Investigations of two wetland paddy varieties supplied with different fertilizer rates planted on ultisol and entisol soils

Lisa Sabrina Ambrose, (2005) Investigations of two wetland paddy varieties supplied with different fertilizer rates planted on ultisol and entisol soils. Universiti Malaysia Sabah. (Unpublished)

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Abstract

In a glasshouse pot experiment, the response of two paddy varieties were studied on Tuaran ( Entisol ) and Papar ( Ultisol ) soil at five different N fertilisation rates. The response of these two popular varieties amongst local farmer which, is currently subsidised by the government was measured in terms of N percentage in plant, ROB value and dry weight as well as the interaction of applied FR with the former variables. Two replicates per variety gave a total number of forty - eight (48) pots. Nitrogen was applied at 0, 50, 100, 150, 200 and 300 kg ha-1 at three split applications; before tillering, tillering and stem elongation stage. This experiment was desired to obtain optimum and maximum fertilisation rate and also to determine the suitability of a variety grown on every soil. Its' purpose is also to investigate the relationship between plant greenness (ROB) against fertilisation rate. Maximum fertilisation rate was recorded at 159.5 kg ha-I for MR159PR and 220.7 kg ha-1 for MR159 on Tuaran soil. Optimal fertilisation rate is suggested at 124.45 kg ha-1 for MR159_PR and MR159_TN at 78.16 kg ha-1 . Result also showed that ROB increases with fertilisation rate until 200 kg ha-1 . Only variety MR159 responded significantly in this experiment, suggesting that it is suitable to be grown on both soil type.

Item Type: Academic Exercise
Uncontrolled Keywords: entisol, ultisol, fertilisation, paddy, soil
Subjects: S Agriculture > SB Plant culture
Divisions: SCHOOL > School of Science and Technology
Depositing User: MDM SITI AZIZAH IDRIS
Date Deposited: 11 Jun 2013 06:13
Last Modified: 16 Oct 2017 06:30
URI: http://eprints.ums.edu.my/id/eprint/6240

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