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spray quality

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Catalogue: GRDC Media
Resource can help growers plan for summer spraying.. "Often the most important factor in summer weed control is getting the timing right and using a robust rate of product," Dr Hughes said... Dr Hughes said that with legal pressure on night spraying - due to the presence of surface temperature inversions - South Australian trials tested the control of 'tough weeds' in less than favourable conditions during summer daytime spraying...
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Catalogue: Ground Cover
In upcoming editions of Ground Cover we will be running a column focusing on application, as well as releasing fact sheets about spraying and drift reduction... In the edition we are discussing summer fallow set-ups and techniques that can improve efficacy while reducing drift potential... The article below on summer fallow spraying discusses how larger droplets can provide excellent efficacy, and that nozzle type and orientation can play an important role in making larger droplets even more effective, particularly on larger targets...
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Catalogue: GRDC Factsheets
" RepRinted july 2014 summerfallow FACTSHEET spraying northern, southern and western regions ImPLICATIOnS fOr nOzzLe SeLeCTIOn And QuALITy frOm reCenT TrIAL reSuLTS.. plan to control summer weeds early and have the sprayer ready to go If spraying to conserve soil moisture and retain nutrients over summer, early weed fallow control can increase the yield potential of future crops... Trials 2 & 3: Heliotrope control at mintaro, sa Site and treatment details: Site location: mintaro, mid-north of South Australia Spraying date: 13 february 2012 Site condition: a bean stubble, with all residue lying on the ground Target species: heliotrope, 10 to 20cm high, flowering to seed set, variable density Spraying conditions: temperature 29.3 C to 32.8 C, humidity 13 to 16 per cent, delta T of 14.5 to 15.5, wind speed average 7.7km/h, gusts to 16.5km/h, very warm afternoon Herbicide treatments: 1...
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Catalogue: GRDC Factsheets
" RepRinted july 2014 summerfallow FACTSHEET spraying northern, southern and western regions ImPLICATIOnS fOr nOzzLe SeLeCTIOn And QuALITy frOm reCenT TrIAL reSuLTS.. plan to control summer weeds early and have the sprayer ready to go If spraying to conserve soil moisture and retain nutrients over summer, early weed fallow control can increase the yield potential of future crops... Trials 2 & 3: Heliotrope control at mintaro, sa Site and treatment details: Site location: mintaro, mid-north of South Australia Spraying date: 13 february 2012 Site condition: a bean stubble, with all residue lying on the ground Target species: heliotrope, 10 to 20cm high, flowering to seed set, variable density Spraying conditions: temperature 29.3 C to 32.8 C, humidity 13 to 16 per cent, delta T of 14.5 to 15.5, wind speed average 7.7km/h, gusts to 16.5km/h, very warm afternoon Herbicide treatments: 1...
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Catalogue: GRDC Factsheets
" RepRinted july 2014 summerfallow FACTSHEET spraying northern, southern and western regions ImPLICATIOnS fOr nOzzLe SeLeCTIOn And QuALITy frOm reCenT TrIAL reSuLTS.. plan to control summer weeds early and have the sprayer ready to go If spraying to conserve soil moisture and retain nutrients over summer, early weed fallow control can increase the yield potential of future crops... Trials 2 & 3: Heliotrope control at mintaro, sa Site and treatment details: Site location: mintaro, mid-north of South Australia Spraying date: 13 february 2012 Site condition: a bean stubble, with all residue lying on the ground Target species: heliotrope, 10 to 20cm high, flowering to seed set, variable density Spraying conditions: temperature 29.3 C to 32.8 C, humidity 13 to 16 per cent, delta T of 14.5 to 15.5, wind speed average 7.7km/h, gusts to 16.5km/h, very warm afternoon Herbicide treatments: 1...
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Catalogue: GRDC Factsheets
" RepRinted july 2014 summerfallow FACTSHEET spraying northern, southern and western regions ImPLICATIOnS fOr nOzzLe SeLeCTIOn And QuALITy frOm reCenT TrIAL reSuLTS.. plan to control summer weeds early and have the sprayer ready to go If spraying to conserve soil moisture and retain nutrients over summer, early weed fallow control can increase the yield potential of future crops... Trials 2 & 3: Heliotrope control at mintaro, sa Site and treatment details: Site location: mintaro, mid-north of South Australia Spraying date: 13 february 2012 Site condition: a bean stubble, with all residue lying on the ground Target species: heliotrope, 10 to 20cm high, flowering to seed set, variable density Spraying conditions: temperature 29.3 C to 32.8 C, humidity 13 to 16 per cent, delta T of 14.5 to 15.5, wind speed average 7.7km/h, gusts to 16.5km/h, very warm afternoon Herbicide treatments: 1...
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Catalogue: GRDC Factsheets
" RepRinted july 2014 summerfallow FACTSHEET spraying northern, southern and western regions ImPLICATIOnS fOr nOzzLe SeLeCTIOn And QuALITy frOm reCenT TrIAL reSuLTS.. plan to control summer weeds early and have the sprayer ready to go If spraying to conserve soil moisture and retain nutrients over summer, early weed fallow control can increase the yield potential of future crops... Trials 2 & 3: Heliotrope control at mintaro, sa Site and treatment details: Site location: mintaro, mid-north of South Australia Spraying date: 13 february 2012 Site condition: a bean stubble, with all residue lying on the ground Target species: heliotrope, 10 to 20cm high, flowering to seed set, variable density Spraying conditions: temperature 29.3 C to 32.8 C, humidity 13 to 16 per cent, delta T of 14.5 to 15.5, wind speed average 7.7km/h, gusts to 16.5km/h, very warm afternoon Herbicide treatments: 1...
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Catalogue: GRDC Factsheets
" RepRinted july 2014 summerfallow FACTSHEET spraying northern, southern and western regions ImPLICATIOnS fOr nOzzLe SeLeCTIOn And QuALITy frOm reCenT TrIAL reSuLTS.. plan to control summer weeds early and have the sprayer ready to go If spraying to conserve soil moisture and retain nutrients over summer, early weed fallow control can increase the yield potential of future crops... Trials 2 & 3: Heliotrope control at mintaro, sa Site and treatment details: Site location: mintaro, mid-north of South Australia Spraying date: 13 february 2012 Site condition: a bean stubble, with all residue lying on the ground Target species: heliotrope, 10 to 20cm high, flowering to seed set, variable density Spraying conditions: temperature 29.3 C to 32.8 C, humidity 13 to 16 per cent, delta T of 14.5 to 15.5, wind speed average 7.7km/h, gusts to 16.5km/h, very warm afternoon Herbicide treatments: 1...
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Catalogue: GRDC Factsheets
Spraying conditions: temperature 18.5 C to 22 C; humidity nozzle and water rate treatments: as per Table 2. rainwater 27 to 22 per cent; sunny; delta T 9.75 was used as the carrier, products mixed according to label instructions... Herbicide treatment: roundup Attack (570 grams per litre) 1.4L/ha + Amicide Advance (700g/L) 800 millilitres + oil and summary of results for heliotrope trials non-ionic surfacant (0.5 per cent) spray.seed treatments nozzle and water rate treatments: See Table 1; rainwater was At 16 dAT all treatments had over 70 per cent control and at 24 used as the carrier, products were mixed according to label dAT maximum control was 98 per cent... A TTI nozzle that produces an extremely coarse spray quality has resulted in reduced efficacy in situations such as where tank mixes have included triclopyr products, where oil-based adjuvants have been used, where larger than an 02 orifice has been used and where the nozzle pressure was below 4 bar...
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Catalogue: GRDC Media
Grain growers are urged to have the sprayer ready to go and to spray summer weeds early in order to conserve moisture and increase the yield potential of future crops... A new Grains Research and Development Corporation (GRDC) fact sheet, Summer Fallow Spraying, gives growers and advisers the latest information for spray application and quality resulting from GRDC-funded research... Choose the coarsest spray quality that will provide efficacy with the products selected...
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