Growth and yield performance of green corn (Zea mays Linn.) using different bio-organic fertilizers and pesticides
2013
Beato, L.L.
Organic farming through the current and more acceptable farming practice globally is not yet employed by the majority of the farmers, specifically in the Fourth district of Laguna [Philippines]. Thus, the use of organic inputs, as fertilizers and pesticides as applied to green corn (Zea Mays) was investigated in this study since this is a typical crop in the locality. A 2x4x6 factorial experiment following a split-split plot design with three replications was used in the study. Results showed that 571.43 kg Greenland/ha (chicken manure compost) + 180.96 kg urea/ha was comparable with the 192.86 kg (14-14-14)/ha + 140 kg Urea/ha (inorganic fertilizer treatment) and better than 1413.6 kg vermicompost/ha + 140 kg urea/ha in affecting the growth and yield performance of green corn plants, specifically with respect to plant height, number of days to 50 percent silking, number of corn ears per plant and length and diameter of unhusked corn ear. Furthermore, it was found out that the yield of unhusked corn ears per hectare for the 571.43 kg Greenland/ha was at 20.82 tons, while the yield of the 192.86 kg (14-14-14)/ha + 140 kg Urea/ha was only a bit better at 23.18 tons, noting that the Control here only yielded 16.81 tons per hectare. On the sources of pesticide, it was found that 1041.67 li/ha makabuhay crude extract to be comparable with the 1041.67 tbsp/ha Lannate on insect infestation and population specifically in insect infestation from whorling to silking, silking to maturity, number of larvae per plant, number of borers per stem. The makabuhay vine extract, was found to be even better than Lannate in controlling insect infestation on : number of nymphs per corn ear and number of nymphs per plant. The study recommends utilization of the fertilizer-combinations in other corn varieties, and further testing of makabuhay vine extract in different concentrations.
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