The effect of level and time of fertilizer application on the performance of for corn cultivars for baby corn production

Date

4-1995

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Manuel L. Logroño

Abstract

A study was conducted at the Institute of Plant Breeding at UPLB from May to August 1994 to evaluate the young cob yield and other agronomic characteristics of IPB 929, IPB Var I,CPX 39.5 and IPB 3375 when grown at different levels and time of application of nitrogen fertilizer.

Split-split plot design with three replications was used. Four varieties represented the mainplot, three levels of nitrogen as subplot and three timings of nitrogen application as sub sub-plot.

Significant variation were found among the four varieties for all characters measured except weight of non-marketable cobs.

Increasing the level of nitrogen up to 180kg per ha, markedly increased plant height, ear height, diameter and length of young cob corn, weight of marketable cobs, total weight, yield per hectare of marketable cobs and total weight; and hastened the silking and harvesting dates of young cobs.

Early application of nitrogen at about 20 DAP, increased plant height, ear height, diameter and length of young cob corn, and number of cobs per plant while late application hastened silking and harvesting dates.

Variety by level interaction was significant for plant and ear heights, number of days silking and harvesting. Variety by time interaction significantly influenced number of days to silking and harvesting, weight of marketable cobs, total weight and yield per hectare (based on the weights of marketable cobs) and total weight. Level by time interaction was significant for the cob diameter, number of days to silking, and number of days to harvesting.

IPB 929 showed the highest marketable yield (0.825 ton/ha) when fertilized with 180 kg N/ha at 40 DAP.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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