EFFECTS OF NITROGEN, SULFUR, PHOSPHORUS AND BORON ON COTTON IN MALAWI

[11] PRIOR AJ, 1969, 1967 68 EAST PROV PR

[12] RODEL M G W, 1969, Rhodesia Agricultural Journal, V66, P24

[13] ROTHWELL A., 1967, Coir. Grow. Rev., V44, P23

[14] STOREY HH, 1933, ANN APPL BIOL, V20, P24

[15] Tisdale SL., 1966, SOIL FERTILITY FERTI, V2

[16] TUNSTALL J. P., 1961, Rhodesia Agricultural Journal, V58, P289

[17] TUNSTALL JP, 1968, A REP AGRIC RES COUN

[18] YOUNG A, 1962, PHYSICAL ENVIRONMENT

[11] PRIOR AJ, 1969, 1967 68 EAST PROV PR

[12] RODEL M G W, 1969, Rhodesia Agricultural Journal, V66, P24

[13] ROTHWELL A., 1967, Coir. Grow. Rev., V44, P23

[14] STOREY HH, 1933, ANN APPL BIOL, V20, P24

[15] Tisdale SL., 1966, SOIL FERTILITY FERTI, V2

[16] TUNSTALL J. P., 1961, Rhodesia Agricultural Journal, V58, P289

[17] TUNSTALL JP, 1968, A REP AGRIC RES COUN

[18] YOUNG A, 1962, PHYSICAL ENVIRONMENT