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Transpiration rates of Douglas-fir trees (Pseudotsuga menziesii) were measured in the field, using tritiated water (HTO) as a tracer for water. Sites ...
Read moreThe distribution of N, P, K, Ca, Mg and Mn in a 175-year-old Abies amabilis ecosystem is described and estimates of transfers within the system are gi...
Read moreOn plots of oats and barley brown hares grazed much more heavily on the outer rows, alongside the space between the plots, than on inner rows. On barl...
Read moreMonocultures and mixtures of crimson clover and ryegrass (Lolium multiflorum) were grown in filtered air or 0.03 or 0.09 p.p.m. O3 concentrations for ...
Read moreThe seasonal growth patterns of micro-swards of a single genotype of perennial ryegrass cv. S23 were studied at 4 sites at various alt. in mid-Wales o...
Read moreThe authors had earlier [see HbA 44, 3551] described a computer program in which plant growth-analysis quantities of the general form (1/Y)(dY/dX), Z/...
Read moreA new instrument, which is portable, easy to use and gives an immediate digital display of percentage transmission, for measuring the percentage trans...
Read moreThe unwanted development of dense understorey vegetation composed of resource-acquisitive, tall plant species competing strongly with tree regeneratio...
Read moreStudies were carried out in Ghana on the population dynamics of larvae of Characoma stictigrapta Hmps., a pest of the pods and leaves of cacao. Larvae...
Read moreUsing data from the 2016 Arkansas Irrigation Survey, this study documents the use pattern of irrigation practices including both irrigation technologi...
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