You can eat rice and potatoes if you have diabetes. However, you will need to eat smaller portions. One medium potato (3 potatoes / pound) is a serving. Find 3 potatoes at the store and put in the scale until it equals one pound. Rice can be a challenge because a little goes a long way for your carbohydrate count.
Temperature and sunlight are more important growth parameters than nutrient concentrations. Duckweed grows across a wide temperature range â between 6oC and 33oC â but weâve determined that it grows best in a range of 18oC to 24oC.n the right conditions, this tiny plant can double its mass every 24 â 48 hours. Close control of the production parameters for duckweed is relatively easy in the small ponds and tanks favoured by backyard food producers.
Problems. Duckweed multiplies rapidly. It may spread from pond to pond on the feathers of waterfowl. When duckweed completely covers a pond it will block light from reaching other plants that live within the pond which in some cases leads to fish kills.Duckweed may be a symptom of other pond problems such as high nutrient levels.Duckweed thrives in nitrogen-rich environments.uckweed can be removed by raking or seining it from the pond's surface. Common duckweed is a very small light green free-floating, seed bearing plant. Duckweed has 1 to 3 leaves, or fronds, of 1/16 to 1/8 inch in length. A single root (or root-hair) protrudes from each frond.