000			01972nab a22003137a 4500
001			68892
003			MX-TxCIM
005			20250620153633.0
008			250604s1999 -uk|||p|op||| 00| 0 eng d
022			_a0144-8765
022			_a2165-0616 (Online)
024	8		_ahttps://doi.org/10.1080/01448765.1999.9755239
040			_aMX-TxCIM
041			_aeng
100	1		_aRahkonen, J. _939097
245	1	4	_aThe effects of flame weeding on soil microbial biomass
260			_aUnited Kingdom : _bTaylor & Francis, _c1999.
500			_aPeer review
520			_aThe effects of liquefied petroleum gas (LPG) flaming on soil microbial biomass and soil temperature were studied in a laboratory trial. The trial was arranged to imitate the most common weed flaming practice, non-selective flaming pre-emergence of the crop. Soil samples were taken, without disturbing the soil surface, before the germination of the crop from a field cultivated and sown in the spring. The microbial biomass in the 0–5 mm depth, measured by substrate induced respiration (SIR), was decreased by 19% when the soils were flamed with open flame burners using a flaming intensity of 4600 MJ ha−1. The treatment was quite extreme, corresponding to a propane dose of 100 kg ha−1, while the usual dose in practice is 20–80 kg ha−1. Flaming had little effect on microbial biomass deeper in the soil (5–10 mm). The soil temperature at 5 mm depth was raised by 4.0°C and at 10 mm by 1.2°C. It is concluded that the threat that flaming poses to soil microorganisms is small.
546			_aText in English
650		7	_aWeeding _2AGROVOC _910003
650		7	_aSoil _2AGROVOC _94828
650		7	_aBiomass _2AGROVOC _91897
650		7	_aPetroleum _2AGROVOC _939102
700	1		_aPietikäinen, J. _939098
700	1		_aJokela, H. _939099
773	0		_dUnited Kingdom : Taylor & Francis, 1999. _gv. 16, no. 4, p. 363-368 _tBiological Agriculture & Horticulture _x0144-8765
942			_2ddc _cJA _n0
999			_c68892 _d68884