Summary
The concentration, uptake and element use efficiency of N, P and K in one C3 annual (Polypogon monspeliensis) and two C4 (Echinochloa colonum, an annual, andDichathium annulatum, a perennial) grasses were determined during winter and summer seasons in monocultures raised in field plots at three moisture levels,viz. full, half and one-fourth of field capacity. At each moisture regime the plants were clipped thrice at moderate and severe levels corresponding to 40 and 80% of live green. The concentration of these elements was characteristic of the growth habit of these plants;e.g. the build up of concentration was maximum in leaf of the annuals while it was comparable in crown and leaf of Dichanthium. The N level was maximum in Polypogon. The nutrient use effiency was comparable in the two annuals and maximum K and N use were obtained in Polypogon and Dichanthium, respectively.
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Misra, G., Singh, K.P. Effect of soil moisture and clipping stresses on the nutrient (N, P and K) concentration, uptake and use efficiency in one temperate and two tropical grasses. Plant Soil 69, 413–421 (1982). https://doi.org/10.1007/BF02372462
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DOI: https://doi.org/10.1007/BF02372462