Lok Sabha Question No. 917 (UNSTARRED), answered on 2025-02-07
Subject: Nano DAP
Ministry: CHEMICALS AND FERTILIZERS
Asked by: Shri G M Harish Balayogi

## GOVERNMENT OF INDIA MINISTRY OF CHEMICALS AND FERTILIZERS DEPARTMENT OF FERTILIZERS

## LOK SABHA

UNSTARRED QUESTION NO. 917 TO BE ANSWERED ON: 07.02.2025

## Nano DAP

## 917: SHRI G M HARISH BALAYOG:

Will the Minister of CHEMICALS AND FERTILIZERS be pleased to state:

- (a) the  details  regarding  the  yield  and  the  quantum  of  plant  uptake  of  nitrogen  and phosphorus when traditional DAP is used, crop-wise;
- (b) the  details  regarding  the  yield  and  quantum  of  plant  uptake  of  nitrogen  and phosphorus when two sprays of Nano DAP are applied, crop-wise;
- (c) the details regarding the nitrogen and phosphorus nutrient content in crops, where traditional DAP have been used, crop-wise;
- (d) the details regarding the nitrogen and phosphorus nutrient content in crops, where two sprays of Nano DAP have been used, crop-wise; and
- (e) whether the Government has conducted any field survey/assessment to determine the  efficiency  of  Nano  DAP  as  compared  to  traditional  DAP,  if  so,  the  details thereof  including  the  parameters  used  to  determine  efficiency  and  if  not,  the reasons therefor?

## ANSWER

THE MINISTER OF STATE IN THE MINISTRY OF CHEMICALS & FERTILIZERS

## (SMT.  ANUPRIYA  PATEL)

(a) to (e):   The Government of India has notified Nano DAP under the Fertilizer Control Order  (FCO)  -  1985  on  the  basis  of  the  bio  efficacy  trials  and  toxicology  tests.  M/s Coromandel  International  Limited  (CIL),  M/s  Zuari  Farm  Hub  Limited,  M/s  Indian Farmers  Fertilizer  Cooperative  Limited  (IFFCO)  and  M/s  Rashtriya  Chemicals  & Fertilizers Limited (RCF) have been granted permission to manufacture Nano DAP.

As  per  the  information  provided  by  ICAR,  the  total  uptake  of  nitrogen  and phosphorus (kg per tonne of main produce) when traditional DAP is used varies with crops,  season  and  location.   The  average  nutrient  content  in  different  crops  is  given below:-

|              | Total uptake (kg/t)   | Total uptake (kg/t)   |
|--------------|-----------------------|-----------------------|
| Crops        | Nitrogen (N)          | Phosphorus (P)        |
| Rice         | 20                    | 4.8                   |
| Wheat        | 25                    | 3.9                   |
| Maize        | 30                    | 5.9                   |
| Sorghum      | 16.4                  | 3.4                   |
| Pearl millet | 31.8                  | 7.6                   |
| Fingermillet | 24.2                  | 4.1                   |
| Chickpea     | 60.7                  | 4.0                   |
| Pigeonpea    | 70.8                  | 6.7                   |
| Lentil       | 57.0                  | 6.5                   |
| Greengram    | 106                   | 21.0                  |

In case of traditional DAP use, Grain and straw nitrogen was 1.32% and 0.82% whereas grain and straw phosphorous content was 0.52% and 0.29% in rice. Treatment containing 2 sprays of Nano-DAP and 2/3 of recommended Urea resulted in Nitrogen content of 1.22% (grain) and 0.90% (straw), while grain and straw phosphorus content was 0.54% and 0.24% in rice.

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