000			02123nab a22003017a 4500
001			G62339
003			MX-TxCIM
005			20211006080625.0
008			121211b |||p||p||||||| |z||| |
040			_aMX-TxCIM
082	0	4	_a83-852108
100	1		_aWilson, G.F.
245	0	0	_aEffects of cover crops on soil structure and on yield of subsequent arable crops grown under strip tillage on an eroded alfosol
260			_c1982
340			_aPrinted
500			_a13 ref.; Summary (En)
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0167-1987
520			_aEffects of weed fallow and of three grasses and five leguminous cover crops were investigated on soil structure of an eroded Alfisol. Crop growth and yields of subsequently grown arable crops were assessed under strip-tillage through the mechanically or chemically suppressed sods. Cover crops and fallowing improved soil organic matter content, total N, water retention and transmission properties, and decreaed bulk density only in the top 0-10 cm depth. The improvements rendered were, however, slight. Grasses were difficult to suppress with paraquat or mechanical mowing, which resulted in low or negligible yield of maize, cowpea, and cassava. Leguminous covers were easily suppressed with paraquat application, and resulted in good yield of maize and cowpea. Mechanical mowing was as successful as herbicide appliation for suppressing Stylosanthes guianensis and resulted in satisfactory yield of maize and cowpea. Yield of cassava tubers was extremely low due to shallow surface soil, compacted sub-soil horizons, and competition from weeds and regrown cover crops. Results are discussed in terms of the amelioration of eroded and degraded soil
546			_aEnglish
595			_aAC
650	1	7	_aCultivation _gAGROVOC _2 _91071
650	1	0	_aPlant production _91212
650	1	0	_aSoil chemistry and physics
700	1		_aLal, R., _ecoaut.
700	1		_aOkigbo, B.N., _ecoaut.
773	0		_tSoil and Tillage Research _n83-852108 _gv. 2, no. 3, p. 233-250
942			_cJA
999			_c17763 _d17763