Abstract
The main key in choosing manure is the level of ripeness, the ratio of Carbon and Nitrogen (C/N) and the Nitrogen, Phosphorus, Potassium (NPPt) contents. So far, the farmers have not effectively utilized organic materials as fertilizers in agricultural lands. Organic materials which can be used include agricultural waste and animal waste. The existence of alternative fertilizers and in order to support the development of sustainable agriculture, utilizing agricultural waste as the materials to make organic fertilizers is encouraged. Organic fertilizers can be in the forms of manure, compost, and the combination of both. The research was aimed to study the NPPt content in compost from cocoa rind and cow waste. This research was done in May – September 2015 in Sub-district Luwuk, District Banggai and in the Laboratory of Chemistry and Soil Fertility, Department of Soil Science Faculty of Agriculture, Hasanuddin University, Makassar. The experiment was conducted in a Completely Randomized Design (CRD). The experiment contained one factor with three treatments, which were repeated 3 times; thus, there were 9 treatments units. The treatments were comparison dosages of cocoa rind and cow waste, i.e. P1 = 50 kg of cocoa rind : 10 kg of cow waste; P2 = 50 kg of cocoa rind : 20 kg cow of waste; P3 = 50 kg of cocoa rind : 30 kg of cow waste. Data were analysed by comparing the average of NPPt element in cocoa rind compost and cow waste. Data was then analyzed statistically by One Way Anova (One Way Variant Analysis) by using SPSS 19.0 for Windows and further analyzed by Least Significant Difference (LSD) 1% by using Microsoft Excel Windows 7. The results showed that the highest macro nutrients content was in P2 with N = 0.25%; P = 3.91%; K = 5.23% and the lowest was in P3 with N = 0.19% and P = 3.33% as well as in P1 with K = 4.16%.Keywords: Agricultural waste, compost, cow waste [How to Cite: Ramadhani C and W Ramlan. 2016. Utilizing Cocoa Rind as Organic Fertilizer to Support Sustainable Agriculture. J Trop Soils 21: 33-39. Doi: 10.5400/jts.2016.21.1.33]
Highlights
Rice is the staple food and having a strategic value in the national food security
This paper aimed to study the balance of N, P and K nutrients on the integrated nutrient management technology for high yield potential rice variety in the rice field dominated by 1:1 clay mineral type
The content of Ca and Mg were low, and the soil CEC was low. This was probably caused by weathering and fast nutrients leaching in the soil dominated 1:1 clay mineral type
Summary
Rice is the staple food and having a strategic value in the national food security. According to Adiningsih (1992) in the 1988-1991 period, the intensive cultivated land for rice was already experiencing symptoms of levelling off productivity.While in the 2000-2005 period, the average of rice production increased 0.47%. Rice is the staple food and having a strategic value in the national food security. According to Adiningsih (1992) in the 1988-1991 period, the intensive cultivated land for rice was already experiencing symptoms of levelling off productivity. While in the 2000-2005 period, the average of rice production increased 0.47%. The productivity of paddy in 2005 was 4.22 Mg ha-1. The productivity remains low, far below the potential productivity in the year. The low rice productivity was caused by the imbalancy of nutrients additions. Nutrient imbalancy in soil can be caused by the excessive use
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