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פותח על ידי קלירמאש פתרונות בע"מ -
Guano as a nitrogen source for fertigation in organic farming
Year:
1992
Authors :
הדס, אביבה
;
.
רוזנברג, רבקה
;
.
Volume :
31
Co-Authors:
Hadas, A., Institute of Soils and Water, A.R.O., The Volcani Center, Bet Dagan, 50250, Israel
Rosenberg, R., Institute of Soils and Water, A.R.O., The Volcani Center, Bet Dagan, 50250, Israel
Facilitators :
From page:
209
To page:
214
(
Total pages:
6
)
Abstract:
Guano is a natural organic fertilizer used in organic farming management when supplementary nitrogen is needed. In modern irrigated agriculture N top dressing is often applied through the irrigation water. The objective of this research was to evaluate the potential of guano as a source of available N when applied through water, compared with application to soil. The release of mineral and total soluble N from guano to water was monitored, as a function of time, under laboratory conditions, and compared with mineralization of guano in soils. The effect of guano:water ratio, aeration of the mixtures, addition of rock-phosphate or clay minerals, and temperature on the composition of the solutions was determined. Guano released more than 90% of its N content into solution during 10 d at a guano:water ratio of 1:10 at 27°C. The release of soluble N, of which 85% was NH4-N, was linked with an increase of pH from 7.0 to 8.5 or more. None of the treatments increased the rate or the total N release beyond that. Suboptimal temperatures, 13.6 ± 4.7°C or 50°C, greatly reduced the rate of guano-N release to solution. The mineralization of guano in soil was more rapid than in water, but the total N release was the same, leading to the conclusion that the application of guano through the irrigation water may be as efficient as directly to soil, provided sufficient time for fermentation is allowed. © 1992 Kluwer Academic Publishers.
Note:
Related Files :
CO2 evolution
fertigation
guano
N fertilizers
N mineralization
Organic farming
organic fertilizers
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/BF01063294
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
29979
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:51
Scientific Publication
Guano as a nitrogen source for fertigation in organic farming
31
Hadas, A., Institute of Soils and Water, A.R.O., The Volcani Center, Bet Dagan, 50250, Israel
Rosenberg, R., Institute of Soils and Water, A.R.O., The Volcani Center, Bet Dagan, 50250, Israel
Guano as a nitrogen source for fertigation in organic farming
Guano is a natural organic fertilizer used in organic farming management when supplementary nitrogen is needed. In modern irrigated agriculture N top dressing is often applied through the irrigation water. The objective of this research was to evaluate the potential of guano as a source of available N when applied through water, compared with application to soil. The release of mineral and total soluble N from guano to water was monitored, as a function of time, under laboratory conditions, and compared with mineralization of guano in soils. The effect of guano:water ratio, aeration of the mixtures, addition of rock-phosphate or clay minerals, and temperature on the composition of the solutions was determined. Guano released more than 90% of its N content into solution during 10 d at a guano:water ratio of 1:10 at 27°C. The release of soluble N, of which 85% was NH4-N, was linked with an increase of pH from 7.0 to 8.5 or more. None of the treatments increased the rate or the total N release beyond that. Suboptimal temperatures, 13.6 ± 4.7°C or 50°C, greatly reduced the rate of guano-N release to solution. The mineralization of guano in soil was more rapid than in water, but the total N release was the same, leading to the conclusion that the application of guano through the irrigation water may be as efficient as directly to soil, provided sufficient time for fermentation is allowed. © 1992 Kluwer Academic Publishers.
Scientific Publication
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