the Effects of Plant Type, Spacing and Fertilizer Application on the Agronomic Performance of Transplanted Rice

Date

3-1977

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Basilio B. Mabbayad

Abstract

The agronomic performance of two new improved rice varieties was evaluated under two levels of N application and spacings.

IR 36, a very early maturing rice variety outyielded C 168 a medium early maturing rice variety.

Plants spaced at 40cm x 5cm using one seedling per hill with rows oriented east-west, produced significantly higher yield, more panicles per square of land area but lower leaf area index at flowering than those spaced at 20cm x 20cm using two seedlings per hill.

The levels of nitrogen applied, i. e., 40 kg N/ha for low N rate and 80 kg N/ha for high N rate, did not affect significantly the yield, harvest index percentage of unfilled grains. However, higher rate of nitrogen promoted higher LAI values of both varieties. The LAI value of both varieties were significantly affected by variety x spacing interaction.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1977 A42 Q55

Document Type

Thesis

This document is currently not available here.

Share

COinS