000			02918nab|a22003737a|4500
001			64737
003			MX-TxCIM
005			20211217230406.0
008			201118s2004||||ja |||p|op||||00||0|eng|d
022			_a1343-943X
022			_a1349-1008 (Online)
024	8		_ahttps://doi.org/10.1626/pps.7.356
040			_aMX-TxCIM
041			_aeng
100	0		_aYasuhiro Izumi _926094
245	1	0	_aMaize-soybean-cowpea sequential cropping as a sustainable crop production for acid-infertile clay soils in Indonesia
260			_aJapan : _bTaylor & Francis, _c2004.
500			_aPeer review
500			_aOpen Access
520			_aAt mid-elevation terraces in the southern part of Sumatra Island, Indonesia, cassava is widely cultivated as one of the most important cash crops for farmers. However, the prominent cassava cultivation system includes the intercropping of cereal crops and rapidly depletes soil fertility. Hence establishment of a sustainable food-crop production system without cassava cultivation is required. A three-way experiment with maize-soybean-cowpea sequential cropping was designed to investigate the following main effects: tillage or no-tillage, mulching or no-mulching and government recommendation or farmersżtraditional fertilization. Crop productivity and soil erosion were used as indicators of sustainability. At the end of the experiment, root system development of soybean was assessed to elucidate the cumulative effects of treatments on the soil environment for root growth. Fertilization treatments increased yields in all years, whereas mulching significantly increased only from the third year. The no-tillage treatment tended to reduce yields. Soybean root growth at surface level was markedly reduced by no-tillage and slightly improved by mulching. Erosion was reduced by mulching, no-tillage, and fertilization by the government recommendation. Because of its cumulative effect on increasing soil fertility and reducing erosion, the practice of mulching was highly recommended. A sufficient amount of fertilization (government level) was also recommended to maintain the fertility and to support sufficient plant growth to minimize erosion. The no-tillage practice was not recommended because it reduced crop yields, although the treatment efficiently controlled soil erosion.
546			_aText in English
650		7	_aCowpeas _2AGROVOC _95144
650		7	_aErosion _2AGROVOC _91961
650		7	_aMaize _2AGROVOC _91173
650		7	_aMulching _2AGROVOC _95840
650		7	_aAcid soils _2AGROVOC _94688
650		7	_aRoots _2AGROVOC _91755
650		7	_aSoybeans _2AGROVOC _93639
700	1		_aYuliadi, E. _926095
700	0		_aMorio Iijima _926096
773	0		_gv. 7, no. 3, p. 356-362 _dJapan : Taylor & Francis, 2004. _tPlant Production Science _x1343-943X _wu66090
856	4		_yClick here to access online _uhttps://doi.org/10.1626/pps.7.356
942			_cJA _n0 _2ddc
999			_c64737 _d64729