14 documents found, page 1 of 2
Fontes de nitrogênio associadas a Azospirillum brasilense: impacto sobre o cres...
Gaviraghi,Lucas; Basso,Claudir José; Sangiovo,Mateus Junior Rodrigues; Silva,Diecson Ruy Orsolin da; Feltes,Janine Diéle; Souza,Fernanda Marcolan DeResumo A cultura do milho é extremamente dependente do nitrogênio para altas produtividades, sendo necessários estudos que beneficiem a eficiência deste nutriente. Por isso, o objetivo deste trabalho foi avaliar a eficiência de inoculação da bactéria Azospirillum brasilense associada a adubação mineral e a cama de aves como estratégias de manejo da adubação nitrogenada para a cultura do milho. Os tratamentos fo...
Viability of Italian ryegrass (Lolium multiflorum) seeds under application of s...
Novello,Bruna Dal’Pizol; Silva,Diecson Ruy Orsolin da; Cuchi,Marina Luiza; Silva,Álvaro Andre Alba daABSTRACT Italian ryegrass (Lolium multiflorum) is one of the main weeds in the wheat crop, and the application of synthetic auxin herbicides has the potential to reduce seed viability, therefore, restricting the input into the seed bank. The objective was to evaluate the effects of synthetic auxin herbicides applied at different growth stages on germination, emergence and initial growth of Italian ryegrass. The...
Application time affects synthetic auxins herbicides in tank-mixture with paraq...
Silva,Diecson Ruy Orsolin da; Aguiar,Adalin Cezar Moraes de; Basso,Claudir José; Muraro,Dionei SchmidtABSTRACT Conyza sp. was the first glyphosate-resistant weed in Brazil’s soybean crop. Synthetic auxin herbicides followed by paraquat has improved the hairy fleabane control, and time of day of herbicide application can affect the control efficacy. There are no studies reporting the effects of the application time of synthetic auxins in tank-mixture with paraquat, or in sequential application with paraquat at t...
Agronomic traits in common bean are influenced by infestation and coexistence w...
Aguiar,Adalin Cezar Moraes de; Silva,Diecson Ruy Orsolin da; Basso,Claudir José; Novello,Bruna Dal’Pizol; Silva,Álvaro André Alba daABSTRACT Maize seeds lost during harvest may emerge and establish themselves during the cultivation of common bean, becoming a problematic weed in succession crops. This study aimed to evaluate the effect of the infestation level and interference period of volunteer maize on agronomic traits of common bean. The experiment was carried out in a randomized block design, with four replications, in a 2 x 8 factorial...
Simulated rainfall following the preplant application of 2,4-D and dicamba in s...
Silva,Diecson Ruy Orsolin da; Cuchi,Marina Luiza; Silva,Álvaro André Alba da; Novello,Bruna Dal'Pizol; Basso,Claudir JoséABSTRACT Soil residues following the application of 2,4-D and dicamba for weed control may delay the establishment and initial development of soybean, but rainfall can reduce the interval required between application and sowing. Rainfall volumes (0; 10; 30; 60; and 90 mm) were simulated following the application of 2,4-D (300 and 600 g a.e. ha-1) and dicamba (120 and 240 g a.e. ha-1), and the effects on soybean...
Interference of volunteer corn in growth and chlorophyll fluorescence of bean
Aguiar,Adalin Cezar Moraes de; Silva,Diecson Ruy Orsolin da; Basso,Claudir José; Soriani,Hilda Hildebrand; Novello,Bruna Dal’PizolABSTRACT Corn kernels or seeds that remain after harvest can germinate and become a troublesome volunteer plant where bean crops are grown. The objective of this study was to evaluate the effect of time of emergence of volunteer corn on growth parameters, photosynthetic pigments and chlorophyll fluorescence in bean plants, competition for soil and light and light resources. The study was conducted in completely...
Drift of 2,4-D and dicamba applied to soybean at vegetative and reproductive gr...
Silva,Diecson Ruy Orsolin da; Silva,Edson Dalla Nora da; Aguiar,Adalin Cezar Moraes de; Novello,Bruna Dal’Pizol; Silva,Álvaro André Alba daABSTRACT: The introduction of dicamba and 2,4-D-resistant soybean will increase the use of auxin herbicides for management of herbicide-resistant weeds, increasing risk of drift in non-target crops. The field experiment was conducted in 2016/17 to evaluate injury, growth, yield, germination and seeds vigor of soybean effects to simulated drift of 2,4-D and dicamba applied to soybean at the V3 and R2 growth stag...
Development stages horseweed in soybeans competition
Silva,Diecson Ruy Orsolin da; Agostinetto,Dirceu; Vargas,LeandroABSTRACT: The objective of this study was to evaluate the relative competitive ability of soybean with different development stages of hairy fleabane. Two experiments were conducted in greenhouse, in a completely randomized design. In the experiment it was tested soybean and hairy fleabane competition at different stage of development (rosette and 15 cm height) at the proportions 100:0, 75:25, 50:50, 25:75 and ...
Soybean yield loss and economic thresholds due to glyphosate resistant hairy fl...
Agostinetto,Dirceu; Silva,Diecson Ruy Orsolin da; Vargas,LeandroABSTRACT: The interference of glyphosate resistant hairy fleabane (Conyza bonariensis) has caused yield losses in soybean crop. Knowledge of the economic threshold is an important aspect for the economic management of resistant weeds. Because of it, the interference of the glyphosate resistant hairy fleabane density on the soybean yield loss was evaluated, as well as to estimate the economic threshold. Two expe...
Pig slurry as a nutrient source in wheat/corn succession
Basso,Claudir José; Pinto,Marlo Adriano Bison; Santi,Antônio Luis; Silva,Rodrigo Ferreira da; Silva,Diecson Ruy Orsolin daABSTRACT Wheat and corn are important grains in the agricultural scenario of Brazil, and demand adequate supply of nutrients, particularly nitrogen, in crop succession. The use of pig slurry (PS) as a full and/or partial alternative to mineral fertilization in crop areas has been identified as an important alternative for the disposal of this waste. Therefore, the objective of this study was to evaluate the uti...