The smock mill Goliath in front of the wind farm Growind in Eemshaven in the Netherlands. A windmill is a mill that converts the energy of wind into rotational energy by means of vanes called sails or blades. Centuries ago, windmills usually were used to mill grain (gristmills), pump water (windpumps), or both.
When bat guano is harvested, it is in a powdered form. Plants that can benefit from the use of bat guano fertilizer include vegetables, herbs, ornamentals, and fruit and nut trees.
How to Use Bat Guano as a Fertilizer. As a fertilizer, bat dung can be used as top dressing, worked into the soil, or made into tea and used with regular watering practices. Bat guano can be used fresh or dried.Typically, this fertilizer is applied in smaller quantities than other types of manure.s a fertilizer, bat dung can be used as top dressing, worked into the soil, or made into tea and used with regular watering practices. Bat guano can be used fresh or dried. Typically, this fertilizer is applied in smaller quantities than other types of manure.