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Combining several crop species and associated agricultural practices in a crop sequence has the potential to control weed abundance while promoting we...

The effect of root and shoot competition and the application of 300 kg molybdenized superphosphate plus 50 kg N/ha on the growth of green panic seedli...

Plant cover data collected at Varanasi, India, for 2 successive years in pastures at different grazing intensities were used to formulate a simulated ...

Analysis of theoretical calculations and experimental measurements showed that the photosynthetically useful fraction of the solar spectrum for total ...

Seedlings of Matricaria matricarioides, M. recutita and Tripleurospermum maritimum ssp. inodorum which emerged in the field from January to June took ...

On 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...

Pure swards of S48 timothy and S215 meadow fescue, grown from seed in large concrete containers out of doors, were cut (a) every 4 weeks during summer...

Gives an ALGOL procedure that computes the length and direction of shadows from data on the geographical location, date, time of day and height of the...

Rice cv. Hokkaido-Carny was germinated in distilled water with or without impedance of surface O2 exchange by a 0.3-, 1.0- or 10-mm film of olive oil ...

Large-scale destruction of ecosystems caused by surface mining provides an opportunity for the study of colonization processes starting with primary s...