The present research work was carried out in the "Agualima" farm owned by Agualima S.A.C, located in Panamericana Norte km 514, Virú District, Virú Province, Libertad Department. Geographically the fundo is located at -8.44885823 south latitude and -78.727039 west longitude of the Greenwich meridian. The experiment was carried out in fields of asparagus (Asparagus Officinalis L.) already established, under the drip irrigation system. The cultivar used was UC 115 F1; with an age 2.5 years (4th season), the density used was 25000 plants / Ha with distance between rows 2.4 m and between plants of 0.40 m in double row. The soils presented a sandy texture, with neutral reaction, very low content of organic matter, high content of phosphorus, low potassium content and low electrical conductivity. The temperatures during the experiment fluctuated between 18 ° C and 19 ° C. The average tempe...