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Titolo:
INFILTRATION CHARACTERISTICS UNDER NO-TILL AND CLEAN-TILL FURROW IRRIGATION
Autore:
CHRISTENSEN NB; JONES TL; KAUTA GJ;
Indirizzi:
FARMLAND IND,7441 O ST LINCOLN NE 68510 NEW MEXICO STATE UNIV,DEPT AGRON & HORT,DEPT 3Q LAS CRUCES NM 88003 MINIST AGR,DEPT AGR RES LILONGWE MALAWI
Titolo Testata:
Soil Science Society of America journal
fascicolo: 5, volume: 58, anno: 1994,
pagine: 1495 - 1500
SICI:
0361-5995(1994)58:5<1495:ICUNAC>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOIL; MANAGEMENT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
N.B. Christensen et al., "INFILTRATION CHARACTERISTICS UNDER NO-TILL AND CLEAN-TILL FURROW IRRIGATION", Soil Science Society of America journal, 58(5), 1994, pp. 1495-1500

Abstract

Tillage or the lark of tillage affects infiltration and its variability across the field. To quantify infiltration characteristics of soil under no-till and clean-till furrow irrigated systems, a 3-yr rotationof wheat (Tritium aestivum L.)-sorghum [Sorghum bicolor (L. ) Moench]-fallow on a Pullman sandy clay loam soil (fine, mixed, thermic Torrentic Paleustoll) was initiated. Treatments were no-till and clean-till with or without wheel traffic. Soil water contents, water advance timesdown the furrow, wetted cross-sectional area of flow, and cumulative furrow infiltration during three irrigations for each cropping event were determined. No-till treatments conserved significantly more soil water (3.0 cm) during the fallow periods than clean-till. Average wateradvance times to the end of the field were 301 and 175 min for no-till and clean-till, respectively. Wheel traffic significantly decreased advance times, by a factor of 1.98, during the initial irrigations at planting with no effect on subsequent irrigations. Wetted cross-sectional area in no-till furrows was significantly greater than in clean-till during sorghum irrigations, averaging 0.0206 and 0.0093 m(2), respectively. However, these factors did not contribute to a consistent increase in infiltration in the no-till treatments. Grain yields for sorghum were significantly greater in no-till than clean-till: 4147 and 3584 kg ha(-1), respectively, but clean-till wheat yields (5414 kg ha(-1)) were significantly greater than no-till yields (4657 kg ha(-1)). No-till conserved more water during the fallow periods, but surface characteristics of planting wheat no-till in sorghum residue may decrease uniformity over long furrows.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 08:08:59