Utilization of Padina sp. as fertilizer for pechay (Brassica chinensis L.)
Sumile, E.B., Davao Oriental State Coll. of Science and Technology, Mati, Davao Oriental (Philippines) Montenegro, J.J.Z.
The study of the utilization of Padina sp. as fertilizer of pechay (Brassica chinensis L.) was conducted from October to November 2005 at Purok Molina, San Ignacio, Manay, Davao Oriental. This study was conducted to determine the effects of Padina sp. crude extracts in relation to concentrations and time of application for pechay production. Data on the number of leaves, leaf size, plant height, fresh weight and biomass were being collected. Ten plants per treatment per replication were being measured as experimental test plants. The experiments were laid in a randomized complete block design and data were analyzed in a factorial analysis of variance. Differences among means were determined and compared using Duncan's New Multiple Range Test at 1 percent and 5 percent level of significance. The crude extracts of Padina sp. significantly influenced the growth and development of pechay. The growth and the development of the plant was highly affected by the concentrations and the time of applications and even frequency. Mortality and phytotoxicity effects of the different treatment combinations were not exhibited by the plants in the plots. The 3.0 g/ml of the crude extract of Padina gave the highest number of leaves, tallest plant, biggest weight in fresh basis and biomass. While 2.0 g/ml significantly gave the bigger leaf size of pechay compared with those in the other treatment . Time of application of 1.0 g/ml, 2.0 g/ml and 3.
0g/ml applied once in the third week and those that are applied twice (once in the first and in the third week) highly influenced the growth and development of pechay.
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