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2009 | Vol. 35, nr 2 | 184-190
Tytuł artykułu

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

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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.

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