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Despite significant efforts to reduce polluting air emissions, during and after the economic transition in the 1990s, Poland remains home to many of t...
Read moreTabular data are given on landform, soil, vegetation and 9 categories of agricultural potential for 52 areas indicated on a map of the survey region.-...
Read moreObservations on two burning regimes during a 3-year period in Machakos district (5200 ft. alt., rainfall 25 in./year) showed that these thickets can b...
Read moreINGRAM, W. R. ; DAVIES, J. C. Recent advances in pest control on cotton in Uganda, p. 406, bibl. 1.
MACDONALD, A. S. Crop improvement and agricultural...
A study in April 1986 of sowing method (broadcast or buried), sowing density (8, 4, 0.8 seeds/m2) and granivory (using rodent exclosures) in an area o...
Read moreA study of naturally colonizing Betula pubescens and B. pendula on 10-yr-old soil cover up to 1 m deep on a 32-ha tailing near Garpenberg, Sweden. The...
Read moreA study in 5, 10 and 15-yr-old 'fallow' stands at 3 sites at 200-300 m altitude, in the Garo and Khasi hills (Meghalaya) and the Naga hills (Nagaland)...
Read moreA polyacrylamide and a polyvinylalcohol added at two concentrations (0.2% and 0.5% v/v) to soil for transplanted seedlings receiving a range of irriga...
Read moreData are presented from plots in pure stands of naturally regenerated P. contorta in SE Wyoming, USA, varying in age (25-117 yr), site index (10.8-22....
Read moreSampling of earthworm populations during 5- and 15-yr-old cropping phases and in 5-, 10- and 15-yr-old fallow phases of shifting agriculture at Shillo...
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