Ecological studies on salad crops. II

Studies on helminths of voles in Hokkaido. II. Ecological study.

Ecological Aspects of Genetically Modified Crops

It is evident from many recent analyses that the world’s population will increase significantly in the near future. As a result, the demand for healthy, affordable food will also grow. Given that the area of available arable land required to produce food will not expand, new and environmentally sound technologies allowing farmers to produce more on the same amount of land must be developed. The...

On Coastal Ecological Characterization Studies

technical assistance services are based on an analysis o f t h e issues a determination o f the decisionmakers involved and t h e i r i n f o r m a t i o n needs, and an evaluation o f the s t a t e o f the a r t t o i d e n t i f y information gaps and t o determine p r i o r i t i e s. This i s a strategy t h a t w i l l ensure t h a t the products produced and disseminated are t i m e l y an...

The release of genetically modified crops into the environment. Part II. Overview of ecological risk assessment.

Despite numerous future promises, there is a multitude of concerns about the impact of GM crops on the environment. Key issues in the environmental assessment of GM crops are putative invasiveness, vertical or horizontal gene flow, other ecological impacts, effects on biodiversity and the impact of presence of GM material in other products. These are all highly interdisciplinary and complex iss...

Intercropping studies with annual crops

This pape r tries to illustrate how beneficial interactions between crops can be exploited to increase the overall output of a cropping system. Growth studies with sorghum/pigeonpea and mil let /groundnut a re described to show how intercropping systems can achieve much larger yields than sole crops by using environmental resources more fully over t ime or more efficiently in space. D a t a fro...