000			01595nab a22003617a 4500
001			G33712
003			MX-TxCIM
008			121211b |||p||p||||||| |z||| |
040			_aMX-TxCIM
041	0		_aEn
043			_aGB
072		0	_aP33
090			_aREP-4175
100	1		_aO'Sullivan, M.F.
245	0	0	_aInterpretation and presentation of cone resistance data in tillage and traffic studies
260			_c1987
340			_aPrinted
500			_aTables, graphs, references p. 147-148
520			_aRecommendations are made regarding the analysis and presentation of cone resistance data. Methods for eliminating extreme readings due to stones are compared and the effects of stones on variability and treatment comparisons are discussed. Results showed very high variability between positions, even at 100 mm separation. Measurements separated by more than 1 m were independent of each other except where trends in other soil properties influenced cone resistance. The assessment of compaction under wheels is described for cone resistance measurements made under the rut centre-line. Parameters are derived from measurements made on two-dimensional,
546			_aEnglish
595			_aRPC
650	1	0	_aMeasuring instruments
650	1	0	_aSoil compaction
650	1	0	_aSoil strength
650	1	0	_aSoils
650	1	0	_aStatistical analysis _91276
650	1	0	_aStones
650	1	0	_91832 _aTillage _gAGROVOC
700	1		_aCampbell, D.J., _ecoaut.
700	1		_aDickson, J.W., _ecoaut.
773	0		_tJournal of Soil Science _n617553 _gv. 38, no. 1, p. 137-148
942			_cJA
999			_c12217 _d12217