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A computer model was developed simulating the mating behaviour and population increase of adults of Spodoptera littoralis (Boisd.) in an isolated grou...
Read moreBare soil evolved a maximum of 7 g CO3/m2/day in summer and a minimum of 1 g/m2/day in winter; the Q10 was 3. Root respiration, i.e. the difference in...
Read moreEquations are developed for estimating plant DM production. Estimates for a range of crops growing between 14 deg S. and 43 deg N. agreed well with me...
Read moreSegetal plants, which grow preferentially or exclusively in cereal fields, experienced a strong decline during the last century. Among them, Bromus gr...
Read moreTemperatures were measured in a perennial ryegrass crop in the field and an attempt was made to relate temperature to growth. The instruments used are...
Read morePhosphorus inputs and losses are calculated for contrasting farming systems: cereals were a major product in all systems. In typical modern British wh...
Read moreThe influence of interplanted shade trees on the light regime at the surface of mature tea bushes is described. Most of the light reaching a tea bush ...
Read moreHuman well-being is highly dependent on nature, especially with respect to food provision. This study has been developed in the ecosystem service fram...
Read moreFactors determining human densities in the central African forests are examined and compared with the predictions from an agronomic model by the Food ...
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