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In investigations in New Zealand, percentage estimates of the total mortality of Pieris rapae (L.) due to ground-living arthropod predators obtained b...
Read moreIn competition experiments the suppression of Early Hybrid by F1 Selma was not eliminated by increasing nutrient supply levels up to several times the...
Read moreCompetition between the 2 strains was studied in pot experiments. It was found that F1 Selma (FS) suppressed Early Hybrid (EH) in mixed culture, altho...
Read moreA new field technique to estimate photosynthesis is described. It relies on describing direct and diffused light fluxes within the canopy, and photosy...
Read moreAt higher soil water contents, chloride uptake by onion roots was greater, and the zones of depletion extended further. Models of ion transport were d...
Read moreBy means of factor analysis of concentrations of Cu and Zn in soil and of Cu, Zn, Fe and Mn in vegetation, the relationships between biogeochemistry, ...
Read moreAspects under study in a Northumberland market garden included the distribution of slugs in soil under potato plants and grassland during June to Nove...
Read moreTheoretical considerations indicated that it was possible to increase the precision of estimation of vegetation cover by reducing the number of pins i...
Read moreA compartment model is described which simulates the root biomass dynamics of shortgrass prairie; fluxes between compartments are treated as time-vary...
Read moreRice cv. Calrose was germinated under water with or without an oil overlay to impede gas exchange. The shoot was the first and most prominent structur...
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