References
- Kilmer , V.J. , Bennett , O.L. , Stahly , V.F. and Timmons , D.R. 1960 . Mineral composition of eight forage species grown at four levels of soil moisture . Agronomy Journal , 52 : 282 – 5 .
- Low , A.J. and Piper , F.J. 1960 . The influence of water supply on the growth and phosphorus uptake of Italian ryegrass and white clover in pot culture . Plant and Soil , 13 : 242 – 52 .
- Mitchell , J.D.D. 1967 . Watering techniques in glasshouse experiments . Report, Rothamsted Experimental Station 1966 , : 62 – 62 .
- Mountier , N.S. , Grigg , J.L. and Oomen , G.A.C. 1966 . Sources of error in advisory soil tests. I. Laboratory sources . N.Z. Journal of Agricultural Research , 9 : 328 – 38 .
- Olsen , S.R. , Watanabe , F.S. and Danielson , R.E. Phosphorus absorption by corn roots as affected by moisture and phosphorus concentration . Soil Science Society of America Proceedings . Vol. 25 , pp. 289 – 94 .
- Piper , C.S. 1942 . “Soil and Plant Analysis” , 368 – 368 . Adelaide : University of Adelaide .
- Richards , L.A. and Wadleigh , C.H. 1952 . Soil water and plant growth . Agronomy Monographs , 2 : 73 – 251 .
- Saunders , W.M.H. 1965 . Phosphate retention by New Zealand soils and its relationship to free sesquioxides, organic matter, and other soil properties . N.Z. Journal of Agricultural Research , 8 : 30 – 57 .
- Stanhill , G. 1957 . The effect of differences in soil moisture status on plant growth. A review and analysis of soil moisture regime experiments . Soil Science , 84 : 205 – 14 .
- Simpson , K. 1961 . Factors influencing uptake of phosphorus by crops in S.E. Scotland . Soil Science , 92 : 1 – 14 .
- Williams , C.H. and Simpson , J.R. 1965 . Some effects of cultivation and waterlogging on the availability of phosphorus in pasture soils . Australian Journal of Agricultural Research , 16 : 413 – 27 .