The Effect of Bioplastic Mixed in Organic Fertilizer on Corn Growth and Soil Properties

摘要

The effect of bioplastic mixed in organic fertilizer on corn growth and soil properties was studied in pot experiment. The bioplastics were mixed in organic fertilizer and tested in corn compared with different types and rates of fertilizer application e.g., control, compost of cattle manure rate 1562.5, 3125, 6250 Kg/ha, compost of cattle manure mixed with polyethylene 15 μm thickness, compost of cattle manure mixed with bioplastic 15 and 25 μm thickness rate 1562.5, 3125, 6250 Kg/ha. Thirteen treatments were designed in Randomized complete block design with 4 replications at greenhouse of Thailand Institute of Scientific and Technological Research. The results were found significantly different on fresh and dry weight of stalk. The composted of bioplastic 25 μm with cattle manure at the rate of 3,125 Kg/ha was maximum weight of stalk then was composted of bioplastic 15 μm thickness with cattle manure at the rate of 1,000 Kg/rai and cattle manure compost at the rate of 3,125 Kg/ha respectively. Yield of corn was not different between treatments but the highest dry weight of seed was used composted of bioplastic 25 μm thickness with cattle manure at the rate of 3,125 Kg/ha then was composted of bioplastic 15 μm thickness with cattle manure at the rate of 3,125 Kg/ha and cattle manure compost at the rate of 3,125 Kg/ha respectively. The bioplastic mixed in cattle manure compost could reduce soil acidity and electrical conductivity but did not affect on plant nutrients.