Advances in Agriculture

Advances in Agriculture / 2015 / Article

Research Article | Open Access

Volume 2015 |Article ID 620368 |

Savita Jandaik, Preeti Thakur, Vikas Kumar, "Efficacy of Cow Urine as Plant Growth Enhancer and Antifungal Agent", Advances in Agriculture, vol. 2015, Article ID 620368, 7 pages, 2015.

Efficacy of Cow Urine as Plant Growth Enhancer and Antifungal Agent

Academic Editor: Tibor Janda
Received07 Jul 2015
Revised07 Oct 2015
Accepted08 Oct 2015
Published05 Nov 2015


The present study was conducted to determine antifungal activity of three different concentrations (5, 10, and 15%) of cow urine against three fungal pathogens (Fusarium oxysporum, Rhizoctonia solani, and Sclerotium rolfsii) isolated from infected plants of Methi and Bhindi that showed symptoms of damping off and wilting disease by poison food technique. The extent of growth of test fungi in plates poisoned with cow urine was lesser when compared with the control plates. Among these concentrations cow urine at 15% concentration was most effective. When the three fungal organisms were compared, maximum growth suppression was observed in Fusarium oxysporum (78.57%) at 15% concentration of cow urine followed by Rhizoctonia solani (78.37%) and Sclerotium rolfsii (73.84%). Finally we concluded that the cow urine has antifungal activities and the inhibitory activity can be used in the control of fungi. The nutritional effect of cow urine on plant growth was also tested with Trigonella foenum-graecum (Methi) and Abelmoschus esculentus (Bhindi) plants and the chlorophyll and protein content was also estimated.

1. Introduction

Vegetable plants suffer from diseases caused by various kinds of pathogens such as bacteria, fungi, viruses, nematodes, and mycoplasma. Among these, fungi are considered as most aggressive pathogens causing qualitative and quantitative damage. Fungal pathogens, namely, Fusarium oxysporum, Rhizoctonia solani, and Sclerotium rolfsii, are associated with damping off and wilting of Methi and Bhindi (Okra). The plant diseases have significant role in agriculture in terms of reduction of yield and economy. One of the most widely used strategies to control plant diseases is the use of chemical agents. However, overuse and abuse of these chemical agents resulted in certain hazardous effects. These chemicals suffer from drawbacks such as high cost, toxicity to nontarget organisms, residual problem, and development of resistance in pathogens. This situation triggered interest in searching alternates for disease control. Natural products, in particular from plants, can be the potential candidates which can be used against phytopathogenic fungi. The use of these agents is risk-free when compared to synthetic chemicals. In ancient Ayurveda cow urine has been greatly mentioned for its pharmacological importance. Okra contains nutrients that may confer a number of health advantages, including a decreased risk of several serious medical problems. Methi is one of the oldest medicinal herbs; ongoing research in India and abroad is currently uncovering new possibilities for its potential role in the treatment of diabetes and high cholesterol levels associated with coronary heart disease, both of which plague many industrial societies [1]. Cow urine is one of the ingredients of “Panchagavya” (urine, dung, milk, curd, and ghee) which is capable of treating many diseases as it has several medicinal properties [2] and it is the best remedy to cure fungal and bacterial diseases. It has an excellent germicidal power, antibiotics and antimicrobial activity. Therefore, cow urine can kill varieties of germs and it also boosts immunity [3]. Cow urine contains many beneficial elements, that is, chemical properties, potentialities, and constituents which help in removing all the ill effects and imbalances of body caused by infectious agents. Cow urine contains 95% water, 2.5% urea, and the remaining 2.5% a mixture of salts, hormones, enzymes, and minerals [4]. It has been considered that cow urine is very useful in agricultural operations as a biofertilizer and biopesticide [5] as it can kill number of pesticide and herbicide resistant bacteria, viruses, and fungi. Cow urine in combination with plant extracts is used to prepare disinfectant which is biodegradable and ecofriendly with good antibacterial action [6]. Majority of people in India use cow urine to get rid of various diseases due to its therapeutic values. Cow urine has several biological activities such as antioxidant, antidiabetic, antitumor, antiprotozoal, and molluscicidal [79].

2. Materials and Methods

2.1. Collection of Cow Urine

Fresh cow urine was collected in a sterile container from a local variety of cow. The urine was filtered through Whatman No. 1 filter paper to get rid of debris and precipitated material and was stored in airtight container at 4°C before use.

2.1.1. Isolation of Fungal Pathogens

Fusarium oxysporum, Rhizoctonia solani, and Sclerotium rolfsii were isolated from infected plants of Methi and Bhindi (Okra) that showed symptoms of damping off and wilting.

2.2. Antifungal Activity

The three concentrations (5%, 10%, and 15% v/v) of cow urine were prepared. 10 mL of different concentrations of cow urine was amended in 10 mL of potato dextrose agar medium and mixed thoroughly by stirring. Control was maintained in which distilled water was used instead of cow urine. The medium was autoclaved and poured into sterilized Petri plates and left. The fungal discs of 5 mm diameter were taken from actively growing cultures by using cork borer and the discs were transferred aseptically on PDA plates poisoned with cow urine. Plates were incubated at 28 ± 2°C temperature in incubator for 7 days. After 7 days plates were observed and colony diameters were measured with the help of ruler [10]. The percent of inhibition was calculated using the following formula given by [11]: where is inhibition percentage, is colony diameter in control plates, and is colony diameter in poisoned plates.

2.3. Effect of Cow Urine on Plant Growth
2.3.1. Collection of Seeds

The seeds of Trigonella foenum-graecum (Methi) and Abelmoschus esculentus (Bhindi) were purchased from the local market of Solan, Himachal Pradesh.

2.3.2. Pot Culture Experiment

The pot culture study was conducted to find out the effect of various concentrations of cow urine on growth of Methi and Bhindi plants. The seeds were soaked in water over night and then 5 seeds were sown in different pots filled with sterile garden soil. The garden soil was sterilized in an autoclave at 15 lbs pressure for half an hour. The pH of the soil was adjusted to 7. Each pot was irrigated twice a day with different concentrations (1%, 2%, 3%, 4%, and 5% (v/v)) of cow urine. In control pots, the seeds were irrigated with tap water instead of cow urine. When the plants grew randomly 3 seedlings from each treatment were uprooted without disturbing the root system and different parameters such as plant height, shoot and root length, number of leaves and branches, and leaf length and breadth were measured after 25 days to observe the plant growth.

2.3.3. Estimation of Protein

10 mg of coomassie brilliant blue G250 was mixed with 10 mL of 88% phosphoric acid and 45 mL of absolute alcohol. Then the mixture was diluted to 100 mL with distilled water. 1 gm of fresh germinated seedlings (test seedlings) was ground in 20 mL of distilled water. It was filtered and filtrate was made up to 20 mL. Then 0.1 mL of filtrated solution was added with 0.9 mL of water to which 2 mL of coomassie blue was added. The absorbance was read at 595 nm. Same procedure was repeated for the seedlings that were treated with water as control [12].

2.3.4. Estimation of Carbohydrate

2 gm of anthrone was diluted in one liter of sulphuric acid and stored in dark bottle and labeled as anthrone reagent. 5 gm of plant sample was collected from control plant and test plants separately and ground in 2 mL of 80% acetone. The homogenized solution was filtered. 1 mL of filtered solution was added with 5 mL of anthrone reagent. The solution was heated in water bath for 5 minutes. The OD was taken for the above mentioned sample(s) at 600 nm. Standard of glucose was prepared by dissolving 100 mg of glucose in 100 mL water [13]. The concentration of carbohydrate was calculated using the formula:

2.3.5. Estimation of Chlorophyll

Fresh leaves were collected from control plant and test plant separately and 1 gm of leaves was weighed. The leaves were cut into small pieces and homogenized in a mortar and pestle with excess of acetone and then filtered using Whatman No. 1 filter paper. The filtrate was collected and made up to 100 mL with acetone. 5 mL of extract was transferred into 50 mL volumetric flask and diluted to 50 mL with 80% acetone. Absorbance was read at 645 nm and 663 nm using spectrophotometer [14]. The quantity of chlorophyll a, chlorophyll b, and total chlorophyll was calculated using the following formula: where is optical density, is final volume of 80% acetone (mL), and is dry weight of sample taken (g).

2.4. Statistical Analysis

The experiment was performed in triplicate. The results were represented as mean ± standard deviation (SD) to facilitate the comparison of the data.

3. Results

In the present studies three fungal pathogens, namely, Fusarium oxysporium var. trifoli, Rhizoctonia solani Kuhn (Corticium Vagum B. & C.), and Sclerotium rolfsii Sacc. were isolated from the diseased Trigonella foenum-graecum (Methi) and Abelmoschus esculentus (Bhindi) plants. Data presented in Table 1 depicts that all concentrations (5, 10, and 15%) of cow urine were effective against the growth of the fungus which exhibited the significant inhibition in the growth of fungal plant pathogens. With increase in concentration of cow urine there was corresponding increase in the inhibition of vegetative growth of the fungal pathogens. The diameter of the fungal colonies in poisoned plates was lesser when compared to control plates and it indicates the antifungal effect of cow urine. Maximum inhibition was shown against Fusarium oxysporum (78.57%) followed by Rhizoctonia solani (78.37%) and Sclerotium rolfsii (73.84%), whereas minimum inhibition was recorded with 5 percent concentration of cow urine in Rhizoctonia solani (48.60%) followed by Fusarium oxysporum (54.76%) and Sclerotium rolfsii (55.38%) (Figures 1(a)1(c)).

S. numberFungal pathogenConcentrations (%)Colony diameter (mm)Percent of inhibition (%)

1Fusarium oxysporum0 (control)840.0

2Rhizoctonia solani0 (control)740.0

3Sclerotium rolfsii0 (control)650.0

Pot culture studies were carried out to find out the effects of cow urine spray on the phenotypic characters of Trigonella foenum-graecum (Methi) (Figure 2) and Abelmoschus esculentus (Bhindi) after 25 days (Figure 3). Parameters such as plant height, shoot length and root length, number of leaves, and leaf length and breadth were observed in the experimental and control plants. It is clear from the results (Tables 2 and 3) that plant height of Methi increased with increase in concentration of cow urine and duration of time. Maximum plant height of Methi was 14.30 ± 0.40 cm with maximum concentration, that is, 5% of cow urine. Plant height of Bhindi plants consistently increased to a maximum of 13.97 ± 0.50 cm in the plants treated with 5% concentration of cow urine; this was followed by the 12.03 ± 0.42 cm in 4% concentration of cow urine. The mean height of Methi plants was 9.00 ± 0.46 cm in control plants. Shoot length of Methi was 7.27 ± 0.25, 7.97 ± 0.25, 9.17 ± 0.31, 9.67 ± 0.25, and 10 ± 0.20 cm when sprayed with 1, 2, 3, 4, and 5% concentration of cow urine, respectively. Shoot length in control pot was 6.8 ± 0.30 cm. Maximum shoot length and root length of Bhindi plants were 7.83 ± 0.15 and 6.20 ± 0.36 cm with the plants sprayed with 5% concentration of cow urine followed by 4% concentration.

Conc. of cow urine (%)Plant height (cm)Root length (cm)Shoot length (cm)Number of leavesNumber of branchesLeaf length (cm)Leaf breadth (cm)

110.23 ± 0.752.97 ± 0.507.27 ± 0.257.00 ± 1.004.67 ± 0.580.90 ± 0.260.57 ± 0.15
211.17 ± 0.653.20 ± 0.407.97 ± 0.259.33 ± 0.586.00 ± 1.001.13 ± 0.250.73 ± 0.12
312.70 ± 0.663.50 ± 0.369.17 ± 0.3111.00 ± 1.006.67 ± 0.581.57 ± 0.251.23 ± 0.35
413.43 ± 0.753.77 ± 0.319.67 ± 0.2512.33 ± 0.588.00 ± 0.001.83 ± 0.121.53 ± 0.38
514.30 ± 0.404.13 ± 0.3510.00 ± 0.2014.00 ± 1.008.33 ± 0.581.97 ± 0.151.73 ± 0.21
Control 9.00 ± 0.462.13 ± 0.256.80 ± 0.306.67 ± 0.584.00 ± 0.000.90 ± 0.200.40 ± 0.10

Conc. of cow urine (%)Plant height (cm)Root length (cm)Shoot length (cm)Number of leavesNumber of branchesLeaf length (cm)Leaf breadth (cm)

18.33 ± 0.511.87 ± 0.296.47 ± 0.251.67 ± 0.581.33 ± 0.581.63 ± 0.211.43 ± 0.31
210.23 ± 0.573.27 ± 0.356.97 ± 0.232.00 ± 0.002.00 ± 0.001.80 ± 0.261.47 ± 0.31
311.27 ± 0.503.93 ± 0.257.33 ± 0.252.00 ± 1.002.67 ± 0.582.17 ± 0.251.90 ± 0.20
412.03 ± 0.424.50 ± 0.177.50 ± 0.302.67 ± 0.583.00 ± 0.002.40 ± 0.362.17 ± 0.25
513.97 ± 0.506.20 ± 0.367.83 ± 0.153.00 ± 0.003.00 ± 0.002.77 ± 0.252.40 ± 0.26
Control 6.50 ± 0.461.67 ± 0.314.80 ± 0.201.33 ± 0.581.67 ± 0.581.23 ± 0.310.97 ± 0.25

The root length of Methi was maximum 4.13 ± 0.35 cm with maximum concentration (5%) of cow urine. However, root length increased in all the experimental plants as compared to control. Increase in root length supports the fact that the application of cow urine influences growth by increasing the mitotic index.

The protein content found in seedlings sprayed with cow urine showed more protein irrespective of the concentration as compared to the control (Table 4). The maximum protein content was found in the seedlings of Methi treated with 5% cow urine, that is, 174.97 ± 0.50 mg/mL, whereas the control had only 36.50 ± 0.46 mg/mL of protein and the seedlings of Bhindi treated with 5% cow urine contain 164.40 ± 0.32 mg/mL of protein content while the control of Bhindi had only 38.80 ± 0.46 mg/mL protein content. Carbohydrate content in 1, 2, 3, 4, and 5% cow’s urine irrigated plant sample of Methi was 144.09 ± 0.17 mg/mL, 162.03 ± 0.56 mg/mL, 187.07 ± 0.23 mg/mL, 188.93 ± 0.78 mg/mL, and 194.40 ± 0.27 mg/mL, respectively, and the carbohydrate content in 1, 2, 3, 4, and 5% cow’s urine irrigated plant sample of Bhindi was 44.03 ± 0.11 mg/mL, 62.33 ± 0.17 mg/mL, 97.07 ± 0.59 mg/mL, 123.93 ± 0.12 mg/mL, and 164.40 ± 0.32 mg/mL, respectively (Table 5). However, the carbohydrate content in control plants of Methi and Bhindi was 138.80 ± 0.89 mg/mL and 134.20 ± 0.90 mg/mL, respectively.

S. numberConc. of cow urine (v/v%)Protein (mg/mL)
Methi Bhindi

1142.33 ± 0.5144.03 ± 0.11
2250.23 ± 0.5762.33 ± 0.17
3371.27 ± 0.5097.07 ± 0.59
44103.03 ± 0.42123.93 ± 0.12
55174.97 ± 0.50164.40 ± 0.32
6Control36.50 ± 0.4638.80 ± 0.46
CD0.168 ± 0.110.271 ± 0.12

S. numberConc. of cow urine (%)Carbohydrate (mg/mL)

11144.09 ± 0.17145.07 ± 0.17
22162.03 ± 0.56162.03 ± 0.56
33187.07 ± 0.23177.07 ± 0.23
44188.93 ± 0.78180.09 ± 0.78
55194.40 ± 0.27184.60 ± 0.12
6Control138.80 ± 0.89134.20 ± 0.90

The chlorophyll content of Methi and Bhindi (Okra) is shown in Table 6. The total chlorophyll content of Trigonella foenum-graecum (Methi) was recorded more in plant leaves irrigated with 5% cow urine. It had  mg/g of chlorophyll a,  mg/g of chlorophyll b, and mg/g of total chlorophyll. Control plants had mg/g of total chlorophyll. The total chlorophyll content in Abelmoschus esculentus (Bhindi) leaves was maximum with 5% cow urine irrigation ( mg/g) followed by 4% ( mg/g), 3% ( mg/g), 2% ( mg/g), and 1% ( mg/g). The control of Bhindi plants had  mg/g of chlorophyll a,  mg/g of chlorophyll b, and  mg/g of total chlorophyll.

S. number Conc. of cow urine Chlorophyll (mg/g)
Total chlorophyllChlorophyll
Total chlorophyll

110.407 ± 170.327 ± 120.733 ± 090.368 ± 270.176 ± 010.544 ± 02
220.451 ± 090.365 ± 800.816 ± 380.449 ± 810.241 ± 070.690 ± 44
330.563 ± 870.466 ± 631.029 ± 920.502 ± 430.301 ± 300.803 ± 98
440.922 ± 230.738 ± 071.660 ± 020.996 ± 180.603 ± 081.599 ± 88
550.972 ± 030.897 ± 961.869 ± 211.404 ± 920.842 ± 022.246 ± 28
6Control0.248 ± 280.189 ± 100.437 ± 710.146 ± 660.025 ± 080.171 ± 91

4. Discussion

This study revealed that the cow urine at different concentrations had considerable effect on the vegetative growth of R. stolonifer, Sclerotium rolfsii, and F. oxysporum. It is clear from the results that 15 percent concentration of cow urine showed maximum inhibition in growth of all the three fungal pathogens as compared to control. Inhibitory activity of cow urine against fungal pathogens have been reported by different workers [8, 15, 16]. Pot culture studies revealed that increase in cow urine concentrations increased the performance of all phenotypic characters of Methi and Bhindi. Present studies are in accordance with the findings of [17] Oliveira et al. 2009 who reported that the increase in cow urine concentrations increased the performance of all lettuce characteristics like fresh and dry leaf mass, fresh and dry stem mass, stem length, fresh root mass, fresh head mass, and commercial yield. The work of [18] Tharmaraj, 2011, reported that growth substances in panchagavya help to bring rapid changes in phenotypes of plants and also improve the growth and productivity. The protein and carbohydrate content found in seedlings sprayed with cow urine was more irrespective of the concentration as compared to the control. The biochemical contents (carbohydrates, protein, and amino acids) in Abelmoschus esculentus (L.) Moench and Vigna mungo increased with 3% concentration of panchagavya spray [8, 19]. It is evident from the results that the chlorophyll content of Methi and Bhindi plants increased with increase in concentration of cow urine. Similar findings with panchagavya spray were observed in Arachis hypogaea [20] and Abelmoschus esculentus (L.) Moench [8].

5. Conclusion

It was revealed from the study that cow urine caused inhibition in growth of all the three fungal pathogens used in the present studies. This demonstrated fungitoxic potential of cow urine against the three pathogenic fungi. The biochemical contents of both the plants increased when sprayed with cow urine. Therefore the use of cow urine provides better alternative to synthetic chemicals which are expensive and pose potential danger to the farmers, marketers, consumers, and environment. The cow urine can be used as biopesticide.

Conflict of Interests

The authors declare that they have no conflict of interests.


Authors are thankful to Department of Microbiology, Shoolini Institute of Life Sciences and Business Management, for offering facilities to carry out this work.


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