Search

On flat bog with deep peat where heather (Calluna vulgaris), the principal food of the birds, was scarce application of superphosphate, or ground mine...

The iodine content of the top 15 cm of 132 soils formed from a variety of parent materials within the UK ranged from 0.5 to 98.2 mu g g-1 on a dry wei...

Populations were collected from twelve sites in Switzerland and Italy. Tetraploids occurred in grassland at high altitudes but in woodlands down to 11...

Four phases are recognized in the history of nature conservation in China; in the first phase, there was a gradual loss of biotic diversity and reduct...

The effects of various environmental factors on the ditch bank vegetation in peat areas in the western Netherlands were studied to find the best manag...

The use of sewage sludge, horse dung, NPK-fertilizer, and NPK-fertilizer plus bark to improve yields of grasses and clover sown on iron-mine tailings ...

Graphs and histograms are given showing changes in the stomatal resistance of Vicia faba leaves during the day as related to leaf insertion and date o...

Many invasive species are introduced by trade, and there is a need for studies of pre-emptive measures to lower the risk of introductions, as post-est...

Festuca pratensis and Lolium perenne developed their roots less rapidly when grown with their triploid hybrid than when grown alone or together. The e...

A study was made in the Northern Province, during Aug. and Oct. 1968, of the suitability of miombo woodland (Brachystegia/Julbernardia) for cattle rea...