Lentille d’eau Lenteja de agua Wasserlinsen
Soil : aquatic with water temperatures between 6 and 33degC (42 and 91 degF); Depending on species, duckweed thrives in ph levels 5 to 9, but likes the 6.5 to 7.5 range best.
Position : full sun
Frost tolerant : Some species tolerate winters by sinking and laying dormant at the bottom of the water, only to resurface during warmer weather when normal growth can resume.
Sow and Plant : Duckweed needs to be carefully managed, as it is notorious for invasiveness.
Harvesting : Since duckweed contains up to 90-95 percent water, it is bulky and highly perishable when harvested. Collecting and dehydrating it on a large scale can be very cumbersome, time-consuming and expensive.
Feedstock: Duckweed can provide all the protein needs of tilapia and carp — which is why it works great for aquaponics. It is highly recommended for small-scale integrated farming operations that include fish, pigs, chickens, quails, rabbits and ducks.
But the best thing about duckweed is that it is also edible for humans. Duckweed resembles in taste to watercress or spinach. Duckweed can be mixed into soups and salad, or used in sandwiches as a substitute for alfalfa, lettuce, watercress or spinach.
Waterremediation: duckweed acts as a nutrient sink — absorbing primarily nitrogen, phosphorus, calcium, sodium, potassium, magnesium, carbon and chloride from waste matter.
It grows so dense so fast, it creates fast shades over shallow water bodies.
Time to harvest: Duckweed is probably the smallest but fastest-growing plant there is. Grown in ideal conditions, it can double its weight in just 16-48 hours.