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008 870101n cr |||||r|||| 00| | eng d
022 _a0041-4360
040 _cCR-SiIICA
041 _aeng
100 _9123193
_aTafur, N.
100 _968543
_aForsythe, W.
245 _aThe effect of various methods of land preparation on soil resistance to penetration and yield corn (Zea mays L.), cassava (Manihot esculenta Crantz) and sweet potato (Ipomoea batatas L.) in association, 2: Effect on yield
440 _9171443
_aTurrialba (IICA)
_x0041-4360
_vv. 35(4) p. 371-376
500 _a8 ref. Sum. (En, Es); tab.
901 _aP33
_b00208
902 _aF08
903 _aE
904 _aIICA
905 _aC
906 _a19870101
908 _aJ
909 _aAS
942 _cART
942 _cIMP
999 _c2426
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