How Hydroponics Affects On Environment?


Continual drainage, run off and evaporation from soil and irrigation channels are the stumbling blocks of traditional farming in arid areas. Crops also grow slowly in soil requiring long term irrigation. But with hydroponics fertiliser run off is minimized. Whereas soil run off in traditional farming has varying levels of fertiliser present, in hydroponics nutrient is around 500-1500ppm or 99.5% to 98.5% water.


To ensure total ecological control, when nutrient tanks needs to be refreshed, the nutrients can be used to irrigate lawns, gardens or golf courses, as at that strength, as the low level of nutrient can be absorbed without any runoff. This also reduces the need for soil fertilisation where the nutrients are applied. Some farmers use a secondary crop such as tomato plants to recycle the nutrient tank content.


Pesticide use is minimal. Hydroponic plants grow so fast that growth outstrips any damage caused by pests. Because most systems are either plastic lined or off the ground, most crawling and soil born pests don’t pose a problem. Wind breaks and greenhouses prevent flying insect problems. Specially designed barriers prevent crawling insects access to the plants before they get to them.


Soil, nutrient and crop monitoring minimises water and nutrient imbalances that can reduce productivity and impact the environment. The latest hydroponic systems have replaced run-to-waste with environmentally friendly nutrient recycling systems. The latest greenhouse technology blends in with the surroundings. Residue testing ensures that there are no excess residues of nutrients at time of harvest.


By eliminating water waste, fertilizer runoff and pesticide use, hydroponics is the green alternative for future farming.