Pengaruh Formula Pembenah Tanah Organomineral Terhadap Sifat Kimia Tanah Dan Pertumbuhan Tanaman Jagung Pada Lahan Kering Masam

Abstract

Utilization of acid upland for food crop farming faces many constraints, related to physical, chemical and biological soil properties. Research on the effect of organomineral soil amendment on soil chemical properties and growth of maize was carried out at the Experimental Station of the Center for Agricultural Mechanization Research and Development Serpong, Tangerang. The objective of the study was to examine the ef fec t of organomineral (OM) soil amendment on the improvement of soil chemical properties and plant growth of hybrid maize P-21. The study used a randomized block design, consisted of eight treatments with three replications. The treatments were control (without fertilizer and ameliorant), standard rate of NPK, five levels of OM soil amendment (500; 1,000; 1,500; 2,000; and 2,500 kg/ha) and dolomite 1,500 kg/ha. Soil treatment of 2,000 kg/ha OM significantly increased soil pH and reduced the exchangeable aluminium, comparable to those from the treatment of 1,500 kg/ha dolomite. Soil treatment of 1,500 kg/ha dolomite showed the best effect on improving soil pH and exchangeable Al. The improvement of soil chemical properties due to OM treatment were followed by better plant growth when compared to that of NPK treatment only, as was commonly practiced by farmers. OM soil amendment significantly increased plant growth and increased shelled maize yield. The increase of shelled maize yield by 15.7% was obtained from soil applied with 2,000 kg/ha OM. Base on the response curve of shelled maize data the maximum growth and yield of maize could be obtained by applying OM soil amendment at rate of 1,750 kg/ha.

The Effectiveness of Organic Fertilizer Granules for Increasing Sweet Corn Production on Acid Dryland In Bogor District

“…This was due to an increase in pH in increasing the availability of P nutrients that were released from P that was fixed due to GOF so as to encourage increased corn growth. In accordance with the research of Anetor, et al (2014) in Subiksa and Husnain (2019) that organomineral fertilizers (PO) are effective in releasing P nutrients to increase corn growth on acid soils because fertilizers containing bases can be exchanged and are able to encourage an increase in pH. In addition, it can improve land quality and increase soil microbial activity.…”

“…Furthermore, organomineral soil enhancers (OM) were effective in increasing soil pH and decreasing Al solubility and increasing dry shelled corn yields to 15.7%. Regarding this matter, OM soil repairer can be used as an alternative to lime (Subiksa and Husnain, 2019). The K nutrient is in the adsorption complex with Al and antagonism occurs which cancel each other out (Kasno, 2019).…”

“…Granular organic soil improver based on chicken manure plus and cow manure plus has almost the same effectiveness as lime in increasing the growth and yield of mung bean plants, so these two ameliorant formulas can be recommended as a substitute for lime in acid dry land (Subiksa, 2019). This study aims to determine the effect of granulated organomineral fertilizers on the chemical properties of dry soil acid soils that are poor in N and the effectiveness of increasing sweet corn production in acid dry lands.…”

Provision of Chicken Manure and Urea Fertilizer on the Chemical Characteristics of Ultisol Soil in Bilah Barat District

“…In Ultisol soil it is necessary to provide organic matter so that this soil can be used for plant cultivation and maintain nutrient balance through fertilization (Fadhlina et al, 2017). In general, the management carried out is the use of high inorganic fertilizers, but it is not balanced with the provision of organic matter (Subiksa, 2018).…”

Provision of Urea Fertilizer and Chicken Manure on Chemical Characteristics of Inceptisol Soil in Pangkatan District

“…In Inceptisol soil it is necessary to provide organic matter so that this soil can be used for plant cultivation and maintain nutrient balance through fertilization (Fadhlina et al, 2017). In general, the management carried out is the use of high inorganic fertilizers, but it is not balanced with the provision of organic matter (Subiksa, 2018).…”