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A method of estimating the total length of root in a sample.

Published online: 29 Oct 1967

Authors: Newman, E. I.

Content type: Journal article

Journal title: Journal of Applied Ecology

The line intersection method is described. In practical tests with plants, including beans, the method compared well with direct measurement.-Duke Uni...

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A method of estimating the total length of root in a sample.

Published online: 16 Jul 1966

Authors: Newman, E. I.

Content type: Journal article

Journal title: Journal of Applied Ecology

The roots are laid on a flat surface and the number of intersections between the roots and random straight lines are counted. Total root length is the...

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Phosphorus balance of contrasting farming systems, past and present. Can food production be sustainable?

Published online: 27 May 1998

Authors: Newman, E. I.

Content type: Journal article

Journal title: Journal of Applied Ecology

Phosphorus inputs and losses are calculated for contrasting farming systems: cereals were a major product in all systems. In typical modern British wh...

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Resistance to water flow in soil and plant. I. Soil resistance in relation to amounts of root: theoretical estimates.

Published online: 22 May 1970

Authors: Newman, E. I.

Content type: Journal article

Journal title: Journal of Applied Ecology

The mathematical models of Gardner (1960) and Cowan (1965) are developed to show that the soil matric potential at which rhizosphere resistance become...

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Resistance to water flow in soil and plant. 1. Soil resistance in relation to amounts of root: theoretical estimates.

Published online: 03 Jan 1969

Authors: Newman, E. I.

Content type: Journal article

Journal title: Journal of Applied Ecology

Data are presented for a range of species including perennial grasses, white clover, lucerne, cereals and soyabeans on the length of roots per unit ar...

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Phosphorus turnover in soil and its uptake by established Lolium perenne plants.

Published online: 25 Oct 1988

Authors: Jupp, A. P. & Newman, E. I. & Ritz, K.

Content type: Journal article

Journal title: Journal of Applied Ecology

A technique is described for measuring the time-course of uptake of 32P from soil. Carrier-free 32P was applied to the soil of potted Lolium perenne c...

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Phosphorus uptake from soil by Lolium perenne during and after severe drought.

Published online: 25 Oct 1988

Authors: Jupp, A. P. & Newman, E. I.

Content type: Journal article

Journal title: Journal of Applied Ecology

Mature Lolium perenne plants grown in pots of P deficient soil were subjected to gradually increasing drought, and uptake of P was determined during a...

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Resistance to water flow in soil and plant. II. A review of experimental evidence on the rhizosphere resistance.

Published online: 22 May 1970

Authors: Newman, E. I.

Content type: Journal article

Journal title: Journal of Applied Ecology

Experimental evidence claiming to show appreciable rhizosphere resistances in soils much wetter than permanent wilting point (sometimes even at soil m...

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Resistance to water flow in soil and plant. 2. A review of experimental evidence on the rhizosphere resistance.

Published online: 03 Jan 1970

Authors: Newman, E. I.

Content type: Journal article

Journal title: Journal of Applied Ecology

Results of some experiments on a range of species, including maize, castor and sunflowers, did not appear to be in accordance with the claim that appr...

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A method of estimating the total length of root in a sample.

Published online: 02 Jan 1967

Authors: Newman, E. I.

Content type: Journal article

Journal title: Journal of Applied Ecology

In this technique the roots are laid out on a flat surface and a count is made of the number of intersections between the roots and random straight li...

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