFEITOS DE HERBICIDAS NO CONTROLE DE PLANTAS DANINHAS, CRESCIMENTO E PRODUÇÃO DE MILHO E Brachiaria brizantha EM CONSÓRCIO
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jakelaitis, Adriano Silva, Antônio Alberto Da Silva, A. F. Silva, Luciano Ferreira, Lino Roberto Vivian, Rafael |
| Copyright Year | 2006 |
| Abstract | This study had the objective of evaluating weed control, growth and yield of intercropped maize and Brachiaria brizantha , as function of herbicide doses of nicosulfuron. Six nicosulfuron doses (0 g ha-1, 2 g ha-1, 4 g ha-1, 8 g ha-1, 16 g ha-1, and 32 g ha-1) were evaluated in a tank mixture with atrazine (1,500 g ha-1). Additionally, two weeded controls were tested represented by both species in monoculture. The weed species Brachiaria plantaginea , Sorghum arundinaceum , and Brachiaria decumbens were controlled effectively by nicosulfuron with the highest used doses. The perennial species Cyperus rotundus and Artemisia verlotorum were not controlled by the herbicides. Initially, maize presented a higher growth rate than Brachiaria brizantha causing a reduction in the biomass yield rate and the leaf area index (LAI) of the intercropped forage. This effect was increased on higher rates of nicosulfuron. The maize biomass yield was smaller in the atrazine treatment as related to those treated with the nicosulfuron + atrazine mixture and the weeded control. During the critical period of competition, the aerial biomass yield and the LAI of maize were superior to the intercropped Brachiaria brizantha . These characteristics allowed a good maize grain yield independently of the adopted management. KEY-WORDS: Crop-livestock integration; no-tillage; atrazine; nicosulfuron. |
| Starting Page | 53 |
| Ending Page | 60 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.5216/pat.v36i1.2172 |
| Volume Number | 36 |
| Alternate Webpage(s) | https://h200137217135.ufg.br/pat/article/download/2172/2120 |
| Alternate Webpage(s) | https://doi.org/10.5216/pat.v36i1.2172 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
