The rhizosphere surrounds each root

Function The Casparian Strip Root

The narrow zone of soil surrounding a root is called the rhizosphere fig. 7.13 . The rhizosphere extends up to 5 millimeters from the root's surface and is a complex and ever-changing environment. Growth and metabolism of roots modify the rhizosphere in several ways. First, roots force their way through crevices and between soil particles. Later, when the roots die and decay, they leave open channels that help aerate the soil this aeration may improve the root growth of other plants. Roots also...

Essential elements are required by plants for normal growth and reproduction

Mineral Nutrition Plants Experiment

More than 60 elements have been found in plant tissues. These elements range from those as common as carbon and hydrogen to those as exotic as platinum, uranium, and gold. Are all of these elements essential for growth If so, what functions do they perform Answering these questions has proven to be a formidable task. We must first define what we mean by essential. An element is essential if 1 it is required for normal growth and reproduction, 2 no other element can replace it and correct the...