Neem Coated Urea

Introduction
Agronomical trial on Paddy and Wheat crops with Neem coated Urea as source of Nitrogen has produced significantly higher yield at research and farm level. Looking into the potential of Neem Coated Urea and its acceptance by the farmers, Ministry of Agriculture in July 2004, included the Neem Coated Urea in FCO. The use of Neem Coated Urea has been found to improve the uptake of N, P and K significantly. Since 2008 the, Ministry of Chemicals and Fertilizers allowed Neem Coated Urea manufacturer to sell NCU at 5% above the MRP, to recover the cost of coating, however cost of Neem kernel Oil and production as such of Neem Coated Urea has increased significantly. As per recent notification dated 25.05.2015 all the urea producers in country shall now be producing 100% urea as NCC in order to improve crop productivity and reduce the subsidy. Balanced use Nitrogen, Phosphorous, Potassium along with the requirements of secondary and micronutrient increase the yield at economic level. Of the three major Nutrients Nitrogen, Phosphorous and Potash, nitrogen has received the maximum attention because of many reasons. Nitrogen gets easily converted to available forms from various types of fertilizers that are being applied for crop nutrition. Also nitrogen in Nitrate form is highly mobile and get lost through the process of leaching especially under irrigated conditions. Nitrogen is also lost in the process of de-nitrification where the nitrate form is back converted into Nitrogen and Ammonia and lost to atmosphere.

There are many references available on Nitrogen that indicates that the recovery of nitrogen under irrigated and submerged condition is hardly 35% due to various kind of loses it is subjected to such as de-nitrification, ammonia volatilization and leaching. In the world 50% of nitrogen is supplied through Urea and the scenarios in India are no different. In order to keep the nitrogen losses at minimum level, agricultural scientist have come out with various agronomical recommendations, to reduce these loses. The prevalent recommendations are split application, band placement, and deep placement using the see drill. All these practices make available the right quantities of requirement at the place of absorption. Application of bigger granules of urea retards the dissolution.

In addition to agronomical practices, various kind of nitrification inhibitors such as Nitrapyrin (N-Serve) and Terrazole (Dwett) were developed in USA. These Nitrification agents are very expensive and add to the already high cost of crop production in India.

Keeping in view the low Nitrogen use efficiency it has been felt to find out the use of some indigenous use of material and coating process for reducing the nitrogen losses from Urea. Use of Neem oil in various form such as Neem oil cake, Neem oil and other Neem product have been found useful in reducing the release from Urea and increase its use efficiency. Neem oil contains various kind of bitter, especially the Meliacins that have been identified in retarding the process of nitrification of Urea.

Production of Neem Coated Urea at NFL

National Fertilizers Limited, in the year 2002, standardized the techniques for production of Neem Coated Urea in situ, at its Panipat Unit. Since then many changes have been made in the process and applicant solution, to have a uniform and consistent coating of Neem oil on urea prills, to maintain the concentration of Neem oil content as per the specification prescribed in FCO. Based upon the results of extensive field trial where Neem Coated urea was found to be agronomical superior to normal prilled urea, NFL became the first company in India that was granted the permission to produce and market the Neem Coated Urea, vide Govt of India Notification No S.O.807 (E) dated 9 July 2004 .Today the company has facilities at all its 3 Units namely Nangal, Bathinda, Panipat and Vijaipur, for production of Neem Coated Urea. Neem coated urea produced at these production facilities is marketed in all the 14 States where the company is marketing its Urea.

Year wise Unit wise production of Neem Coated Urea(In MT)

Year

Unit

Total

Nangal

Bathinda

Panipat

Vijaipur

2003-04

 -

12627

61090

-

73717

2004-05

 -

112004

102476

9762

224242

2005-06

 -

147677

143018

197400

488095

2006-07

 -

56085

74603

184575

315263

2007-08

 -

38762

6187

57820

102769

2008-09

 -

2355

182

9377

11914

2009-10

 -

12163

8673

16812

37648

2010-11

 -

40283

40137

39646

120066

2011-12

 -

73829

131570

434169

639568

2012-13

 -

70834

119872

892413

1083119

2013-14

 103175

148000

161141

851149

1263465

2014-15  157692

223722

217923

765968

1365305

2015-16  465906

487290

507595

1809408

3270199

Front Line demonstrations
Since   2004-05,   NFL   has   been   regularly   conducting   200   to   250   front   line demonstrations, at farmers’ field, in close collaborations of the respective State Agriculture Universities, in the states of Punjab, Haryana, Rajasthan, UP, MP Chattisgarh. The Yields in the treatment where Neem Coated Urea has been used, has increased from 6-11% depending upon crop and location.

Other Benefits
Apart from the increase in yield, Neem Coated Urea application has other use full effect in paddy and wheat crops. At one of the locations in the state of UP, farmers have observed that the menace of Neel Gai has reduced significantly in paddy crop. In yet another observation, at Panipat, farmers observed no incidence of leaf folder and, stem borer  in  paddy  crop.  At  Sangrur  and  Gurdaspur,  in  the  States  of  Punjab,  farmers  observed that the incidence of white ant was reduced with the use of Neem coated Urea in wheat crop. This is because of fragrance of Neem oil that on dissolution was released in the standing water in the standing water and insecticidal properties of Neem.

 

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