Integrated Aquaculture with Fox Nut- A Case Study from North Bihar, India

Abstract

Integrated Farming System Model by integration of fish and water chestnut with fox nut was developed in 50 ha of land in Darbhanga district. The net benefit from the system was recorded at Rs. 68,545 (1,26,505 – 57,960) as compared to traditional system i.e. fox nut production alone. Field based system of Makhana cultivation was standardized with other crops like fish, rice and water chestnut in cropping system mode The gross return from Fox nut-fish, Fox nut-rice and Fox nut-water chestnut was obtained as Rs. 2,82,810, 2,73,840 and 3,54,340 per ha, respectively while a gross return of Rs. 1,32,552 was obtained from Fox nut cultivation alone. The highest benefit cost ratio was recorded with Fox nut-water chestnut combination (1.79) followed by Fox nut-fish combination in field system of Fox nut cultivation under integrated farming system model.
Keywords

Full text

Int.J.Curr.Microbiol.App.Sci (2017) 6(10): 4906-4912
4906
Original Research Article https://doi.org/10.20546/ijcmas.2017.610.461
Integrated Aquaculture with Fox Nut- A Case Study from North Bihar, India
I.S. Singh1*, Lokendra Kumar2, B.P. Bhatt3, A.K. Thakur4,
A.K. Choudhary3 and Anil Kumar5
1ICAR-RCER, Research Centre for Makhana, Darbhanga, Bihar, India
2Indian Institute for Wheat and Barley Research, Karnal, Haryana, India
3ICAR-Research Centre for Eastern Region, Patna, Bihar, India
4National Institute of Research on Jute and Allied Fibre Technology, Kolkata, India
5BPS Agricultural College, Purnea, Bihar, India
*Corresponding author
A B S T R A C T
Introduction
Fox nut (Euryale ferox), an aquatic crop of
the Family Nymphaeaceae commonly known
as MAKHANA, is unique, highly nutritious,
fully organic non- cereal food, blessings for
the rural poor, especially of flood prone zone
of north Bihar, lower Assam, and part of
Bengal and who have perfected art of
cultivating fox nut. It is grown in stagnant
perennial water bodies like ponds, land
depressions, oxbow lakes, swamps and
ditches. Fox nut seeds are also called as Black
Diamond. The seeds of Fox nut are popped
and eaten as roasted as well as used in
preparation of various kind of sweets and
recipes. Fox nut is considered a superior dry
fruit, as it is endowed with several rich
nutritional ingredients.
The popped fox nut contain 12.8% moisture
(w/w), 9.7% protein, 0.4% fat, crude fiber (%
by wt) 0.2, calorific value (K. cals/100 g) 358,
amylose 18.2%, phosphorus 53.2 mg/100 g,
and iron 1.4 mg/100 g (Kumar et al., 2011).
It has some medicinal properties too and there
is a great export potential of this crop.
Integrated Farming System Model by integration of fish and water chestnut with
fox nut was developed in 50 ha of land in Darbhanga district. The net benefit from
the system was recorded at Rs. 68,545 (1,26,505 – 57,960) as compared to
traditional system i.e. fox nut production alone. Field based system of Makhana
cultivation was standardized with other crops like fish, rice and water chestnut in
cropping system mode The gross return from Fox nut-fish, Fox nut-rice and Fox
nut-water chestnut was obtained as Rs. 2,82,810, 2,73,840 and 3,54,340 per ha,
respectively while a gross return of Rs. 1,32,552 was obtained from Fox nut
cultivation alone. The highest benefit cost ratio was recorded with Fox nut-water
chestnut combination (1.79) followed by Fox nut-fish combination in field system
of Fox nut cultivation under integrated farming system model.
Ke ywords
Fox nut, Integrated
farming system,
Water chestnut,
Fishes, Pond and
agricultural fields.
Accepted:
29 September 2017
Available Online:
10 October 2017
Article Info
International Journal of Current Microbiology and Applied Sciences
ISSN: 2319-7706 Volume 6 Number 10 (2017) pp. 4906-4912
Journal homepage: http://www.ijcmas.com

Int.J.Curr.Microbiol.App.Sci (2017) 6(10): 4906-4912
4907
Production of fox-nut in Bihar
Bihar State accounts for over 80% of the Fox
nut production of the country. Darbhanga,
Madhubani, Saharsa, Katihar, Purnea, Supaul,
Kishanganj Araria and Sitamari districts are
major producer of Fox nut. These districts
comprise an area of 15000 ha under fox nut
cultivation. The State Government has set a
target to extend the cultivation of fox nut in
20,000 ha by 2020, by adopting the field
based fox nut cultivation technology. Use of
huge labours is the most important component
of fox nut cultivation and its post-harvest
processing. Five lakh families is directly
involved in fox nut cultivation, harvesting,
popping, and produce selling. According to an
estimate of state government that Fox nut is
grown in an area of about 15000 hectare.
The total yield recorded to be about 22500
tons of fox nut seed (gurri) and 7500 to
10,000 tons of popped fox nut which fetches
187 to 250 crores of rupees approximately.
Moreover it is privilege that fox nut
cultivation and popping is done only in India
while other countries are only cultivating it. It
is grown their as a wild aquatic weed of
ornamental/medicinal purpose.
Climate and morphology
Fox nut (Euryale ferox Salisb) is a plant of
tropical and subtropical climate. For its proper
growth and development the conducive range
of air temperature is 200 C--350 C, relative
humidity 50%-90% and annual rainfall 100
cm-250 cm, organically reach water bodies
with less than 50% water transparency
(Mandal et al., 2010). An important aquatic
herb, prickly water plant with gigantic
floating nature leaves of a size of 1-2 m and
these leaves are born on 0.90 to 1.5 m feet
long petioles predominantly nerved and
reticulated-veined beneath, green in upper and
purple in lower side, thorny in both side of
leave even in entire plant (Kumar et al.,
2014). It grows well in stagnant water of 0.2-
2 m depth, with thick rhizomatous stem,
deeply rooted in cluster form in sediment.
The crop growth period of Fox nut in pond
system generally varies between nine to ten
months; thus, farmers are unable to get more
than one crop in a year. Furthermore, the
yield potential of fox nut grown in this (pond
system) condition has been recorded only 1.1
to 1.6 t/ha (Mishra et al., 2003). In field
condition the productivity of improved strain
of fox nut varied between 2.6 and 3.0 t/ha
(Kumar et al., 2012). They further reported
that in field condition the crop growth period
was of only four months. To make the Fox
nut cultivation in deep water ponds more
profitable, the utilization of ponds should be
diversified by integrating the other aquatic
crop such as water chestnut, water lily and
some fishes in a scientific manner.
Water chestnut (Trapa bispinosa) is popularly
known as singhara or paani phal. In India, It
is mainly grown in Madhay Pradesh, Uttar
Pradesh, Bihar and Odisha. It is an annual
floating-leaved aquatic plant of temperate and
tropical fresh-water wetlands, rivers, lakes,
ponds, and estuaries.
It is a native crop of Eurasia and Africa,
where it is cultivated for its large nutritious
seed. Like Fox nut it also requires 0.30-0.60
m depth of water throughout its growth
period. It is cultivated during the months of
July to November every year. It adds the
phytomass in the range of 1 t/ha to 15 t/ha. Its
vegetative part is rich in Fe and Zn contents.
The yield potential varies from 1 to 6.0 t/ha.
The nutritional value of raw seed of water
chestnut is 4.7% protein, 0.3% fat, 0.6% fiber,
23.3% starch (carbohydrate), 1.1% minerals
and 70.0% water. Water chestnut kernels are
used to treat rabies, poisonous animal bites,
diarrhea and other diseases.

Int.J.Curr.Microbiol.App.Sci (2017) 6(10): 4906-4912
4908
Materials and Methods
Crop cultivation
Fox nut is cultivated either in water
bodies/ponds having water depth of 1.20-1.80
m or in 0.30-0.60 m deep shallow agricultural
fields.
Pond system
It is the traditional method of fox nut
cultivation. In water bodies, seed sowing is
not required, since leftover seed of previous
crop serves as planting materials of
subsequent crops. However, Fox nut
cultivation in new water bodies (ponds)
requires seed sowing. The seeds should be
broadcasted @ 80 kg/ha in the month of
December. In general, pond cultivation is
linked with low productivity as collection of
seed from bottom is a very tedious process
and possesses drudgery to health to Jalkar
farmers. Under pond condition, it takes a
duration of complete one year. Thus no other
crop can be grown.
Field system
The methodology of fox nut cultivation in
agriculture fields consisting 0.30-0.60 m
depth of water, has been standardized by
ICAR Research Complex for Eastern Region.
This system is very easy to operate and
provides opportunities to cultivate cereals and
fodder crops in the same piece of land in same
year. It raises the crop intensity by 200-300%.
The prerequisite for this system is to raise a
nursery. In cropping system mode of fox nut
cultivation, water chestnut, fish, particularly
catfishes, sweet flag could be cultivated
successfully. Hence diversification in aquatic
food system is possible in cropping system
mode of Fox nut cultivation.
The field is well prepared by two to three
deep ploughing, however, before ploughing,
for the proper nourishment of seedlings,
fertilizers @ 100:60:40 / ha, respectively, of
N, P and K is applied. The field is filled with
water up to the 0.45 m height of bund and the
seeds are sown in the month of December. An
amount of 20 kg healthy seed is broadcasted
uniformly in the entire nursery plot. For
transplanting in one hectare area, an area of
500 m2 is enough for raising the nursery. A
water level of 0.30 m. height is maintained
throughout the growing period of seedlings,
i.e., from December to March. The seedlings
are transferred from the nursery plot to the
main field in the first week of April and
transplanted at a distance of 1.20 x 1.25 m.
Integration of fishes and water chestnut
with fox nut
Pond of 1.0 acre size is selected and cleaned
and followed by removal of carnivorous
fishes by applying mahua oil cake @ 2.5 t/ha.
Transplanting and gap filling work was also
conducted for optimization of crop geometry
@ 7,000 plants/ha. The 10% area in the
middle of pond was kept vacant as refuge area
for proper oxygenation and better growth of
fishes.
The fish species (Rohu, Katla, Common carp
and Mrigal) were integrated @ 6,000
numbers/ha as fingerlings in the ratio of
40:20:20:20, respectively in March-April and
again in the month of September after harvest
of Fox nut. The harvesting of fishes gets
completed in the month of December-January
before the emergence of Fox nut crop. Water
chestnut is harvested in the month of October-
November. Since it is sown in the month of
2nd week of August and gets ready for first
harvesting in the last week of October.
The area under pond and agricultural lands is
given in the tables 1 and 2, respectively.
A multi-disciplinary research team
representing the disciplines of soil science,

Int.J.Curr.Microbiol.App.Sci (2017) 6(10): 4906-4912
4909
plant breeding, horticulture, engineering and
forestry was involved in the in-depth analysis
of respective components. The ultimate goal
is to work out the economics of different
components thereafter draw a concrete
conclusion pertaining to most economically
remunerative system after making the
comparison of the efficacy of different
components.
Case studies
To improve the livelihood of Fox nut growers
the NAIP project “Sustainable livelihood
improvement through need based integrated
farming system models in disadvantaged
districts of Bihar” was initiated in April, 2009
in 50 ha ponds of fox nut growers of Sadar
block of Darbhanga district. During the year
2013-2014, the coverage area of this project
was extended from one district to three
districts (Darbhanga, Madhubani and
Muzaffarpur) and the mode of Fox nut
cultivation widened from traditional ponds to
shallow agricultural fields. Out of this 50 ha
area, 36.4 ha was allotted under traditional
pond system while rest 13.6 ha was covered
under field mode of Fox nut cultivation.
Fox nut leaf Fox nut flower
Matured fruit of fox nut Exposed view of seed setting
in Fox nut fruit
Fishes collected from pond Fox nut plants growing in field condition

Int.J.Curr.Microbiol.App.Sci (2017) 6(10): 4906-4912
4910
Matured seed of fox nut
Matured plant of water chestnut Fresh fruit of water chestnut
Field view of makhana
Fig.1 A view of fox nut+fish system in pond Fig.2 A view of water chest nut crop in fox
Nut pond

Int.J.Curr.Microbiol.App.Sci (2017) 6(10): 4906-4912
4911
Fig.3 A view of fox nut crop at farmer’s Fig.4 A view of fish harvesting from fox
Field under NAIP nut field
Table.1 Economic analysis of different combinations in pond system of Fox nut cultivation
Component
combinations
Total
area
(ha)
Total production (t)
Average productivity
(t/ha)
Gross
return
(Rs) /ha
Net return
(Rs) /ha
Rankin
g of
Net
returns
Fox
nutseed
Fish
Water
chestnut
Fox nut
seed
Fish
Water
chestnut
Fox nut + Fish
22.6
0
33.67
14.01
--
1.48
6.75
---
2,05,270
1,02,635
III
Fox nut-Water
Chestnut
6.40
10.36
---
88.32
1.62
---
14.56
2,15,320
1,07,660
II
Fox nut + Fish-
Water Chestnut
4.65
6.73
1.70
64.17
14.48
3.67
13.80
2,53,010
1,26,505
I
Fox nut
2.75
4.55
----
----
16.56
----
----
1,15,920
57,960
IV
Table.2 Economic analysis of different combinations in field mode of Fox nut cultivation
Componen
t
combinatio
ns
Total
area
(ha)
Total production (t.)
Average productivity (t/ha)
Gross
return
(Rs) /ha
Net
return
(Rs) /ha
Ran
-
king
Fox nut
Fish
Water
chest-
nut
Rice
Fox nut
Fish
Water
chest-
nut
Rice
Fox nut +
Fish
8.40
24.02
3.78
-
-
2.84
0.56
-
-
2,82,810
1,21,520
II
Fox nut -
Rice
3.00
9.07
-
-
12.36
3.02
-
-
41.2
0
2,73,480
1,16,322
III
Fox nut -
Water
Chestnut
1.20
3.55
-
25.2
-
2.96
-
21.00
-
3,54,340
1,56,436
I
Fox nut
1.00
3.15
-
-
-
3.15
-
-
-
2,20,920
88,368
IV

Int.J.Curr.Microbiol.App.Sci (2017) 6(10): 4906-4912
4912
Results and Discussion
Five years results of this multicenter prize
agriculture system are presented and
discussed as under:
In both systems, integrated concept of
farming systems were adopted to augment the
per unit area net income of fox nut growers.
The results of this project have been presented
in tables 1 and 2. These results indicate that
the net returns in both integrated farming
systems are near about two folds of the solo
fox nut production system. Among all
combinations of two systems, fox nut- water
chestnut (in field condition) was recorded to
give the highest net return (Rs. 1,56,436/-) to
fox nut growers followed by fox nut + fish -
water chestnut in ponds (Rs. 1,26,505/-) and
Fox nut + Fish (Rs. 1,21,520/-) in field
system. On the other hand, Fox nut + Fish
combination gave net return of Rs 1.02.635/-
only which was at par with the net returns i.e.,
Rs 1,07,660/- only obtained from Fox nut-
water chestnut combinations. The findings of
this project suggest that integrated farming
may be very helpful to improve the economic
status of fox nut growers by providing
sustainable livelihood to them.
Thus, it is felt that fox nut cultivation in
cropping system modes offers unique
opportunity to cultivate it at shallow water
depth with optimum yield. This particular
technology could extend fox nut cultivation in
1 million ha, subject to availability of life
saving irrigation and seed extraction machine.
Govt. of Bihar will have to extend the
facilities for increasing area under Fox nut
since it is commercially cultivated in Bihar
only.
References
Kumar, Lokendra, Gupta, V.K., Jha, B.K.,
Singh, I.S., Bhatt, B.P. and Singh, A.K
2012. Status of Makhana (Euryale ferox
Salisb.) Cultivation in India. Tech. Bull.
No. R-32/PAT-21. ICAR RCER, Patna
P. 31.
Kumar, Lokendra, Gupta, V.K., Khan, M.A.,
Singh, S.S., Jee, Janardan and Kumar,
Ashok 2011. Field based makhana
cultivation for improving cropping
intensity of rice fields. Bihar J. Horti.,
1, 71-72.
Kumar, Lokendra, Gupta, V.K., Singh, I.S.,
Bhatt, B.P. and Kumar, Devendra 2014.
Sequential double cropping system of
makhana (Euryale ferox Salisb.)
cultivation in agricultural fields of north
Biahr, India. Int. J. Agricult. Stat. Sci.,
10:105-108.
Mandal, R.N., Saha, G.S. and Sarangi, N
2010. Harvest and processing of
makhana (Euryale ferox Salisb.) - A
unique assemblage of traditional
knowledge. Indian J. Tradit. Knowl.9,
684-688.
Mishra, R.K., Jha, Vidyanath and Dehadrai,
P.V. 2003. MAKHANA. P. 261. DIPA,
ICAR, New Delhi.
How to cite this article:
Singh, I.S., Lokendra Kumar, B.P. Bhatt, A.K. Thakur, A.K. Choudhary and Anil Kumar.
2017. Integrated Aquaculture with Fox Nut- A Case Study from North Bihar, India.
Int.J.Curr.Microbiol.App.Sci. 6(10): 4906-4912. doi: https://doi.org/10.20546/ijcmas.2017.610.461