אסיף מאגר המחקר החקלאי

Aerobic deterioration in maize silage stored in a bunker silo under farm conditions in a subtropical climate

Year:

1988

Source of publication :

Authors :

Volume :

45

Co-Authors:

Ashbell, G., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel
Lisker, N., Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan, 50250, Israel

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Abstract:

Whole maize plants at the milk and dough maturation stages were ensiled in August and October 1984, for periods of 45 and 40 days, respectively. Thirteen net bags containing herbage samples were buried at different locations within the silo to determine changes and losses during the conservation period. Thermocouple wires and small‐diameter plastic pipes were connected to every bag for temperature and gas measurements. Air penetration in the upper layer was much faster than in the inner parts. Losses in dry matter of 3.9‐7.4% were found in well sealed sites in the bunkers, and of up to 36% at locations where air penetrated. The rate of air penetration into the silage and temperature at various sites in the bunker were recorded. Correlation between CO2, and N2, contents in the silage was very high (r2 = 0.995) whereas oxygen levels were close to zero. Copyright © 1988 John Wiley & Sons, Ltd

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