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The weed flora of the unsprayed field margins of 19 fields in arable crop rotations was studied in Denmark in 1988-92. The farmer determined the crop ...
Read moreIntact profiles of soil from a field in UK that had been direct-drilled for 5 years and from the same soil that had been regularly ploughed were steri...
Read moreThe 2 sources of CO2 for canopy photosynthesis are the soil and the atmosphere. For a barley crop, calculations of root respiration rate based on meas...
Read moreRates of photosynthesis of leaves and ears were measured after anthesis in a field of barley cv. Proctor using a simple leaf chamber with polypropylen...
Read moreTotal solar, near infra-red, and photosynthetically active radiation were measured by tube solarimeters at Rothamsted in barley, sugar beet, field bea...
Read moreOrganic, inorganic and integrated nutrient management, and intercropping practices were compared in terms of productivity, soil erosion and rain water...
Read moreIntercropping is receiving increasing attention because it offers potential advantages for resource utilization, decreased inputs and increased sustai...
Read moreThere are many arthropod species on farmland that are not economic pests but which have an important role in the wider ecology of agricultural ecosyst...
Read more1. Fields left fallow after harvest (i.e. stubble fields) support high wintering densities of many species of granivorous bird. We examined correlates...
Read moreSeed samples of wheat and barley were collected in Nepal and Pakistan, from c. 100 villages in each country. Nepal is said to be a Vavilovian 'centre ...
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