The effect of nitrogen fertilization and spacing on cowpea
Date
4-1968
Degree
Bachelor of Science in Agriculture
Major Course
Major in Agronomy
College
College of Agriculture and Food Science (CAFS)
Adviser/Committee Chair
Jose R. Deanon Jr.
Co-adviser
Jose M. Soriano
Abstract
Two experiments were undertaken to evaluate the yield response of cowpea to various plant population and nitrogen levels under Los Baños conditions.
Nitrogen fertilization was found to be effective in improving the fresh pod as well as the dry seed yields of the Alabama Crowder variety of cowpea. It was apparent, however, that applying more than 50 kilograms nitrogen per hectare did not give a proportional increase in yield.
The widest hill spacing of 20 centimeters in the row gave vigorous, big and more productive plants than the closer spacing. The expected high total yield from planting closer (higher population) was not realized in this experiment so that the wider spacing can be said to be a more economical rate.
The differences in the plant responses to the treatments between the two planting seasons was attributed to the relative amounts of rainfall, sunlight and the prevalence of insect pests, diseases and weeds.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
LG 993.5 1968 A42 T59
Recommended Citation
Tizon, Teofilo S., "The effect of nitrogen fertilization and spacing on cowpea" (1968). Undergraduate Theses. 8710.
https://www.ukdr.uplb.edu.ph/etd-undergrad/8710
Document Type
Thesis