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To estimate the effect of foliage at different positions in the profiles of kale crops on the rate of photosynthesis below it, crop LAI was varied by ...
Read moreNatural populations of Trifolium repens collected from contrasting soil types differed in response to Ca, Mg and K when grown in sand culture. Populat...
Read moreResults of some experiments on a range of species, including maize, birdsfoot trefoil, perennial ryegrass, meadow foxtail and intermediate wheatgrass,...
Read moreThe Zn and Cu tolerance of populations of Agrostis tenuis, A. stolonifera, Anthoxanthum odoratum, Festuca rubra and F. ovina was tested on root growth...
Read moreThe Luangwa Valley is about 700 km long and up to 90 km wide, and contains about 15, 000 km2 of game reserves where local overgrazing and overbrowsing...
Read moreTo estimate the effect of foliage at different positions in the profiles of kale crops on the rate of photosynthesis below it, crop LAI was varied by ...
Read moreWhen weather was favourable (warm, dry) for ovi-position by O. frit, the combined activity of predators and parasites was found to be inadequate to pr...
Read moreResults 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...
Read moreYoung plants of 5 species were grown in pots for 8-16 days in daylight under shades constructed of 6-mm strips. The shades were fixed or were made to ...
Read moreAnalytical data (tabulated) show that A. indica has considerably improved the nutrient content and physical condition of the infertile acid sands on w...
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