Cation saturation and nutrient absorption by plants, Biology

Assignment Help:

Cation Saturation and Nutrient Absorption by Plants

The availability of adsorbed cations is not always so easy as the above explanation might suggest. This is because, several factors operate to expedite or retard the release of nutrients. First, there is the proportion of the cation exchange capacity of the soil occupied by the nutrient cation in question. For instance, if the percentage calcium saturation of a soil is high, the displacement of this cation is easy and rapid. Thus 6 milliequivalents of exchangeable calcium in a soil whose exchange capacity probably would mean ready availability. In another case 6 milliequivalents of Ca on the exchange complex in a soil having a total exchange capacity may represent an opposite condition. This is for this reason liming for alfa alfa crop (requires abundant calcium) should exceed 90 per cent
saturation with calcium.


Related Discussions:- Cation saturation and nutrient absorption by plants

Describe st segment depression, Q. Describe ST Segment Depression? The ...

Q. Describe ST Segment Depression? The development of ST-segment depression with exercise is probably the most reliable sign if myocardial ischaemia and appears to be the most

What is reverse osmosis, What is reverse osmosis? Give its one application....

What is reverse osmosis? Give its one application. Which two heart sounds are heard through the stethoscope when placed on the chest? When are these sounds produced respectivel

Cells, true or false. the law of entropy says that all energy is ultimately...

true or false. the law of entropy says that all energy is ultimately derived from the sun

What are holandric genes, What are holandric genes? Holandric genes are...

What are holandric genes? Holandric genes are genes situated in the nonhomologous region of the Y chromosome. Holandric genes condition phenotypes that emerge only in men as in

Marine biology, What are the four characteristics that all chordates have ...

What are the four characteristics that all chordates have at some stage of their lifecycle ?

Muscle, names and locatio

names and locatio

Define excretion of toxin and act as precursor- carbohydrate, Define Excret...

Define Excretion of toxins and Act as precursors? Excretion of toxins: Glucuronic acid, a metabolite of glucose, combines with chemical and bacterial toxins and some normal met

Functions of ecosystem, Ecosystems main functions are physical, chemical an...

Ecosystems main functions are physical, chemical and biological processes. Which is required for if maintenance of ecosystem. Some important function- 1.        Production of bi

Coelomoducts of molluscs, Coelomoducts of Molluscs In Molluscs, like ...

Coelomoducts of Molluscs In Molluscs, like in Crustacea nephridia are absent. But certain of the larval pulmonates do possess protonephridia suggesting that they have been se

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