What does a plant need from its land?

Brief

This lesson asks you to describe what plants need, such as air, water, light, heat, nutrients and space, and to name conditions that can threaten their survival. The museum offers one part: the practical handbook of an Andalusi farmer who relates land, water and season to plants. The other needs your class will study by direct observation. ¹

What changes when the water or the ground changes?

Picture one plant in two different kinds of ground, or with two different waters. Which of its needs changes first? How could you tell by observing?

Go deeper

In his practical handbook, Ibn Bassal has a chapter on water. It tells apart rain, rivers, springs and wells, then discusses how each relates to plants, to what is left on the surface and to the season ². He does not give all river water one character: the record says he describes how it varies in dryness, moisture, roughness and softness ² ³. The record adds that these are descriptions from an older account of nature, not chemical analyses ².

Think about it

Ibn Bassal did not say that all river water is alike. Why might a farmer who treats every water the same grow worse plants than a farmer who notices the differences?

Into the museum

Ibn Bassal's soil, water and crop assessment: the four waters and the ten kinds of land he separated.
Ibn Bassal: the Andalusi agronomist and where his work was set.
Agriculture in Islam: how a modern author presents farming as a source of food.

Try this

Read the record Ibn Bassal's linked soil, water and crop assessment and list the water sources and land types it names; beside each, write a plant need it might affect.