explain the difference between low-tech and high-tech farmin

high-tech farming
High-tech farming mainly refers to agricultural methods using the latest technology, like hydrophonics and aerophonics. That is to say growing veggies in water or in the air only, without the use of soil. And there’s also orchid farms and ornamental fish. It’s also called agrotechnoloy here.
There are minimal physical inputs to the system, but it is capital intensive since large capital outlay is required to buy specialized equipment, maintenance, training of labour etc. It’s also a commercial farming system, farmers invest in them both for local and export markets; technical know-how is a must, for example, for hydrophonics computers are used to monitor; it is labour-intensive because of the training of lab technicians, scientists, chemists and farm-hands; it uses farming technologiy to increase yields; it has high output and market value because the so-called hygenic (usually pesticide-free) conditions appeal to all health-conscious people out there who don't mind paying more; it is dependent on research and development. Like growing temperate vegetables in a tropical climate, or genetic engineering developing disease-resistant plants with nice colours, or transgenic animals.
High Tech vs. Low Tech Farming
Klinkenborg argues that high tech genetic modification is on track to replace low tech farming methods. While many remain nostalgic for the pastoral farming culture of yore, few realize that having large monoculture crops planted across an increasing amount of our agricultural land has serious implications for our food supply.
For example, different species of rice don't just taste different. Each species reacts differently to climatological variation. As conditions change, a genetically modified mega-chain of rice or corn could suffer under a particular change more dramatically than another. Thus, the failure of just one species to effectively adapt could cause a widespread blight, which, in turn, could lead to famine.
Adaptability in cultivating and harvesting a particular type of seed can be just as important as having access to a diversity of seeds in the first place. I recently observed that the underlying issue is that keeping heirloom seeds in seed banks could become an ineffective means for preserving plant species when farmers no longer know how to cultivate different variations of a crop.