I. Vallis

发表

Simulation of the effects of trash and N fertilizer management on soil organic matter levels and yields of sugarcane

W. Parton, B. Keating, A. Wood, 1996 .

Sampling for soil nitrogen changes in large areas of grazed pastures

I. Vallis, 1973 .

Fate of urea-nitrogen from cattle urine in a pasture-crop sequence in a seasonally dry tropical environment

R. Jones, I. Vallis, R. Mccown, 1985 .

The nitrogen mineralization rate of legume residues in soil as influenced by their polyphenol, lignin, and nitrogen contents

R. H. Fox, I. Vallis, R. Myers, 1990, Plant and Soil.

Short-term nitrogen balance in urine-treated areas of pasture on a yellow earth in the subhumid tropics of Queensland

I. Vallis, C. Gardener, 1984 .

The effect of stubble management on the availability of 15N-labelled residual fertilizer nitrogen and crop stubble nitrogen in an irrigated black earth

P. Saffigna, I. Vallis, P. White, 1986 .

Isotopic studies on the uptake of nitrogen by pasture plants. III. The uptake of small additions of 15N-labelled fertilizer by Rhodes grass and Townsville lucerne

P. Ross, I. Vallis, K. Haydock, 1967 .

Natural abundance of

P. Saffigna, I. Vallis, J. Doughton, 1991 .

Nitrogen fixation in chickpea. II: Comparison of 15N enrichment and 15N natural abundance methods for estimating nitrogen fixation

P. Saffigna, I. Vallis, R. Mayer, 1995 .

Ammonia loss from fertilizer applied to tropical pastures

L. Harper, I. Vallis, V. Catchpoole, 1983 .

Nitrogen cycling in south-east asian wet monsoonal ecosystems

I. Vallis, 1984 .

An indirect method for estimating 15N isotope fractionation during nitrogen fixation by a legume under field conditions

P. Saffigna, I. Vallis, J. Doughton, 1992, Plant and Soil.

Nitrogen fixation in chickpea. I. Influence of prior cropping or fallow, nitrogen fertilizer and tillage

P. Saffigna, I. Vallis, J. Doughton, 1993 .

Uptake of soil nitrogen by legumes in mixed swards

I. Vallis, E. Henzell, T. Evans, 1977 .

Natural abundance of 15N in barley as influenced by prior cropping or fallow, nitrogen fertilizer and tillage

P. Saffigna, I. Vallis, J. Doughton, 1991 .

Soil nitrogen changes under continuously grazed legume-grass pastures in subtropical coastal Queensland

I. Vallis, 1972 .

Isotopic studies on the uptake of nitrogen by pasture plants. V. 15N balance experiments in field microplots

P. Ross, I. Vallis, E. Henzell, 1973 .

18 – Nitrogen Inputs into Agricultural Systems by Stylosanthes

I. Vallis, 1984 .

Potential for biological denitrification of fertilizer nitrogen in sugarcane soils

I. Vallis, R. Myers, V. Catchpoole, 1996 .

Uptake by grass and transfer to soil of nitrogen from 15N-labelled legume materials applied to a Rhodes grass pasture

I. Vallis, 1983 .

Volatilization of ammonia from urine patches in a subtropical pasture

L. Harper, I. Vallis, L. A. Harper, 1982 .