Bulletin 25 2010 - BSES

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18 QCrOps / BrAD hussey, TiM sTAier The effeCT Of zONAL TiLLAGe ON yieLD While it is evident that significant savings can be made from the adoption of zonal tillage, these savings can soon be lost if zonal tillage results in lower yields. The project team assessed yields achieved from zonal tillage in their trials. So far, only the trials established in the first year of the project have been harvested. Additional trial harvests will take place over the next 2 years as the project progresses. The tillage treatments included combinations of full cultivation, zonal bed renovation, zonal ripping, zonal rotary hoeing and zero tillage. Results from the Year 1 trial harvest are shown in the tables to the right, firstly as the yield achieved by each of the treatments in the trials, and then as a percentage of the yield achieved by the bed renovator treatment. The second table allows simple comparisons among the various tillage systems. suMMAry Of yieLD DATA frOM yeAr 1 hArvesT from the yield data a few observations can be made: • All treatments can produce good yields • Zero till with good soil conditions into existing beds can produce good results A few points noted by the project team include: • It was hard to achieve good soil-sett contact with limited cultivation in heavy clay soils • Yield is dependent to some extent on plant establishment (a poor plant establishment will lead to lower yields) • Plant establishment is influenced by soil-sett contact for more information about this project contact Brad Hussey (Ph. 07 4963 6803 or 0408 185 139) or Tim Staier (Ph. 07 4963 6819 or 0419 789 700). Trial Bed renovate Zonal rip rotary hoe Zonal rip Zero till Trash incorporated 1 86 85 87 2 101 92 3 94 95 4 74 70 64 5 62 63 62 6 122 108 TABlE 2 | Actual yields (tonnes cane/ha). Trial Bed renovate Zonal rip rotary hoe Zonal rip Zero till Trash incorporated 1 2 100% 99% 102% 3 100% 101% 4 100% 95% 86% 5 100% 102% 100% 6 100% 89% Average 100% 95% 99% 101% 93% TABlE 3 | Yields as a percentage of the bed renovated treatment. [While it is evident that significant savings can be made from the adoption of zonal tillage, these savings can soon be lost if zonal tillage results in lower yields.]
Bses LiMiTeD / eve MCDONALD past iN This issue, We CONTiNue Our visiT ‘BACk iN TiMe’ By prOviDiNG A BLAsT frOM The pAsT sNAp shOT Of pLANTiNG, Be iT eQuipMeNT Or By hAND. 1 4 6 PHOTO 4 Planting cane seedlings from pots to the field at Meringa, 1959. These photographs are a part of the extensive BSES photo library that contains historical and current photographs. Keep an eye out for further Bulletin issues for more glimpses into the past. PHOTO 5 Planting sugarcane – date unknown. PHOTO 6 Planting cane in 1967. for further information on these and other BSES photographs please contact Eve McDonald on 07 3331 3340 or emcdonald@bses.org.au. PHOTO 1 Planting trial at Mackay Sugar Experiment Station, August 1963. PHOTO 2 Digging holes in the drills for planting seedlings, Meringa 1958. 2 PHOTO 3 Close-up of planter, showing the attachment for good fertiliser placement, Mackay Sugar Experiment Station, July 1965. 5 3 7 PHOTO 7 Early style cane planter. p 1 9 i s s u e 2 5
Page 1 and 2: issue 25 | 2010 bulletin Providing
Page 3 and 4: QCrOps / BArry sALTer evALuATiON Of
Page 5 and 6: TABlE 4 | Cane (TCH) and sugar (TSH
Page 7 and 8: QCANes / vArieTy upDATe vArieTies r
Page 9 and 10: MAryBOrOuGh CANe prODuCTiviTy servi
Page 11 and 12: IMAGE 1 | Spores of the protozoan d
Page 13 and 14: MONiTOriNG Childers canegrub life c
Page 15 and 16: 7 risk Of iNTrODuCTiON The movement
Page 17: Grower Area of cane (ha) Soil type
Page 21 and 22: Heather Boreland, Head of the Scien
Page 23 and 24: 1 5 A widely used saying in the ind
Page 25 and 26: for cane borers that could spread t
Page 27 and 28: Bses LiMiTeD / DATe CLAiMers 2010 B

Bulletin 25 2010 - BSES

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