Evaluation of tea waste for Nitrogen, Phosphorous, Potassium (NPK) as Organic Fertilizer


P A Patil, Suhas Mane, Atul Wakse, Ravikumar Sawant

Dept. of Pharmaceutical Chemistry, Rajarambapu College of Pharmacy, Kasegaon.

*Corresponding Author E-mail: prithvirajpatil87@gmail.com, www.kespharmacy.com



In this research work we determined concentration of NPK nutrients in tea waste. The main objective of work was determining cost effective and potential alternative to chemical fertilizers. The study concluded with high concentration of NPK nutrients in the waste material like tea waste. The information will be very valuable for agriculture industry.


KEYWORDS: Organicfertilizers, teawaste.




Fertilizers add nutrients to the soil to endorse soil fertility and boost plant growth.[4] Today fertilizer plays very vital role in modern agriculture to improve crop yield.[2] With advancement in agriculture use of chemical fertilizer increased several folds especially in developing countries like India.[1] The overuse of chemical fertilizers recently generated some serious issues in the field of agriculture like hardening of soil, decreased fertility, strengthened pesticides, polluted air and water, and released greenhouse gases, thereby bringing hazards to human health and environment as well.[3] In the crops traces of chemical fertilizers creating serious issues for health.[1] In order avoid these problems use organic fertilizers playing key role as these are environment friendly, economical, non hazardous.[2]





In this research our aim is to evaluate concentration of nitrogen, phosphorous and potassium in tea waste.[4] Tea waste which thrown after use can be used as effective organic fertilizer.[3] The main objective Is to find effective, economical alternative fertilizer to chemical fertilizer.[1]



Tea waste is collected from local tea stalls. Tea waste washed with distilled water to remove impurities, then sundried for 4 hours. The dried powder then dissolved in distilled water in the ratio 2:10. The solution was diluted in the ratio 14:1 with distilled water. The soil testing kit was purchased from Agrinex corporation Luck now India. The contains different vials and capsules separately for Nitrogen, Phosphorous and potassium. The Capsule is filled with different chemical particular for each nutrient. The capsule was opened and content was added to vial. Then diluted solution was added to each vial. The color change due to reaction was observed and compared with standard color monograph given on the kit. There were 4 parameters was observed on the monograph of kit high, medium, low and trace depending upon color of testing vial. The results were obtained by comparison with standard.


3.1. Estimation of total potassium

From figure 1 it can observed that diluted solution contains high amount of potassium.



Figure .1 Evaluation of Potassium by comparing with standard color.


3.2. Estimation of Nitrogen:

From figure.2 it is clearly seen that diluted solution contains high concentration of Nitrogen.



Figure 2 Estimation of Nitrogen


3.3 Estimation of Phosphorous:


3.4. Estimation of pH

The pH of diluted tea waste solution was observed about 5.5



Figure.4 Estimation of pH



From our research work and above results it can be concluded that tea waste contains very high concentration of N, P K. It has huge potential to be used as fertilizer by taking cost benefits. also it is obtained from organic source hence it has no hazardous effects on soil in comparison to chemical fertilizers.



1.     An assessment of the use of mineral and organic fertilizers by smallholder farmers in Vhembe district, Limpopo province, South Africa Jude J.O Odhiambo 1 * and Vidah N. Magandini. African Journal of Agricultural Research Vol. 3 (5), pp. 357-362,

2.     Production and Characterization of Bio-Organic Fertilizer from Agricultural Wastes Matias A. Bentor Jr., Vivencio A. Pelesco, Randy A. Villarin, International Journal of Agriculture Innovations and Research Volume 5, Issue 3, ISSN (Online) 2319-1473

3.     The effect of organic fertilizers on growth and yield of broccoli (Brassica oleracea L. var. italica Plenck cv. Top Green), Jigme1 *, Nipon Jayamangkala1, Pathipan Sutigoolabud2, Jirapon Inthasan2 and Siriwat Sakhonwasee1Journal of Organic Systems, 10(1), 2015.

4.     Different sources of organic fertilizer in the cultivation of coriander, Bezerra C.V.C.1, Silva, V.F.2*, Soares C.V.3, Nascimento E.C.S.4 and Andrade L.O.3, Academia Journal of Scientific Research 5(7): 157-160, July 2017






Received on 24.05.2018                Modified on 09.10.2018

Accepted on 20.10.2018            © A&V Publications All right reserved

Asian J. Res. Pharm. Sci. 2018; 8(4):217-218.

DOI: 10.5958/2231-5659.2018.00036.X