Influence of Fertility Level on the Protein Content and Agronomic Characters of Pigeonpeas in an Oxisol

Abstract

The effect of different levels of N, P, and K with and without Ca, Mg and two levels of calcium silicate, was studied on Kaki pigeonpea in an Oxisol at the Isabela Experiment Substation. The study confirmed previous results showing that fertilizer treatments have no effect on green pod yield, date of flowering, plant height, seed weight or protein content of the dry seed.

The Pigeon Pea (Cajanus cajan Millsp.), A High-protein, Tropical Bush Legume1

“…A large pro portion of the canned output is ex ported to New York and Chicago to meet the demand of transplanted Puerto Ricans in those cities (77). The 1970 farm value of the pigeon pea in Puerto Rico was over $3 million (71). There is a keen demand for large fresh green pigeon peas at Christmastime.…”

“…Completely diseased branches fail to flower. On partly diseased branches, the flowers do not set normal fruits (71). Maramorosch and coworkers confirmed whiteflies as the carriers of yellow mosaic (Rhynchosia mosaic) in Puerto Rico but could not identify the "virus" microorganism and suggest it may be an as yet unknown viroid (59).…”