Articles
RESPONSE OF GREENHOUSE PEPPER CROP TO FERTILIZER LEVELS AND DIFFERENT QUALITIES OF IRRIGATION WATER
Article number
700_33
Pages
203 – 206
Language
English
Abstract
This work studies the effect of different nitrogen-phosphorous-potassium (NPK) dosages applied by fertigation and two types of irrigation water on the soil-plant system of a pepper crop in greenhouse conditions.
The experiment was conducted on a greenhouse California pepper crop, on a sand-mulched sandy loam soil and trickle irrigation.
Six different treatments were established, three rates of NPK applied by fertigation and two types of water (0.7 and 2.6 dS m-1). The amount of applied NPK in the different treatments is equivalent to 0, 50 and 100% of the total concentration extracted by the crop.
The pepper crop shows a positive response to an increase of NPK concentration in the nutrient solution; however when water of high salinity and a 100% fertilization level is used, the tolerance of the crops is reduced and the size of the fruit is negatively affected.
The experiment was conducted on a greenhouse California pepper crop, on a sand-mulched sandy loam soil and trickle irrigation.
Six different treatments were established, three rates of NPK applied by fertigation and two types of water (0.7 and 2.6 dS m-1). The amount of applied NPK in the different treatments is equivalent to 0, 50 and 100% of the total concentration extracted by the crop.
The pepper crop shows a positive response to an increase of NPK concentration in the nutrient solution; however when water of high salinity and a 100% fertilization level is used, the tolerance of the crops is reduced and the size of the fruit is negatively affected.
Publication
Authors
J.L. Contreras, P. Galindo, J.J. Catala, M.L. Segura
Keywords
Capsicum annuum, fertigation, sand-mulch, salinity, uptake, NPK
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