UTILIZATION OF SOME AMELIORANTS FOR INCREASING THE SUITABILITY CLASS OF PEAT LAND IN THE DEVELOPMENTOF MAIZE IN RASAU JAYA III PONTIANAK

• Main Author: , Denah Suswati
• Format: Article NonPeerReviewed
• Published: [Yogyakarta] : Program Pascasarjana Fak. Pertanian Universitas G 2012
• Online Access: https://repository.ugm.ac.id/95269/; http://repository.ugm.ac.id/digitasi/index.php?module=cari_hasil_full&idbuku=3087
• Institution: Universitas Gadjah Mada

<p>The purposes of this research are to find out the characteristics of peat land and to establish the actual suitability of the land which then be upgraded to the potentially suitable land to support the development of corn plants on the research location by utilization of ameliorant materials of coastal sediment and salted fish waste.<br /> A series of research were conducted in the laboratory, greenhouse and in the field. The field research was conducted in peat land of the Rasau Jaya III area Kubu Raya Regency to investigate the characteristics of the land and to evaluate the actual land suitability class, in order to be upgraded to the potentially suitable land for the development of corn on research site. <br /> The pot experiment in greenhouse was conducted in the Faculty of Agriculture, Tanjungpura University Pontianak 1) to establish the doses of coastal sediment and the salted fish waste for each SPT (soil mapping unit) based on the limiting factors of pH, DHL, ESP , and 2 ) to knows the influence of coastal sediment and salted fish waste ameliorant treatment on the availability of macro-nutrients and the yield of corn on each SPT. The field research was aimed to know the combined effect of both costal sediment and salted fish waste treatments obtained from the pot experiment to the absorption of macro nutrients and the yield of corn in each SPT of peat lands. The laboratory research was carried out to analyze the parameters of the research results.<br /> The research results show that there are three soil mapping units (SPT) in the research site which can be upgraded for its actual land suitability to be the potentially better land suitability for corn development, that are the level of hemic maturity (SPT 1) and sapric maturity (SPT 3 and SPT 4 ). The combination doses of coastal sediment and salted fish waste based on the limiting factors of pH, DHL and ESP best suited to the growth of corn plant is the use of coastal sediment up to 60 tons ha-1 and salted fish waste up to 2 tons ha-1.<br /> Research results in pot expriment show that the combination of coastal sediment of 40 tons ha-1 and salted fish waste of 1.5 tons ha-1 can increase soil pH, macro nutrients availability and the weight of dry kernel corn compared to the control treatment. Research results in the field show that the treatment of a combination of ameliorant (the coastal sediment of 40 tons ha-1 and salted fish waste of 1.5 tons ha-1) and SPT can increase the soil pH, bulk dencity, ash levels, DHL, macro nutrient absorption and the yield of corn per hectare up to 200% to 500% times compared to the control treatment.</p>