Vol. 6, Issue 3 (2018)
Nitrogen release pattern from fertilizer pellet pack placed in soil
Author(s): Raja Rajeshwaran, TH Sa and K Arulmozhiselvan
Abstract: Fertilizer Pellet Pack (FPP) is a design having fertilizer pellet encapsulated in a polymer coated paper pouch. In order to supply N to sugarcane, the slow release characteristics of different forms of FPP, having single and double layer of poly coat paper, were studied up to 10 months at fortnightly intervals of sampling. The treatments consisted 3 methods of composing FPP. In each FPP, fertilizer NPK nutrients were placed as urea, muriate of potash and P sources as DAP or SSP or both DAP + SSP. The FPP having 3450 mg of N was placed and incubated in 200 g of moist field soil. The results showed that the slow release of ammonium N resulted in FPP having NPK with P as either SSP or SSP + DAP in double layer. The release rate of ammonium N was slower (<0.6 %) during initial period of 90 days. The release of nitrate tremendously increased from the start day (12 mg) to a high value at 300 DOI (491 mg). Single layer FPP released significantly higher nitrate than single + double layer pack. Available N estimated in soil was the highest (1606 mg) in FPP having NPK with DAP as P source. Slow availability of N was noticed in FPP having single + double layer pellets (769 mg) with NPK containing P as SSP.
Pages: 3012-3017 | 450 Views 117 Downloads
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How to cite this article:
Raja Rajeshwaran, TH Sa, K Arulmozhiselvan. Nitrogen release pattern from fertilizer pellet pack placed in soil. Int J Chem Stud 2018;6(3):3012-3017.
