NUTRIENT ACCUMULATION IN DRYBEANS
Abstract
The objective of this experiment was to evaluate the accumulation and exportation of nitrogen (N), phosphorus
(P) and potassium (K) in drybean shoots and grains in response to irrigation, fertirrigation with N and seed micronutrient
application. The experiment was conducted on a loam Podzolic soil, in Santa Maria, RS. A complete randomized block
design was the experimental layout with six treatments and six repetitions. The accumulation of N, P and K was determined
at 49 (anthesis) and 71 (physiological maturity) days after emergency. The exportation and accumulation of N, P and K were
highly influenced by irrigation. The use of irrigation resulted in a exportation of 92.8 kg/ha of N, 15.9 kg/ha of P and 60.9 kg/
ha of K by crop grains. The cummulative nutrient exportations through grains and shoots were of 117.6 kg/ha of N, 18.7 kg/
ha of P and 87.0 kg/ha of K.
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