000 01628nab a22005177a 4500
001 G53930
003 MX-TxCIM
008 121211b |||p||p||||||| |z||| |
022 0 _a0079-2985
040 _aMX-TxCIM
041 0 _aEn
043 _aPL
072 0 _aF06
072 0 _aF08
082 0 4 _a89-140696
100 1 _aGrzebisz, W.
245 0 0 _aInfluence of crop rotation and irrigation on properties of soil humus substances
260 _c1987
340 _aPrinted
500 _a4 tables; 14 ref. Summary (Pl)
520 _aWhen cereals were increased to 75 percent of the rotated crops there was a decrease in the amount of total carbon in the soil and an increase in the content of mobile humus fractions. Those adverse effects were alleviated by correct nitrogen fertilization and manuring
546 _aEnglish
591 _aCOMOD
595 _aAC
650 1 0 _aChemical composition
_91038
650 1 0 _aCropping patterns
_91067
650 1 0 _aCropping patterns and systems
650 1 7 _aCrops
_gAGROVOC
_2
_91069
650 1 7 _aCultivation
_gAGROVOC
_2
_91071
650 1 0 _aEastern Europe
650 1 0 _aEconomic plants
650 1 0 _aElements
650 1 0 _aEurope
650 1 7 _aFertilizers
_gAGROVOC
_2
_91111
650 1 0 _aGrain crops
_gAGROVOC
_91926
650 1 7 _aIrrigation
_gAGROVOC
_2
_91164
650 1 0 _aMethods
_91178
650 1 0 _aNonmetals
650 1 0 _aOrganic matter
650 1 0 _aPlants
650 1 0 _aSoil amendments
650 1 0 _aSoil biology
700 1 _aJaworski, R.,
_ecoaut.
773 0 _tPolish Journal of Soil Science
_n89-140696
_gv. 20, no. 2, p. 67-72
942 _cJA
999 _c16210
_d16210