88 CHAPTER 3 AN OVERVIEW OF TUR INDUSTRY 3.1 TUR CULTIVATION Red gram is an important pulse crop in India. It is also known as Pigeon pea, Arhar and Tur. Red gram is mainly cultivated and consumed in developing countries of the world. This crop is widely grown in India. India is the largest producer and consumer of Red gram in the world. Red gram accounted for about 17 percent of the total production of pulses in the country during the year 2006-07. Red gram is a protein rich staple food. It contains about 22 percent protein, which is almost three times that of cereals. Red gram supplies a major share of protein requirement of vegetarian population of the country. Red gram is mainly consumed in the form of split pulse as Dal, which is an essential supplement of cereal based diet. The combinations of Dal-Chawal (pulse-rice) or Dal-Roti (pulse-wheat bread) are the main ingredients in the average Indian diet. The biological value improves greatly, when wheat or rice is combined with Red gram because of the complementary relationship of the essential amino acids. It is particularly rich in lysine, riboflavin, thiamine, niacin and iron. In addition to being an important source of human food and animal feed, Red gram also plays an important role in sustaining soil fertility by improving physical properties of soil and fixing atmospheric nitrogen. Being a drought resistant crop, it is suitable for dry land farming and predominantly used as an intercrop with other crops. Nutritional values of edible portion of Red gram are given in Table No.1. Table No. 3.1: Nutritional values of edible portion per 100 g of Red gram Crop Energy (cal) Protein (g) Fat (g) Ca (mg Fe (mg) Thia -min Ribofla- vin (mg) Niacin (mg) Vit.A value Red gram 335 22.3 1.7 7.3 5.8 0.45 0.19 2.9 132 Source: Nutritive value of Indian Foods, by Gopalan, C., et al., Indian council of Medical Research pub, 1971, PP. 60-114.
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88
CHAPTER 3 AN OVERVIEW OF TUR INDUSTRY
3.1 TUR CULTIVATION
Red gram is an important pulse crop in India. It is also known as Pigeon pea,
Arhar and Tur. Red gram is mainly cultivated and consumed in developing countries of
the world. This crop is widely grown in India. India is the largest producer and consumer
of Red gram in the world. Red gram accounted for about 17 percent of the total
production of pulses in the country during the year 2006-07.
Red gram is a protein rich staple food. It contains about 22 percent protein, which
is almost three times that of cereals. Red gram supplies a major share of protein
requirement of vegetarian population of the country. Red gram is mainly consumed in the
form of split pulse as Dal, which is an essential supplement of cereal based diet. The
combinations of Dal-Chawal (pulse-rice) or Dal-Roti (pulse-wheat bread) are the main
ingredients in the average Indian diet. The biological value improves greatly, when
wheat or rice is combined with Red gram because of the complementary relationship of
the essential amino acids. It is particularly rich in lysine, riboflavin, thiamine, niacin and
iron.
In addition to being an important source of human food and animal feed, Red
gram also plays an important role in sustaining soil fertility by improving physical
properties of soil and fixing atmospheric nitrogen. Being a drought resistant crop, it is
suitable for dry land farming and predominantly used as an intercrop with other crops.
Nutritional values of edible portion of Red gram are given in Table No.1.
Table No. 3.1: Nutritional values of edible portion per 100 g of Red gram
Crop Energy
(cal)
Protein
(g)
Fat
(g)
Ca
(mg
Fe
(mg)
Thia
-min
Ribofla-
vin (mg)
Niacin
(mg)
Vit.A
value
Red
gram 335 22.3 1.7 7.3 5.8 0.45 0.19 2.9 132
Source: Nutritive value of Indian Foods, by Gopalan, C., et al., Indian council of Medical Research pub, 1971, PP. 60-114.
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Origin:
Its actual place of origin is very controversial as some people believe, it
originated in India, while others say, it originated in Africa. According to Vavilov
(1928), genus Cajanus originated in the Hindustan. As per Van Der Maesen (1980) also,
the centre of origin of the crop is India. According to Bentham (1861) and De Candolle
(1886), it originated in Africa.
Botanical Description:
Red gram [Cajanus cajan (L.) Millsp.] belongs to family Leguminosae.
Numerous nodules are present on roots; these nodules contain a Rhizobium bacterium,
which fixes atmospheric nitrogen. The flowers are self-pollinated but cross-fertilization
may also occur to some extent. The fruit of the Red gram is a pod. Seeds are round or
lens shaped.
Cultivation practices
Tur is cultivated in a wide range of soils from black clay to sandy soil, but very
sensitive to waterlogged conditions. Being a drought resistant crop, it is best suitable for
dry-land farming and predominantly used as an intercrop with other crops like cotton,
sorghum, ground nut, black gram etc., to increase the yield and maintain soil fertility.
Seasonality Crop season in Tur can be seen through out the year in major countries like
India, Myanmar and Australia. In India and Myanmar, it is normally cultivated during
rainy season beginning from June - July and ends in November - December. Tur is a
Kharif crop in India and arrivals start from October and extend till December.
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India is largest producer of Red gram constitutes 69.97% of world production and
stagnant production in the country reflected in global output. Other major countries
are Myanmar, Malawi, Kenya, Uganda and Tanzania. Among these Myanmar contributes
16.35 while other countries has very small share in world production. Myanmar annually
produces about 3.0-3.2 lakh tonnes and India is the major export market for this country.
Other producing countries in African continent have no large market surplus to trade in
international market. India is also major consuming country and constitutes 90% of
global Red gram consumption. India annually imports 2-3 lakh tones of which 95% is
from Myanmar.
Table No. 3.2 World Tur Production 2007
Rank Area Production (MT)
1 India 2310000
2 Myanmar 540000
3 Malawi 159365
4 Kenya 95637
5 Uganda 89000
6 Tanzania, United Republic of 48500
7 Dominican Republic 19456
8 Nepal 19245
9 Congo, Democratic Republic of 5750
10 Haiti 2500
11 Venezuela, Bolivarian Republic of 1997
12 Panama 1959
13 Burundi 1800
14 Bangladesh 1445
15 Philippines 1350
16 Trinidad and Tobago 1100
17 Jamaica 868
18 Grenada 530
19 Comoros 320
20 Puerto Rico 230
Source: FAO
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Graph No. 3.1 World Tur Production
Graph No. 3.2 Year -wise India Tur out put
Source: FAO
Source: FAO
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Major producing states in India:
In India, Red gram is one of the most widely cultivated pulse crops. It was grown
over an area of 3.56 million hectares with a production of 2.31 million tonnes in 2006-
07.
Table No. 3.3: All-India area, production and yield of Red gram during 2006 -07
Source: Department of Agriculture and Cooperation, New Delhi
Note: Area : Million Hectares
Production : Million Tonnes
Yield : Kg / Hectare
State Area % to All India
Production % to All India
Cumulative %
Yield
Maharshtra
1.12 31.46 0.82 35.50 35.50 726
Uttar Pradesh
0.41 11.52 0.30 12.99 48.48 749
Karnataka
0.60 16.85 0.28 12.12 60.61 470
Gujarat
0.29 8.15 0.22 9.52 70.13 751
Madhya Pradesh
0.32 8.99 0.22 9.52 79.65 683
Andhra Pradesh
0.40 11.24 0.16 6.93 86.58 401
Orissa
0.13 3.65 0.11 4.76 91.34 803
Jharkhand
0.07 1.97 0.06 2.60 93.94 645
Bihar
0.04 1.12 0.04 1.73 95.67 989
Tamil Nadu
0.03 0.84 0.02 0.87 96.54 732
Others
0.15 4.21 0.08 3.46 100.00 0
All-India
3.56 100.00 2.31 100.00 650
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@: Since area / production is low in individual states; yield rate is not worked out.
Maharshtra is the largest producer of Red gram accounting for nearly 35.50
percent of the total production followed by Uttar Pradesh (12.99 percent), Karnataka
Between 50 and 60 days of germination, the main shoot tip (called as “mother” shoot
locally) and the secondary branch tips (secondary shoots, called “daughters”) are pruned.
This promotes development of large number of tertiary shoots (called “grandchildren”
locally), which bear more number of pods, thus increasing the yield by 30-50%.
Grandchildren grow only at the expense of mothers and grandmothers, goes local saying.
Weed Management
Weed management is required only up to 60 days of crop growth, as this is the
time when weeds compete with the crop for nutrients. First weeding (hoeing) is to be
done at 20-25 days, while second hoeing is done at 50-60 days after sowing. Although
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some organic farmers are of the opinion that second hoeing damages root system and
need to be avoided. Do not throw or burn the uprooted or cut weeds. Leave them there in
the field as mulch. Normally no weeding is required after 60 days of crop growth, but in
case if it is needed then manual weeding should be done only in alternate rows.
Irrigation and water requirement
Red Gram requires 35-40 cm water, during its entire growth period. Optimum
moisture is necessary during (a) budding (b) flowering and (c) pod formation stages. As
red gram is a rainfed crop grown in assured rainfall areas, usually it does not require any
irrigation. If there is water stress, protective irrigation may be given in alternate rows at
these 3 stages. Avoid inter culture operations after harvesting of intercrop. Use harvested
intercrops' biomass as mulch to preserve soil moisture and to maintain microbial activity.
Important Pests & Dieses
The eggs of Helicoverpa are round and yellowish green in colour. Larvae emerge
from these eggs on warm summer days (at temperature of about 32-33oC), which can
grow up to 3.5 to 4 cm in 15-20 days. These larvae voraciously feed on leaves and can eat
entire leaf tissue except the veins. A larva can damage up to 20 pods in its life span,
before transforming in to pupa. The pupae are brown in colour and up to 1 cm long.
Moths emerge from these pupae in about months' time. Moths continue to reproduce year
round causing damage to the crops throughout the year except during hot
summer. Helicoverpa survives on 181 host plants across different seasons, including
cotton and legumes. Red gram is its preferred choice. Birds and parasitic insects predate
on the larva. Other insects grow either earlier or all through the cropping season.
Pod borer or Boll worm (Helicoverpa), aphids, jassids, thrips, mites etc are some
of the important insect pests of red gram. Fusarium wilt disease can also be a serious
problem in some places. Among them, Boll worm is most damaging and is of major
concern.
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Pest Life cycle
The eggs of Helicoverpa are round and yellowish green in colour. Larvae emerge
from these eggs on warm summer days (at temperature of about 32-33oC), which can
grow up to 3.5 to 4 cm in 15-20 days. These larvae voraciously feed on leaves and can eat
entire leaf tissue except the veins. A larva can damage up to 20 pods in its life span,
before transforming in to pupa. The pupae are brown in colour and up to 1 cm long.
Moths emerge from these pupae in about months' time. Moths continue to reproduce year
round causing damage to the crops throughout the year except during hot
summer. Helicoverpa survives on 181 host plants across different seasons, including
cotton and legumes. Red gram is its preferred choice. Birds and parasitic insects predate
on the larva. Other insects grow either earlier or all through the cropping season.
Economical threshold limit (ETL)
About 1-2 caterpillars per sq. m or 5-10 % pod damaged. ETL can be assessed by
using the number of insects trapped in pheromone traps, light traps or on yellow traps.
Pest Management
Habitat management and cultural practices
Biodiversity is a key component in keeping the pest's population below ETL.
Plant farm bunds with trees of Neem, Babul, Pongam, Sesban, Gliricidia etc. to get much
leaf litter. Intercropping of red gram with soybean, Moong, ground nut, sorghum/maize
and random planting of marigold and Hibiscus subdariffa (Lal ambari) helps in keeping
the pest population under ETL. Jaggery powder (10 kg/ ha) is sprayed on the soil surface,
to attract ants that predate on larva. About 10-12 bird perches are installed in one ha
attracts birds that predate on the pests. Yellow rice (1 kg rice cooked with turmeric
powder) kept on or near perches attracts predatory birds. Inundated release
of Chrysoperla 5000 eggs after 15 days of sowing and Trichogramma 50,000 eggs (2-3
cards) after 30 days of sowing can keep the problem of pests below ETL.
Control measures – If the pest exceeds ETL, the following control measures can be
adopted:
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1. 2-3 Sprays of 5% Neem seed kernel extract (NSKE) at an interval 15 days. NSKE
enriched with 5% cow urine has been found to be more effective. The
Azadirachtin in the NSKE controls the boll worm and other sucking pests.
Alternatively, 20 kg of Neem leaves boiled with 100 liter water can also be used.
2. Alternatively, Garlic, Chili and Neem crushed in cow urine can be sprayed on
leaves. Caterpillars can also be controlled by spraying 500 – 1000 ml HNPV per
ha.
Harvest:
Harvesting is preferred around new moon, in dark night day after crop matures.
When most of the leaves are shed and 80% pods turned brown, is the best time for
harvest
Yield:
15-20 quintal/ ha as rain fed intercrop and 25-30 quintal/ha as irrigated mono rop
can be obtained. Very early and early varieties yield 20-30 % less.
Storage:
Dry clean seeds/ grain in sun to ensure moisture below 8%. Beetles affect red
gram in storage. Mix crushed Neem leaves with grain and store in gunny bags. Gunny
bags can also be treated with 5% Neem oil.
Processing of Tur
Processing is an important marketing function in the present day marketing of
Red gram. Processing convert the raw materials and bring the produce nearer to human
consumption. It is concerned with value addition to the produce by changing its form.
Pulses are generally converted into Dal by decutilating and splitting the whole seed. Over
75 percent of the total legumes produced in the country are split into Dal.
Dehulling pigeonpea is a primary process that converts the whole seed into dhal.
The dehulling operation involves two steps;
1. Loosening the husk from the cotyledons.
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2. Removing the husk from the cotyledons and splitting them using a roller
machine or stone chakki (quern).
Before dehulling in chakki, pigeonpea seed is soaked in water for 2 to 14 hours. Some
farmers treat the seed with oil before dehulling.
Processing of Red gram is generally known as Dal milling or dehulling. Milling
means removal of the outer husk and splitting the grain into two equal halves. Dal milling
is one of the major food processing industries in the country, next to rice milling. The
efficiency of conversion of grain to Dal by traditional methods of milling is low and the
resultant product especially that from the wet method is inferior in cooking quality. The
average Dal yield varies from 68-75 percent (theoretical value 85 percent), i.e. a net loss
of 10-17 percent during the conversion of Red gram into finished Dal by traditional
methods. In modernizing the Dal milling industry, the Central Food Technological
Research Institute (CFTRI), Mysore, has recommended an improved method of Dal
milling.
102
Figure No. 3.1 Steps in Dal Milling
Steps of Dal Milling
Cleaning
Pre-Conditioning
Dehusking
Lump Breaking
Conditioning and Splitting
Remove all impurities i.e, dust, chaff, dirt, grits etc from Red gram grains (whole) and separate according to size. Cleaning is done in rotary seed cleaners
LSU type dryer is used to condition the clean Red gram grains. Cleaned grains are passed twice through hot air at about 1000C for a certain period of time and tempered after each pass in the tampering bins for
After preconditioning the Red gram grains are dehusked pearler or dehusker are used to dehusk the preconditioned grains and almost all the grains are dehusked in a single operation. Dehusked whole Red gram grains are separated from split Red gram and mixture of husk broken etc. the dehusked wholegrain are received in a screw conveyor where water is added at a controlled rate. The moistened gota are collected on the floor and allowed to remain as such after about half an hour.
A lump breaker is used to break the lumps formed by some of the moistened whole grains.
The dehusked whole grains after lump breaking are dried upto the proper moisture level in LSU type dryer. The hot conditioned and dried dehusked whole grains are splitted in emery roller. All the whole grains are not splitted in one pass. So grade “I” pluses dehusked whole grains and small brokens are separated from the mixture. For subsequent splitting the unsplit dehusked grains are again feed to the conditioner.
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Marketing Practices
1. Assembling:
Assembling is an important marketing function. Assembling includes the
operation of collecting Red gram produce from different villages to a central place i.e.
primary market and secondary market for its further movement to the Dal millers or the
consumers.
Major assembling markets:
Some important assembling markets of different states are as under: