Articles
ASPARAGUS OFFICINALIS L. YIELD UNDER THREE LEVELS OF POTASSIUM APPLIED ON A SALINE SOIL OF THE PERUVIAN COAST
Article number
950_5
Pages
59 – 64
Language
English
Abstract
Three levels of potassium (K) fertilization (190, 380, 570 kg K2O ha-1 year-1) were evaluated in an asparagus plot in Huarmey Valley, Santa Rosita Farm under drip irrigation.
Initial exchangeable K was between 0,13 and 0,16 cmol(+) kg-1. 60% of K was applied for the first growth cycle and the remaining 40% K was applied for the second growth cycle.
Harvest occurred after each growth cycle.
First harvest showed that increasing the dose of K the asparagus yield increased, but no significant differences were found.
In the second harvest the highest yield was obtained with the lowest K level, followed by the highest level.
The lowest yield was obtained with the K level the farm usually uses (380 kg K2O ha-1).
Initial exchangeable K was between 0,13 and 0,16 cmol(+) kg-1. 60% of K was applied for the first growth cycle and the remaining 40% K was applied for the second growth cycle.
Harvest occurred after each growth cycle.
First harvest showed that increasing the dose of K the asparagus yield increased, but no significant differences were found.
In the second harvest the highest yield was obtained with the lowest K level, followed by the highest level.
The lowest yield was obtained with the K level the farm usually uses (380 kg K2O ha-1).
Publication
Authors
D. León, R. Riojas, A. Casas
Keywords
Asparagus officinalis L., K levels, yield
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