Respuesta del Cuba OM-22 (Pennisetum purpureum), según abono orgánico, en suelos de Lambayeque

Abstract

En una plantación de pasto Cuba OM-22, instalada en la costa norte4 del país, Lambayeque, cona edad de 120 días aproximadamente, luego de su primer corte, se regó y aplicó los siguientes tratamientos: T1: Sin abonamiento (Testigo), T2: Abonamiento con 3.0 tm/ha de “establo”, T3: Abonamiento con 3.0 tm/ha de “gallinaza” y T4: Abonamiento con 1.5 tm/ha de “guano de islas” , bajo un diseño completamente al azar, se cortó a los 90 días y evaluó en sus atributos agronómicos, rendimientos de materia verde y materia seca, contenido de proteína cruda, fibra cruda, extracto etéreo y cenizas. En ese orden de tratamientos se hallaron alturas de planta de 1.529, 1.628, 1.945 y 2.016 m; largo y ancho de hoja de 1.075 con 2.32, 1.193 con 2.87, 1.140 con 3.47 y 1006 m con 3.19 cm; hojas/tallo de 10.30, 9.20, 12.30 y 12.00; relación hoja (con respecto al tallo) de 59.81, 54.81, 60.08 y 55.23%, grosor de tallo de 11.42, 16.0, 13 y 16.9 mm. Los rendimientos de materia verde y materia seca fueron de 50.00 con 18.75, 80.333 con 28.708, 109.667 con 35.642 y 125.333 con 40.733 tm/ha/corte; proteína cruda, fibra cruda, extracto etéreo y cenizas de 22.20, 38.68, 4.75 y 13.7%; 19.37, 34.94, 5.57y 12.43%; 19.11, 35.80, 5.67 y 12.09%; 18.70, 35.35, 5.65 y 12.91%, respectivamente.

In a Cuba OM-22 grass plantation, located on the northern coast of Lambayeque, approximately 120 days old, after its first cut, the following treatments were irrigated and applied: T1: Without fertilization (control), T2: Fertilization with 3.0 mt/ha of "stable", T3: Fertilization with 3.0 mt/ha of "chicken manure", and T4: Fertilization with 1.5 mt/ha of "island guano". Under a completely randomized design, the plantation was cut after 90 days and evaluated for agronomic attributes, green matter and dry matter yields, crude protein, crude fiber, ether extract, and ash content. In this order of treatments, plant heights of 1,529, 1,628, 1,945, and 2,016 m were found; leaf length and width of 1.075 with 2.32, 1.193 with 2.87, 1.140 with 3.47 and 1006 m with 3.19 cm; leaves/stem of 10.30, 9.20, 12.30 and 12.00; leaf ratio (with respect to the stem) of 59.81, 54.81, 60.08 and 55.23%, stem thickness of 11.42, 16.0, 13 and 16.9 mm. The green matter and dry matter yields were 50.00 with 18.75, 80.333 with 28.708, 109.667 with 35.642 and 125.333 with 40.733 tm/ha/cutting; Crude protein, crude fiber, ether extract, and ash content were 22.20, 38.68, 4.75, and 13.7%; 19.37, 34.94, 5.57, and 12.43%; 19.11, 35.80, 5.67, and 12.09%; and 18.70, 35.35, 5.65, and 12.91%, respectively.