How to identify organic fertilizer? A few practical methods to teach you
1 Water soaking method Take a cup, soak an organic fertilizer sample in water, then use your hand to crush the organic fertilizer soaked in the water, stir it a bit and you can intuitively see the raw materials of the organic fertilizer; then let it sit for a while, if the organic fertilizer and water separate within a short time, it means the organic fertilizer has a high specific gravity and contains more soil. 2 Smell method Carefully...
1 Water soaking method Take a cup, soak an organic fertilizer sample in water, then use your hand to crush the organic fertilizer soaked in the water, stir it a bit and you can intuitively see the raw materials of the organic fertilizer; then let it sit for a while, if the organic fertilizer and water separate within a short time, it means the organic fertilizer has a high specific gravity and contains more soil.
2 Smell method Carefully smell the fertilizer to see whether it has an ammonia smell, a manure smell or a sludge smell; good organic fertilizer should have a thoroughly decomposed smell.
3 Hand rubbing method Take the organic fertilizer and rub it back and forth between your thumb and index finger; if it feels gritty, then there is sand or other impurities in it.
4 Microbial strain test method Take a cup and put the organic fertilizer in it, sprinkle a little water (be careful not to soak it, just moisten it), place it in a warm and suitable place; good organic fertilizer will clump together and grow white mycelium, and if you break open the organic fertilizer granules you will see white mycelium inside as well.
5 Potted plant test method Take a potted flower, grab a big handful of organic fertilizer and scatter it directly at the root and stem base of the flower, then water it; good organic fertilizer will gradually grow white mycelium and promote plant growth, while substandard organic fertilizer will burn the seedlings, and the plant will gradually wilt until it dies.
6 Comparative trial method After choosing a good organic fertilizer, when planting crops, leave a portion without applying that organic fertilizer and observe the performance of the plants; good organic fertilizer will show obvious effects in growth, yield and quality.
7 Check whether the packaging is standard and whether it is licensed production (generally licensed production means they do not have their own factory and have no source of raw materials)
8 Try not to buy products with foreign-language packaging, because organic fertilizer is all about reusing waste, and foreign imports are almost impossible.