The 10th Asian Crop Science Association Conference

Presentation information

Print

Oral sessions

Field Crop Production » O14: Legume Production in Asia

[O14] Legume Production in Asia

Fri. Sep 10, 2021 9:45 AM - 11:45 AM Room 1 (Oral) (Field Crop Production)

Chair: Kuniyuki Saito (Okayama University, Japan)
Chair: Tianfu Han (Chinese Academy of Agricultural Sciences, China)

10:55 AM - 11:10 AM

[O14-05] The Changes of Soil Properties and Crop Responses to Organic Amendments of Dryland Cambisol Soil by Different Cropping System

○Sabaruddin Zakaria1, Helmi Helmi2, Sukzal Teuku1, Sufardi Sufardi2, Zaitun Zaitun1, Abdul Ghafur1, Elly Kesumawati1, Khairul Basri2, Darusman Darusman2, T. Fadrial Karmil3 (1.Department of Agrotechnology, Agriculture Faculty, Syiah Kuala University, Indonesia, 2.Department of Soil Science, Agriculture Faculty, Syiah Kuala University, Indonesia, 3.Veterinary Faculty, Syiah Kuala University, Indonesia)

Dryland farmers in Aceh has low income because their soil is poor. For example the average yield of sweet corn in the region is around 8-10 ton cob ha-1. The opportunity exists to close the dryland yield gaps and consequently to increase farm income. A field evaluation of soil, maize and soybean responses to fertiliser and soil amendments was conducted in 2017 in the Pidie district, Aceh Province, Indonesia. The treatments applied were 10 t/ha each of rice husk biochar and cow manure with and without 400 kg/ha NPK fertilizer. Crops grown with 400 kg/ha NPK only was used as the control. Crops were grown as sweet-corn and soybean monoculture and mixed crop planting. Key soil parameters measured before and after one growing season include soil pH, soil organic C, N-total, soil available P and Exc. K. Except for soil available P at 45 days after planting, none of the soil properties responded to the application of either rice husk biochar or cow manure. Yield of sweet-corn under the control treatment was 23.2 ton cob ha-1 which demonstrated a large improvement the average region's yield. However, sweetcorn yield was not different between soil amendment and cropping system treatments at around 22-23 ton cob ha-1. They yield of soybean range from 1.4-1.7 ton by the application of either rice husk biochar or cow manure, increased about 40-70% compare to control treatment. As expected, yield of monoculture soybean (1.9 ton ha-1) was doubled that in the mixed system (0.99 ton ha-1).