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| DOI: | 10.1016/j.agwat.2004.04.001 |
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| Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0378377404000927
Last checked: 05/30/2013
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Adema, Edgardo O.;
Buschiazzo, Daniel E.;
Babinec, Francisco J.;
Rucci, Tito E.;
Gomez Hermida, Vanina F. |
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| Author Affiliation: | Adema, Babinec, Buschiazzo and Rucci: EEA Anguil "Ing. Agr. Guillermo Covas", INTA, Anguil, Argentina; Adema and Gomez Hermida: Facultad de Ciencias Exactas y Naturales, UNLPam, Santa Rosa, Argentina; Buschiazzo: Facultad de Agronomía, UNLPam, Santa Rosa, Argentina |
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| Title: | Mechanical control of shrubs in a semiarid region of Argentina and its effect on soil water content and grassland productivity |
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| Source: | Agricultural Water Management. Vol. 68, No. 3, August 15 2004, p. 185-194. |
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| Publishing Information: | [Amsterdam]: Elsevier Scientific Pub. |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Woody ornamentals; Semiarid climates; Soil water content; Grasslands; Productivity; Mechanical control; Panicum coloratum; Interseeding; Rolling; Dry weight; Animal manures; Water use; Water balance
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| Geographic Terms: | Argentina |
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| Abstract/Contents: | "Mechanical shrub control with roller choppers can be an inexpensive and non contaminant system for increasing grassland production in rangelands dry regions. A field experiment was carried out between October 1997 and October 2001 in the "Caldenal-Jarillal" botanic district of Argentina, a natural rangeland ecosystem with a high water deficit thoughout much of the year. The trial was conducted on a Typic Ustortent and consisted of the following treatments: a control, the undisturbed natural condition (N), and rolled with (I) and without (R) interseeding of Panicum coloratum. Results showed that I and R improved soil water content within the upper 100 cm, dry matter production of grasses, amount of litter and water use efficiency as compared to N. The positive effect of rolling on soil water content was detected only in autumn months when water balance was positive. In summer months, when a negative water balance occurred, soil water content of rolled treatments was not different from that of the unrolled one. Consumptive water use was similar in rolled and unrolled treatments, and equivalent to the rainfall, reflecting the low soil water-holding capacity. The higher efficiency of water use in the rolled treatments indicated that grasses were more efficient in using the consumed water. The I and R values had similar vlaues of soil water content within the upper 100 cm, grass dry matter production, amount of litter and water use efficiency. However, a higher grass dry matter production in R than in I was noticed in part of the last year of this study. Grass dry matter production increased at the same rate in all treatments after 4 years, but litter remained constant in the unrolled treatments and decreased in the rolled ones. Mechanical shrub control with a roller chopper decreased shrub competition, thereby increasing the productivity of the ecosystem." |
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| Language: | English |
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| References: | 20 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Adema, E. O., D. E. Buschiazzo, F. J. Babinec, T. E. Rucci, and V. F. Gomez Hermida. 2004. Mechanical control of shrubs in a semiarid region of Argentina and its effect on soil water content and grassland productivity. Agric. Water Manage. 68(3):p. 185-194. |
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| DOI: 10.1016/j.agwat.2004.04.001 |
| Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0378377404000927
Last checked: 05/30/2013
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: S 494.5 W3 A34 |
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