Second Green Revolution and dismal pulses production in India:

Dear friends, 

I. Second Green Revolution : Governments after Governments are assuring us that they will usher in a Second green revolution to improve agricultural production by addressing the productivity gap and through value addition.  Please believe that they have also set for themselves an ambitious goal of two to three times increase in the farmers’ per capita income within five years (I am hearing your heckles and giggles, my friend. Don't comment anything. Perhaps this criticism will land us in jail).   

The success (?) of first Green Revolution can be attributed to the introduction of Chemical fertilizers (N,P and K) which increased agricultural production substantially. Even after all the sufferings of farmers in the recent past, the worrying factor is that our policy maker’s mind set (should I say ‘Sick’) is still in the same ‘increasing agricultural productivity’ aspect.  

The second Green Revolution may be a possibility not by increasing Agricultural productivity but in ‘Mechanization’ and ‘Value Addition of the harvested produce’.

II. Dismal pulses production : Indian Agriculture and Food Security policies have emphasized cultivation of rice and wheat and paid least attention to coarse grains and pulses resulting in a steep fall in pulses production and consumption by rural masses.

This is being attributed to the existing agriculture and food security policies, which have emphasized cultivation of rice and wheat to the exclusion of coarse grains and pulses which traditionally have been the primary source of protein for the rural poor. 

After a steep fall in pulses production and consumption, our Govt. opened its eye to ‘Introduction of Special initiative of Accelerated Pulses Production Programme (A3P)’ in 2010 under NFSM pulses programme to boost the production of pulses (Red gram, green gram, black gram, Chick pea and lentil) by active promotion of production and protection technologies in 1000 clusters of 1000 hectares each with a hand holding approach. (Subject material gleaned from several web sources). 

Seeds, Protrays, polythene sheets for usage as weed mat, MN mixture (‘Pulse wonder’ a MN enriched fertilizer developed by TNAU is supplied in TN), Water soluble fertilizers and DAP are available at subsidized cost under this program. Micro irrigation is provided exclusively for pulses in an area of 5000 Ha, wherein portable sprinklers and rain-guns are also earmarked to the farmers at subsidized cost. It is programmed to upscale and adopt this technology in an even more grand scale in the coming years also.

As a result of active 'A3P' implementation coupled with better crop management the customary image of pulses as 'rain fed crop' changed to that of pulses as 'irrigated pure crop'. A3P implementation has also resulted in increased Redgram (Pigeon pea / Thuvarai) area from 0.26 Lakh Ha.in 2009-10 to 0.60 Lakh Ha.in 2010-11 and fall in food grain production in some states which is not a cause for concern since we are already producing more food grains than what is necessary for our country.

Impressed with my post on ‘Red Gram’ (Pigeon pea /Thuvarai) in this blog, Mr.N.madhubalan, Assistant Director of Agriculture, Dharmapuri Dt, Tamilnadu had sent some photographs to share with our readers. He claims that he had selected 500 farmers to implement 'Accelerated pulses production program' in 150 ha, NADP-151 Ha. and NFSM in 100Ha. and satisfied with the rate of acceptance among the farmers about this modern pulses cultivation technology.

Transplanting Redgram (Pigeon pea / Thuvarai) is the new technique: 

In pic. above: Germination of seeds in 98 cavity Plugtrays or protrays.

In pic. below: Seedlings transferred to polybags and raising them for 1 month before transplanting in the main field at favorable climatic conditions. 

Benefits of this technology are:

• to save seeds as only 2 - 3 kg is required for 1Ha, 
• to avoid damage to seeds by drought or heavy rains,
• to avoid late sowing and adhering to correct crop season,
• to maintain higher plant population,
• to maintain correct plant spacing, 
• to increase the rate of 'rhizobium' inoculation,
• to reduce the chances of Nematode attack to young seedlings,
• to increase drought tolerance because of deep rooting,  
• to save two manual de-weeding costs, 
• to reduce the chances of pest attack, 
• to reduce the Fertlizer and Pesticide wastage at the first month, 
• to reduce the cost of applying them,
• and to get more yield.    

Innovation in cult. tech.1: Instead of the above procedure, raising seedlings in 'Root trainers' is the best option. It eliminates transplant shock and the cost of transferring seedlings from 'protrays' to 'polybags'. Handling of root trainers in the field at the time of planting is also very easy and damage to the plants can be avoided altogether. (Picture: An illustrative Example only).

According to experts the actual yield in India for red gram is 700 Kg against its actual yield potential of 3000 Kg / Ha.  We can definitely bridge this wide gap between yield potential of a crop and actual yield in the field by adopting to latest technologies only. (Click this link). 

Innovation in Mechanization 1.Tropicultor : Though there are many companies supplying 'Seed Drills' in India, a multipurpose equipment for small farmer's need is somewhat difficult to find. So, I can say that a major break through in technology is the introduction of an implement called as 'Tropicultor' by ICRISAT, Hyderabad, that can be drawn either by animal or Tractor. It is a multipurpose implement that executes land preparation, seed and fertilizer placement, weeding, bund formation and earthing operations. The implement costs about Rs.50,000 and is designed and supplied by ICRISAT.

Link 1 : Tropicultor: small farmers can sit pretty on this machine. M.J.Prabu.

Link 2 : Article in 'The Hindu': Cutting both time and cost of cultivation.

Link 3 : Details of 'Tropicultor'. 

Link 4 : ICRISAT :Methods of fertilizer application. See Sl.No.8 for 'Tropicultor'.

Innovation in Mechanization 2. Combined harvesters for pulses: Nowadays farmers in Tamilnadu are using the same combined harvesters that are designed to harvest Paddy for harvesting all types of pulses also by changing the mesh required for separation of grains depending upon the pulse variety that is to be harvested. Total cost to harvest one acre comes to about Rs.1000 only. Link : Mechanized harvester for pulses. 

I would like to conclude by again saying that succour to Indian farmers may be a possibility not by increasing Agricultural productivity but in ‘Mechanization’ and ‘Value Addition of the harvested produce’.

Note 1: My post on 'Redgram (Pigeon pea / Thuvarai) cultivation' in this blog is one of the most read article surpassing 'Melia' and 'Gmelina' posts in terms of readership. My personal experience in the cultivation of Pigeon pea (yield attained:1750 Kg/Ha) is explained in detail in this link.  

Note 2: About ‘Pulse wonder’:

It is a micro nutrient enriched fertilizer developed by 'Tamil Nadu Agriculture University' specifically for pulse crops. Farmers can buy the ‘Pulse Wonder' at 50 per cent subsidized price. 
In addition to major nutrients (NPK), ‘Pulse Wonder’ also contains micro nutrients such as iron and boron and plant hormones known as 'auxins' to promote growth.
'Pulse Wonder' should be applied at the time of flowering and fruiting to enhance yields by 10-20 per cent. It decreases flower shedding and increases drought tolerance in pulse crops.
Dosage for 1 acre: Dissolve 2.5 Kg of 'Pulse wonder' + 300 ml of 'Wetting agent'  in 200 litres of water and spray it as foliar application on pulse crop during early morning hours.    

Regards,

A.Vishnu Sankar

Pigeon pea (Red gram, Thuvarai in Tamil) production technology

Dear friends,

I have given below a brief account of pigeon pea cultivation practices as recommended by 'ICRISAT' (International Crop Research Institute for Semi Arid Tropics). In the second part of this same article, my actual cultivation experience of pigeon pea is explained in detail.

I. Pigeon pea (Red gram, Thuvarai in Tamil) production Practices:

• Native plant of India.

• It's drought tolerance and the ability to use residual moisture during the dry season makes it an important crop.

• It is a slow growing crop mainly cultivated in the raining season.

• When cultivated in fertile soils with proper irrigation the plants attain 3 -4 m height.

• At a wider spacing it may form a bush and at narrow spacing it remains compact and upright.

• Root nodules of 'Rhizobia' forms on the root system.

• Pigeon pea is sensitive to water logging. So, plant them in well drained soil for good root and nodule development.

• Before sowing at least two ploughing is necessary. Summer ploughing helps in minimizing the weed and to conserve moisture.

• Cultivation in ridges and furrows system is recommended.

• Sowing Depth: 4 to 5 cm.
• Response to Nutrients:
• Effect of Nitrogen is almost negligible. However a starter application of 25 kg of N / ha is beneficial.
• Response to 'P' application has been positive. Application of 17 -26 kgs / ha increases yield by 300-600 kgs/ha.
• Pigeon pea does not respond to K application unless it is grown on low Potassium available soils.
• Most of the pigeon pea cultivars are susceptible to Zinc deficiency. So foliar application of 2-4 ppm of Zinc Sulphate @ 0.5% with 0.25 % lime have been effective.
• NPK requirement: 20 : 17 : 17
• It is observed that rhizobial inoculation increase the grain yield from 19 to 68%.

 















IRRIGATION:

• Irrigation at the time of flower initiation and pod setting are essential. The drought stress symptoms are indicated by the leaves pointing towards the sun at noon.
• Excessive moisture promotes vegetative growth. Proper irrigation increases the seed yield by about 150 - 160% over the non-irrigated control at ICRISAT.

• HARVEST: It should be harvested when 80% of the pods become brown.

II. My actual cultivation experience of pigeon pea:

• Initially, ICRISAT's 'ICPL 87119'- a bold seed variety was sown. But heavy monsoon rains badly affected the seeds and only about 20% germination rate was observed. Gap filling for the remaining 80% is not feasible, so destroyed all the plants by ploughing and opted for a fresh crop.

• Next variety selected: ICPL 85063.

• Area : 3 acres.

• Field preparation: Ridges and furrows.

• Spacing: Row to Row - 2.5 feet on ridge slope. (Actual spacing requirement for the plant is 3 feet. Do not reduce the spacing in fertile soils with irrigation facility. The ICRISAT's recommendation of 70 cm spacing is for dry lands.

• Spacing: Plant to plant - 2 feet. (ICRISAT's recommendation of 20cm - 30cm is too narrow. Better go for above 1.5 feet - 2 feet spacing to avoid overcrowding. In my experience, I got more grain yield from sparsely populated areas. Please note that, at a wider spacing the plant will grow as a bush and at narrow spacing it remains compact and upright.)

• Seed requirement: If you sow single seed per pit, about 4 kgs (approx.) of seeds may be required for a spacing of 75cm x 60cm and if you opt for 2 seeds per pit then about 8 kgs (approx.) of seeds will be required. The quantity of seed requirement will also vary depending upon the size and weight of selected seed variety.

                                                 
About 1000 plants were raised in plugtrays / protrays for gap filling.

Presoaking of Seeds: Soaking the seeds in good water for 6 hours before sowing is an essential activity.

Seed Treatment: Since the procured seeds were already treated with the chemical fungicide 'Thiram', seed treatment using 'Rhizobium' was not done. So 'Rhizobium' was broadcasted over the field.
Inter crop: Black gram in a single row on opposite side of the red gram sown ridge.
Intercrop duration: 90 days.
Deweeding: A total of 5 manual deweeding was done.
Basal :

• FYM 5 Tons per Acre broadcasted before first ploughing..

• Rhizobium 1 kg + Azosphyrillum 2 Kgs + Phosphobacterium 2 kgs + Viridi 500 gms were thoroughly mixed with FYM 50 Kgs and broadcasted over an acre before I irrigation.

• 2 Kgs of Micronutrient Mixture for Pulses (M.N. mixture No:VII in Tamilnadu) mixed with 20 kgs of sand per acre was broadcasted before III irrigation.

• Maturity / Age: 160 - 180 days.

• Irrigation: To arrest the vegetative growth of the plant, irrigation was stopped by 140 th day to induce flowering.

• After flowering, controlled irrigation was provided enabling the pods to get filled up.

• Fertilisers:N:P:K applied was 46:32:32 against the ICRISAT recommended dosage of 20:17:17.

• Top dressing of M.N Mixture 5 kg per acre on 60th day.

• Foliar application of Zn So4 two times.

                                                 
Pest Control:

Steps to control Pod borer attack.

• Used 'Phremon traps' / 'Lures' of 'Helicoverpa armigera' @ 10 per acre at the time of flowering and changed them after 45 days with fresh ones.

• Foliar spray of Bacillus thuringiensis (B.T, Brand: HALT) @ 4%/litre - 3 applications with a gap of 15 days between each spray.

• Released 'Trichogramma Kilonis' an egg parasite @ 3 cc per acre (15 strips of eggs) - 3 times with a gap of 15 days between each one.

• Harvesting procedure (Conventional): Cut the stem at the base ==> bundle the plants ==> shift them to thrashing floor ==> bundles to be stacked in upright position for 2-3 days for effective drying and fall of leaves ==> beat the dry plants with sticks ==> remove dusts and collect seeds.

• Using Mechanical thrasher: By using "All purpose mechanical Thrashers", one can reduce the cost of harvesting expenses considerably.

• Yield attained: Total yield 2115 Kgs in 3 acres (i.e) 705 Kgs per acre.
• Yield attained from the inter crop 'Blackgram': 140 Kgs per acre

• Gross income per acre: Pigeon pea: Kgs.705 x Rs 36 = 25380

• Gross income from Black gram:Kgs.140 x Rs 42 = 5880

• Total income from Pigeon pea and Black gram: Rs.31300

• Expenses per acre:Rs. 9800 approx.

(About 50% of this expense was incurred in harvesting and for manual cleaning. I was not able to get the mechanical thrasher at the time of harvest, though it had been booked well in advance. If I had got the mechanical thrasher in time, I would have minimized the harvesting expenses and the total expenses would be around Rs.7000 only)

• Net income per acre from both main crop and inter crop: Rs. 21500 (Rd) in a period of 6 months.

Please note that organic practices were adopted for pest control and chemical fertilizers were used to attain the recommended N:P:K level.

I have learned a very good lesson from this crop and I will be more happy if our dear farmers took a balanced view of the recommendations to attain more yield and mechanize the farming activity to get more profits.

Please have a look at one more interesting post on Pigeon Pea (Red gram / Thuvari) by me at this LINK  (Second Green Revolution and Dismal Pulses production in India) before leaving out of this page.

 
Regards,
Vishnu Sankar.