08/05/2017 8:35 AM IST | Updated 08/05/2017 8:35 AM IST

This Is How Small Water Pumps Can Transform The Lives Of Farmers In Assam

Smallholder and marginal farmers who have used the pump for irrigation are much better off today.


Bikalp Chamola
The rice fields of South Kamrup in Assam

Bikalp Chamola*, South Kamrup, Assam

A few years ago, Umes Deka of Urangapara village in South Kamrup district of Assam was like any other smallholder farmer in the area, practising agriculture that barely met the needs of his family. Today, he is a successful vegetable grower who is prospering by using a small pump to irrigate his field.

"I learnt how to grow potatoes when I worked with farmers doing vegetable cultivation in char (river island) areas. They were enterprising farmers and minimised costs in every way possible. Learning from them, I initiated vegetable cultivation on my field with the help of a small pump," the sexagenarian farmer living near the town of Loharghat told "My field is next to a river and I use both, well water and water from the river. Now, I am trying my best to engage and earn as much as possible from my own fields."

Engines of growth

Small and marginal farmers in South Kamrup, where homestead farming is practiced widely, have recently adopted new engines as tools to boost income from agriculture. These engines are small water pumps of less than 2 horsepower capacity, which are being used extensively to draw water from both surface and ground sources.

In light of the recent announcement in the budget of doubling farm incomes by 2022, and two years into the Pradhan Mantri Krishi Sinchayi Yojana (Prime Minister's Farm Irrigation Scheme), can small pumps act as drivers to irrigate fields in the eastern parts of India?

Traditionally, farmers in South Kamrup practice backyard farming, which has little or no commercial value. While paddy cultivation is done by nearly everyone, growing vegetables such as ridge gourd, tomato, brinjal, pumpkin, and chilli for commercial purposes is finding takers now and has been adopted by tribal farmers, leading to a substantial increase in income for them.

Growing vegetables for commercial purposes has been adopted by tribal farmers, leading to a substantial increase in income for them.

Irrigating small farms

It is commonly held that the chief reason for farm distress in India is the prevalence of dry land farming with its dependence on an increasingly erratic monsoon. At the national level, over 50 percent of the country's arable area does not have access to irrigation, constraining farmers to grow crops in only one season. This proportion goes up for small farmers, and for the western regions. However, strange though it may seem, using their wit and hard work, marginal farmers (those with land holdings of less than one hectare) seem to have a larger share of their holdings under irrigation. This highlights the startling fact that the smaller the landholding, the higher the irrigation coverage.

Irrigation can be of flow type, from surface sources, or from ground water. Lacking the first two, western India seems to get most of its irrigation from groundwater aquifers. Since these regions also see greater stress on farming, higher intensification of agriculture has led to unsustainable withdrawal. There is, therefore, a need to re-evaluate methods to irrigate farmland in India. (See: Time has come to rethink the ways we irrigate farmland.)

By contrast, farmers in the eastern region have not used much of their abundant groundwater. So, whereas in Banaskantha district in Gujarat, the maximum depth in water table in January 2016 was 59 metres below ground level (BGL), the maximum depth in Assam was only 19 metres BGL in Dhubri district. Yet, groundwater does not seem to be fully used for irrigation in the east, as the total irrigation cover is still less than 5 percent in a state like Assam.

Unlike in western India, farmers in the eastern region have not used much of their abundant groundwater.

Ground level study

After interacting with 67 farmers in South Kamrup district who are using small and large pumps, to see how the two types of irrigation fared, a study conducted by Centre for Development Research found that many large pump users had switched to using small pumps.

Some two decades ago, shallow tube wells powered with 4-6 HP pumps formed a popular irrigation mechanism in Kamrup. For a state with 85 percent of sites having water available at less than 5 metres below ground level, this is quite surprising. Large withdrawals of water for growing paddy led to unsustainable withdrawals. This led to disuse of the pumps and a stop on their spread despite easy availability in the market. In recent times, the smaller farmers have tended to shift to small pumps. They are using them not so much for paddy but for less thirsty crops.

Village Square

The reason for the spread of small pumps is the much lower capital cost. A small electric pump of 1.5 HP costs barely 8,000 and can be run on a domestic power line. Larger capacity pumps, on the other hand, can cost much more and need special power transmission arrangements. A similar comparison on costs puts small diesel pumps ahead of larger ones. While reduced to per HP, the capital cost could be higher for smaller pumps, the fact is that the extra power is redundant in view of easy access to water in abundant aquifers.

Even the paddy growers among the users have little reason to despair. The region has huge standing surface water sources and abundant rainfall. So, dry patches are few and far between, needing only a small critical irrigation, which the small pumps can support. These are therefore making inroads to act as alternatives to the larger capacity pumps for this purpose.

Advantage of small pumps

The best advantage with small pumps is that they are lighter and can be easily carried from one point to another. This helps a farmer to carry it to his different parcels of land. The lightweight pumps, coupled with the fact that electric connections tend to be fixed, means that small capacity diesel pumps are more popular among the users of small pumps. This advantage beats the higher operating costs of small diesel pumps.

The best advantage with small pumps is that they are lighter and can be easily carried from one point to another. This helps a farmer to carry it to his different parcels of land.

As fragmentation of land is lower in case of marginal farmers, the natural choice for them is an electric pump. Additionally, a small diesel pump and a small electric pump cost no more than 15,000 combined, and therefore are being used by small farmers, in whose case fragmentation causes the land to be scattered much more than marginal farmers.

Drivers of change

What are the drivers of this change? Vegetables do not require the sort of volume of irrigation needed by paddy. Thus, not only are they better paying, they also need less water, which can be supplied by smaller pumps. Increasing population and growth in urban centers has tended to push the demand for vegetables in the region. Small towns such as Bagan and Loharghat, too, see a presence of dealers to purchase vegetables in bulk. In fact, it is not a rare sight to see vegetables being carried on boats in interior areas on smaller rivers.

The income per hectare of small and marginal farmers, owing to the intensive use of small pumps, is double that of semi-medium farmers. Also, the share of farm income in the total income of the household is much higher for small and marginal farmers compared to semi-medium farmers. Thus, it can be easily concluded that small and marginal farmers are investing higher amounts of labour in agriculture compared to semi-medium farmers.

Village Square

The study pointed to the fact that small pumps could be a viable solution for farmers with smaller landholdings, with easily available water and with higher fragmentation of land.

If small pumps are made available to small and marginal farmers in Assam in regions beyond South Kamrup, it is entirely possible to double their income. The government might want to intervene with a solution as simple as a small water pump and come to the aid of the large number of farmers who are facing distress in agriculture and migrating to cities.

Bikalp Chamola is a researcher with Pune-based Centre for Development Research. He has earlier worked with Rajeevika livelihood mission in Rajasthan. Chamola is a graduate of Institute of Rural Management Anand.

This article was first published on, a public-interest communications platform focussed on rural India.

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