Nutrient elements of plants, Biology

Assignment Help:

Nutrient Elements of Plants

Let us first find out the chemical composition of plants and see which element nature has selected to support their healthy growth. Only then we will be able to know the nutritional requirement of plants. As you know a major part of plant tissue is comprised of water. This we can demonstrate by taking a known amount of plant tissue and drying it for a few hours in an oven at a temperature of 65-80°C. If we condense and analyse the vapours coming out from the plant tissue we will find that it is nothing but water. In fact, about 85-90 per cent of the tissue is composed of water. The part of the tissue which is left behind is called the dry matter and typically it is about 10-15 per cent of the original weight.

The dry matter consists mainly of organic compounds. About 90% of the dry matter consists of plant cell walls, primarily cellulose and related carbohydrates. This can be eliminated in the form of gases on combustion at 600°C. The residue now left is the ash which varies in different plant tissue from about 1 per cent to 0.15 per cent of the dry weight. Interestingly, a careful analysis of the ash shows that it contains almost all of the chemical elements present in the soil surrounding the plant.


Related Discussions:- Nutrient elements of plants

Advice on follow up for cardiac patients, Advice on Follow up The pa...

Advice on Follow up The patient should adhere to the follow-up schedule strictly. Generally, one week after discharge, then one month and then 3 to 6 months interval, the

Why roots of many swamp plants have a special morphology, Why roots of many...

Why roots of many swamp plants have a special morphology? The Swamp and The marsh plants in general present supporting roots that ramify from portions of the stem above the gro

How can heart be affect, How can Heart be affect Heart may be affected ...

How can Heart be affect Heart may be affected in two ways. One of the complications of diabetes is autonomic dysfunction which may disturb rhythm of heart beat and may lead to

Intergenic interactions, what are intergenic interactions ? please explain ...

what are intergenic interactions ? please explain with example of cross breeding. and how we calculate the phenotype and genotype. explain epistasis, duplicate genes, supplementary

Salt glands in birds and reptiles, Salt Glands in Birds and Reptiles M...

Salt Glands in Birds and Reptiles Marine reptiles for example, iguanas, estuarine sea turtles, crocodiles, sea snakes and marine birds like the marine teleosts do not produce

Define causes of iodine deficiency disorders, Define Causes of iodine defic...

Define Causes of iodine deficiency disorders? We have studied above that iodine deficiency is a naturally occurring ecological phenomenon that is present in many parts of the w

Locomotion in leech, LOCOMOTION IN LEECH - Leech moves by looping actio...

LOCOMOTION IN LEECH - Leech moves by looping action of its body on substratum. Posterior sucker is attached to base, body elongates, then anterior sucker is attached. Now po

What are some examples of biological activities, What are some examples of ...

What are some examples of biological activities in which osmosis plays an important role? Hemolysis (destruction of red blood cells) by entrance of water, the hydric regulation

Effect on knee extensor muscle during the step cycle, Healthy Person X is w...

Healthy Person X is walking on level ground.  Which of the following is true for the knee extensor muscle of X's right leg during the step cycle? A. The right knee extensor mus

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd