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In each of three years, sugar beet was grown on; seven different soils with two rates of fertilizer-N. Differences in yield between different soils an...
Read moreAbandoned cutover peatlands are persistent sources of atmospheric CO2. Net ecosystem CO2 exchange and Sphagnum net primary production of an abandoned ...
Read moreSeasonal changes in relative growth rate (RGR) and its components, net assimilation rate (NAR) and leaf area ratio (LAR), were measured in Mediterrane...
Read moreCO2 exchange was measured in Bouteloua gracilis swards in the field. Rates of net photosynthesis as high as 65 mg CO2/dm2 h were observed under optimu...
Read moreIn experiments at Kabanyolo, Uganda, in which radiation incomes were measured and growth analysis was employed, seedlings of both robusta and arabica ...
Read moreA description is given of apparatus used for measuring photosynthesis and respiration in C. vulgaris under controlled conditions of light intensity, r...
Read moreTo estimate the effect of the foliage at different positions in the profiles of kale crops on the rate of photosynthesis below it, the leaf area index...
Read moreReports further studies in the stand of Pinus nigra var. maritima already described [see preceding abstract]. Net primary production of the Pine was n...
Read moreDM production ranged from <2 g/m2 day in winter to 20 g/m2 day in spring in barley cv. Sekitori-Sai No.1 sown in 15-cm bands 55 cm apart with 105 p...
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...
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