种菜和果树需要知道的 之三 ---- 肥料

Plants grow poorly due to different reasons. In addition to the climate, soil properties and its Ph levels we talked about in the last two videos, there are other reasons like lighting, watering and fertilizer that affect plants growth.

This video will talk about fertilizer, the organic one, which come from animals and plants residues called compost and their excreta called manure. as well as the inorganic fertilizer. It will discuss the 3 elements - Nitrogen, Phosphorus and Potassium, their usage at the different stage of plant grows and how to tell their content proportion from the fertilizer we purchase from the store.

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