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Photocells were traversed at 6 canopy heights in a 15-yr-old plantation in North Carolina. When incident radiation was predominantly direct-beam, a bi...
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 equipment described makes use of a continuous measured flow (v) of dry N2O into a porometer cup attached to a known leaf area (a). The gas within ...
Read moreAs the crop developed and the sun's declination changed, mean values per day of the reflection coefficient increased from 0.15-0.23. After rain or irr...
Read moreIn the above area it is common practice to grow sorghum and other crops under trees of A. albida, which is leafless during the rainy season. Crop yiel...
Read morePotential annual production at optimal LAI in the absence of growth-limiting factors was estimated at 65 (metric) tons DM/ha. Allowing for summer drou...
Read moreSamples taken at Cedar Creek, Minnesota, showed that the above-ground parts of cattail [Typha angustifolia] and maize ecosystems contained much the sa...
Read moreEffects of total solar radiation and temperature on the early vegetative growth of Helianthus annuus cv. Polestar and Phaseolus vulgaris cv. Canadian ...
Read moreObservations were made in southern England in 1970-71 on aphid populations infesting the aerial shoots of spring cereals. Aphids mainly Acyrthosiphon ...
Read moreIn the above area it is common practice to grow sorghum and other crops under trees of A. albida, which is leafless during the rainy season. Crop yiel...
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