A-maize-ing crop

Shepparton News - Country News - - FRONT PAGE -

A maize crop grown by Ian and Mary Ha­mono has taken out the ir­ri­gated sec­tion of the 2018 Na­tional Maize Com­pe­ti­tion.

The Ha­monos grew a crop of Pi­o­neer hy­brid P1467 on their Cooma farm, south of Kyabram, which was yield tested at 19.54 tonne/ha.

The high­est yield­ing crop in the 2017 com­pe­ti­tion was 18.36 tonne/ha.

The win­ning crop was planted on Oc­to­ber 23 last year and was har­vested on April 19, with just 6 Ml/ha of wa­ter used through the sum­mer.

Each sea­son, Mr Ha­mono care­fully con­sid­ers his crop­ping op­tions for the area ir­ri­gated via both sub-sur­face drip ir­ri­ga­tion and pivot.

The high­est yield­ing crop of 19.54 tonne/ha was sown at a rate of 95 000 seeds/ha to the va­ri­ety P1467. Seed­ing rates vary across the farm, de­pend­ing upon va­ri­ety and ir­ri­ga­tion sys­tem.

The pivot ar­eas this year were sown at 87 000 seeds/ha for pop­corn. Used for feed, P9911 was sown at a rate of 100 000 seed/ha.

The win­ning maize en­try for 2018 was planted fol­low­ing a vetch silage crop that yielded 6 tonne/ha of dry mat­ter.

The area was then subbed-up us­ing the sub­sur­face drip ir­ri­ga­tion, then strip tilled and maize di­rectly planted into the mois­ture. A pre-emer­gent ap­pli­ca­tion of Dual Gold and Atrazine was then ap­plied onto the moist soil.

Mr Ha­mono said a large ben­e­fit of us­ing sub-sur­face drip ir­ri­ga­tion was be­ing able to ap­ply ni­tro­gen to match the crop de­mand, with a to­tal of 270 kg/ha of ni­tro­gen (as UAN) be­ing ap­plied via the sub-sur­face drip ir­ri­ga­tion sys­tem dur­ing the grow­ing sea­son.

The ni­tro­gen ap­pli­ca­tions started about two weeks af­ter seed­ing, with about 39 kg/ha of ni­tro­gen ap­plied ev­ery fort­night un­til tas­sel­ing.

Glen Boal, from Loch Lomond in south­ern Queens­land, won the dry­land com­pe­ti­tion with Pi­o­neer hy­brid P1888 at an ad­justed yield of 9.31 tonne/ha.

Reap­ing re­wards . . . Ian Ha­mono (pic­tured) and his wife Mary have won the Na­tional Maize Com­pe­ti­tion’s ir­ri­gated sec­tion, with a crop yield tested at 19.54 tonne/ha.

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