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1 Journal of Achievements in Materials and Manufacturing Engineering

1 2009

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The effect of direct seeding on the soil resistance and the silage corn yield

Stajnko D., Janzekovic M., Brus M., Cus F.

Journal of Achievements in Materials and Manufacturing Engineering

2009

Vol. 35, nr 2

184-190

Purpose: The paper compares the effect of five different direct seeding methods to the conventional tillage on the emerging and yield of silage corn (Zea may L.) in two different pedo-ecological conditions of Slovenia. Design/methodology/approach: A randomly selected 4x6 block designed field test was carried out; gliphosat treatment 1 week before seeding (V1), mowing+focus ultra on the whole plot 3 weeks later (V2), mowing+focus ultra in bands 3 weeks later (V3), mowing+focus ultra in bands 3 weeks later+mowing the inter-row after emergence (V4), conventional tillage (V5), focus ultra on the whole plot 3 weeks after seeding (V6). Findings: The highest emergence was on parcels with treatment V5; 98.99 % in Noršinci and 82.75 % in Pohorski dvor. The (V1) treatment influenced lowest emergence in Noršinci (82.48 %) and Pohorski dvor (63.25 %). The number of emerged seedlings affected the highest yield of fresh silage on V5 (50.590 kg ha-1 - Nošinci and 45.661 kg ha-1 - Pohorski dvor) and dry matter (20.228 kg/ha). However, there was no difference to V1 and V4. The penetrometer measurements showed the highest soil resistance (119.78 N cm-2) in Noršinci on V3 and (185.31 N cm-2) in Pohorski dvor on V4. Research limitations/implications: The experiment presented herein can be applied under similar pedo-climatical condition. Practical implications: Alternative seeding methods can reduce the fuel consumption and CO2 emission by decreasing the number of passes on the field. Originality/value: By implementing the findings from our experiments a high intensity of soil engagement and inversion of the soil by using of mouldboard plough can be omitted on the majority of sandy and silty-loam soils. On that way the energy saving-method can make an effective contribution to farmers’ economy.