Calibration of soil test methods for the determination of phosphate and potash status F. van der Paauw OriginalPaper Pages: 105 - 125
Some observations on the correlated influence of fertilizers on peanut yields and vegetative development of the plants A. Huber OriginalPaper Pages: 126 - 131
Biological control of a soil-borne pythium infection by seed inoculation Joyce M. Wright OriginalPaper Pages: 132 - 140
The effect of ferrous sulphate on the yield and manganese uptake of oats on sandy soil fertilized with pyrolusite Else Boken OriginalPaper Pages: 160 - 169
Some observations on the microbial activity in remoistened air-dried soils I. L. Stevenson OriginalPaper Pages: 170 - 182