HomeOpinion & AnalysisHow internet technology can improve agriculture, food security

How internet technology can improve agriculture, food security


By Talent N Ndlovu

THE world is in dire need of ways to improve food production and productivity to match the urgent and increased demand for food from a growing global population in the face of ongoing and widespread adverse impacts of climate change.

It appears that a greater part of the answer to the global food challenge, may unequivocally lie in internet of things (IoT)-driven technological innovation, which form the bulk of new innovations that are transforming modern commercial agriculture around the world.

The most promising and productive new innovations cited around the world include indoor vertical farms, farm automation, blockchain, remote sensors, genetic engineering and drones, almost all of which are IoT-driven technology and promise to be the future of commercial and modern agricultural systems.

Indoor vertical farming

One of the major challenges facing the agricultural sector is a shortage of agricultural land, especially in urban areas.

An exceptionally creative method of farming that has evolved over the years and is increasingly becoming popular in many countries is indoor vertical farming.

In these farms, crops, usually vegetables, are grown in vertically-layered stacks along building walls forming tower-like structures.

The vertical field set-up of these farms maximises the land available, producing more food per square metre compared to farming in a traditional flat-lying field.

The internal environments of these farms, including light, temperature, moisture, and nutrient levels are also tailor-made to suit the crops being grown, being heavily-technified, and employing aeroponic or hydroponic production systems instead of the traditional soil medium.

The ability to control the crop environment and growing conditions gives indoor farming the competitive edge to grow high-quality crops that meet clients’ specific demands, escape natural-weather-related challenges, and facilitates the production of crops all-year round, allowing farmers to meet the demands of commercial buyers.

With only a few major downsides such as being limited to vegetable production and the need for a vertical structure like a wall to support the vertical field layers, indoor vertical farming offers immense benefits to vegetable farmers to maximise resource use, increase yields and income, control nutrient and chemical use, and satisfy all-year round crop demands to meet commercial market demands.

In addition, this technique has the potential to harness new and young farmers based in urban areas, who often experience challenges in accessing land and markets.


Although indoor vertical farming offers a sound solution to vegetable farming challenges, outdoor farming of crops and livestock, which faces numerous risks and uncertainties arising from weather, pest, disease and soil conditions, remain an integral part of agricultural production.

Unlike in indoor farming, the outdoor farming growing environment cannot be controlled, hence monitoring crop, livestock and field conditions is a fundamental daily activity, especially given the exposure of the enterprises to multiple risks and uncertainties.

It is precisely in this monitoring role that the agricultural drone has become the centre of modern farming, being highly rated for its ability to gather large amounts of information in a short space of time.

In crop farming, for example, drones gather information on the crop, environmental and growing conditions, which is essential for making sound management decisions and for predicting crop losses and yields.

Information on plant features such as biomass and height are used to monitor plant growth, while information on soil conditions such as nutrient levels and moisture content, presence of weeds and pests, and environmental conditions such as temperature, humidity, and wind help the farmer to take early, targeted and accurate corrective measures with regards to crop health, irrigation, pest and disease control.

Apart from gathering data, agricultural drones have replaced human labour in chemical application on crop fields.

Using drones is faster, more efficient and safer as it reduces the harmful effects to human labour.

It is not difficult to appreciate why drones have become such an integral part of modern farming. Being able to see beyond what the naked eye of a farmer can see, and to travel the breadth of a farm in a short space of time, drones become the quick, accurate eye of the farmer, providing much-needed information to ensure that the farming enterprise is progressing as expected and to spot any irregularities early.

With drones, farmers are, therefore, able to monitor their farms more closely and easily and to make early, more informed and effective decisions, hence increasing yields, minimising the spread of pests and diseases, reducing losses and increasing incomes.

Farm automation

The farming industry has for some time been gripped by labour shortages, and yet another IoT-based innovation, farm automation offers a profound solution to this challenge and many substantial additional benefits. The benefits of simple farm mechanisation are already widely known and appreciated, including making the farming process easier, increasing farm production and efficiency, and saving time. Technological advancements have taken mechanisation a step further by introducing automated farming equipment programmed to perform specific functions autonomously, without the need of a human driver. This automated farming equipment is designed to perform easy, routine farming tasks in crop and livestock production cycles.

A wide range of new technologies covering a wide spectrum of farming operations such as self-driven tractors, seeding robots, robotic harvesters, milking robots, and automatic watering robots programmed to do a specific function have been developed.

Apart from addressing the critical labour shortage challenges that are already crippling the farming industry by reducing labour needs, numerous benefits of automated farming for the farmer include working faster and longer hours, increasing efficiency and production, saving time and labour costs, reducing human error and environmental damage, and subsequently increased yields and income.

Remote sensors

The need for up-to-date, and accurate information on crop, livestock and fields has led to the development of many innovations, one of which is the remote sensor. Remote sensors are instruments that gather information about farms over time from a distance.

Sensors can either be on-the-ground sensors, as free-standing, handheld sensors or mounted on farm equipment such as tractors and combine harvesters or aerial sensors which are attached to aeroplanes or satellite sensors; all performing the essential function of gathering information on the field, crop, livestock and environmental conditions.

In crop production, sensors are used to gather information such as plant health, and detecting crop stress, loss,  pest and weed infestation, thus providing farmers with a crop, pest and disease monitoring system and with accurate, unbiased information to use in decision-making. In livestock production, sensors are often fitted on the animal, collecting information on the animal condition, making sensors an invaluable monitoring and early warning system used to detect any challenges on the animal early and accurately, making livestock management easier, and more effective and productive.

Genetic editing

Though not a new practice and highly controversial, genetic engineering as a biotechnological advancement has great potential in stimulating agricultural productivity in both crop and livestock management to greater heights.

Instead of using the traditional method of cross-breeding between two similar species to pass on desired traits to the next generation, genetic engineering can involve isolating and transferring specific genes for desired traits, from one to another, creating what is known as genetically modified organisms (GMOs). The world of genetic engineering presents many opportunities to solve the world’s current problems to meet the world’s increasing demand for food with specific characteristics, and crops and livestock that are more suited to their external environment.

Some remarkable advances have already been made in this industry, including the selection of traits such as higher yields, herbicide tolerance, higher growth rates, greater drought, pest, and disease resistance. Consequently, farmers using GMOs get higher yields and incomes, while using less chemicals and herbicides and labour to monitor crops and are more adapted to climate change.

However, this technology does not come without its own challenges, with scientists warning that the genetic alteration procedures may have negative unintended health consequences which may render the technique more problematic than is currently thought.


Recently, blockchain technology, which is widely known for its use in the financial market has been introduced into agricultural sphere. Generally, blockchain technology in agriculture is about generating a decentralised database that shows all the transactions made regarding a specific produce from its origin on the farm to its destination with the consumer.

The database enables a producer or any other concerned party to track the movement of their produce, through different hands until it gets to the consumer. In the same way, a consumer or any concerned party can also trace back produce to the producer, including all intermediaries throughout the supply chain.

This type of technology can have immense benefits for the agricultural supply chain as whole, by improving transparency, quality control and food safety, and providing accurate information about the origins and the processes involved in making a specific product being sold. Blockchain technology, although still new in the agricultural industry, has the potential to grow and change the way that agricultural business is conducted across the world.


The IoT world is growing, and its influence in agriculture is being felt strongly as it seems to be spearheading agricultural technological development on modern farms, offering solutions to some of the most severe challenges that have been crippling the farming sector.

From drones and remote sensors that provide a data-gathering service and drones that make chemical application easier, automated farming that reduces the need for farm labour, and many others, the current agricultural technological revolution has made massive strides in improving agricultural production and efficiency. The new technologies provide sustainable and practical solutions for producers to meet food needs in the face of ongoing climate change and other uncertainties, agricultural risks, and challenges.

Bearing in mind that the innovations are not perfect and may have some disadvantages, there is always room for improvement and fine-tuning to ensure that producers all over the world have access to these new innovations.

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