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At 3 sites on the El Barta plains of northern Kenya, the ecological effects of controlling the dominant shrub Disperma sp. near D. eremophilum were st...
Read moreThe establishment of tolerance levels for environmental contamination by pesticides, on the lines of those already in force for the contamination of h...
Read moreContains data giving the relative toxicities to rainbow trout (Salmo gairdneri[Oncorhynchus mykiss]) and bluegill (Lepomis macrochirus), a stonefly ny...
Read moreIn 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...
Read moreRoots of Hyparrhenia filipéndula contained a water-soluble, heat-labile and dialysable substance which inhibited nitrifying bacteria. Alcohol extracts...
Read moreA heat-labile substance toxic to nitrite-oxidizing bacteria was present in the outer tissues of roots of Hyparrhenia filipéndula; in the summer (Nov.-...
Read moreGrowth of an undefoliated stand of Italian ryegrass in the later stages of establishment was studied in detail for 6 months from winter to summer. Num...
Read more8 Mediterranean populations of P. tuberosa covering the climatic range from Morocco and Israel (severe summer drought, growing season 5-6 months) to N...
Read more1-yr-old seedlings of Pueraria lobata were planted in 1955 about 1.5 m apart along a long cultivated strip 2.5 m wide on denuded soil and given NPK in...
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