Combined Application of Organic and Inorganic Fertilizer on Maize (Zea mays L.) Production and Reduce N2O Emission
| Main Authors: | Terry Ayu Adriany, Yono, Ali Pramono |
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| Format: | Article |
| Terbitan: |
, 2019
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/3345280 |
Daftar Isi:
- ABSTRACT Maize is a cereal plant, it has economic value as a source of carbohydrates and protein after rice. Application of organic matter is expected to improve yield and reduced N2O emissions. The objective of this study was to determine the combination of organic and inorganic fertilizer in maize cultivation with high yields and low N2O emissions. The experiment was conducted at Indonesian Agricultural Environment Research Institute, Pati, Central Java on July 2016 - October 2017. The research used Randomized Block Design (RBD) with DK-77 variety, 6 treatments and 3 replications. Fertilization treatments: 1) farmyard manure + phonska + urea prill, 2) farmyard manure + phonska + urea coated biochar, 3) biocompost + phonska + urea prill, 4) biocompost + phonska + urea coated biochar, 5) sludge + phonska + urea prill, 6) sludge + phonska + urea coated biochar. Organic fertilizer rate: farmyard manure 3 ton/ha, biocompost 3 ton/ha (biochar : compost, 1 : 4) and sludge 3 ton/ha. Inorganic fertilizer rate: phonska 300 kg/ha, urea prill 200 kg/ha and urea coated biochar 200 kg/ha (urea : biochar, 4 : 1). Variables observed were yield components, daily flux N2O and plant height. Emitted gas was collected at every 2 and 4 days after fertilizing application and every 2 weeks simultaneously with plant height. N2O gas were analyzed by using gas chromatography equipped with electron capture detector (ECD). Results showed, there were no significant different between the combination of organic and inorganic fertilizer on yield and N2O emissions from maize cultivation.