Publication Date

1993

Description

No-tillage is an increasingly acceptable practice for pasture renewal in New Zealand. Seeding and fertilising are the most difficult operations to consistently perform well in a residue-covered surface for establishment of subsequent pastures and crops. Two new seed drill openers for seed and fertiliser placement in conservation tillage are described. These openers, developed in New Zealand and tested extensively ln NZ, USA, Canada and Australia, create an inverted "T-shaped" slot, One version uses a single winged tine while the other version uses a single disk running straight ahead against which 2 winged side blades rub. They raise the soil for simultaneous placement of seed and fertiliser on opposite sides of the disc. Depth­press wheels immediately follow either opener to reset the raised soil and residue, firm the seed mne and maintain seeding depth.

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Inverted "T" Drill Openers for Pasture Establishment by Conservation Tillage

No-tillage is an increasingly acceptable practice for pasture renewal in New Zealand. Seeding and fertilising are the most difficult operations to consistently perform well in a residue-covered surface for establishment of subsequent pastures and crops. Two new seed drill openers for seed and fertiliser placement in conservation tillage are described. These openers, developed in New Zealand and tested extensively ln NZ, USA, Canada and Australia, create an inverted "T-shaped" slot, One version uses a single winged tine while the other version uses a single disk running straight ahead against which 2 winged side blades rub. They raise the soil for simultaneous placement of seed and fertiliser on opposite sides of the disc. Depth­press wheels immediately follow either opener to reset the raised soil and residue, firm the seed mne and maintain seeding depth.