Summary
Highlights
A technological wave is set to revolutionize farming efficiency in the next two decades, driven by the need to double food production by 2050 to feed nearly 10 billion people. Farming has evolved dramatically over the past century, and further changes are crucial for future food security.
Innovations include autonomous robotic pickers, drones for precise weed removal using fewer chemicals or lasers, and tiny sensors and cameras to monitor crop growth and alert farmers. The BoniRob analyzes soil pH and phosphorus levels in real-time. Researchers are even planning to grow and harvest an entire hectare of barley autonomously. Companies are commercializing software that analyzes drone-captured infrared images to spot unhealthy plants, and machine learning will improve crop-weed differentiation. Mavrx uses aircraft with multispectral cameras, and PlanetLabs employs CubeSats to monitor farms from space. Analytics software is being developed to manage the vast amounts of new data, and the Farmer’s Business Network combines data for macro-level insights.
Vertical farms grow leafy greens in hydroponic systems within warehouses, providing fresh produce in areas with scarce land. While energy costs are a challenge, artificial lights and climate control allow year-round growth and higher yields. Research into optimal blue and red light wavelengths, as seen in Project Growing Underground, aims to boost photosynthesis. The Open Agriculture Initiative seeks to create a 'catalogue of climates' to grow various crops locally, reducing 'food miles' and CO2 emissions from transportation.
Technology is being applied to livestock to maximize output from each animal. 'Fitbits' for cows in the form of smart collars monitor health and fertility. Researchers analyze cow breath for dietary problems. Thermal imaging cameras detect inflamed udders for earlier mastitis treatment, and 3D cameras measure cattle weight and muscle mass. Microphones in pig pens detect coughs, allowing earlier treatment for sick animals and reducing antibiotic use. Cameras track chicken movements to spot potential problems among thousands of birds.
Farmed fish consumption now surpasses beef. Aquaculturists are developing artificial ecosystems that mimic ocean conditions, allowing inland saltwater fish farms. This closed-system approach, demonstrated by Dr. Yonathan Zohar, produces fish sustainably with zero waste and self-powering mechanisms, potentially saving wild species like bluefin tuna. Another innovation involves proteinaceous fish food pellets made from bacteria that consume methane, oxygen, and nitrogen. Insects are gaining recognition as cheap, nutritious, and environmentally friendly protein sources, with efforts to incorporate them into human and animal feed.
Lab-grown meat, like the first hamburger from muscle cells grown in a Dutch lab and meatballs from Memphis Meats, offers an alternative protein source. While production costs are currently high, it presents a more sustainable and ethical approach to meat production. Genetic modification, particularly with techniques like CRISPR, genomic selection, and SNPs, allows precise editing of genes. Unlike older, less controlled methods, CRISPR mimics natural mutation, addressing some health and environmental concerns. DuPont and Syngenta have used genome selection for drought-tolerant corn strains. The NextGen Cassava project aims to improve cassava breeding in Africa, and similar efforts could boost yields for millet and yams. The C4 Rice Project seeks to engineer rice for a 50% yield increase by mimicking maize's photosynthesis. Genetic alterations are also being used to make pigs immune to illnesses, saving farmers significant costs.
It is crucial to pursue all these agricultural developments to sustainably double the global food supply. Genetic technologies will be essential for overcoming the challenge of feeding a growing population amidst changing climate patterns. Creative scientists, engineers, farmers, and innovators are actively working on these solutions.