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soil series

A group of soils having horizons similar in differentiating characteristics and arrangements in the soil profile, except for texture of the surface layer.

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Re: What is salt stress?

is anybody know when soils in arid regions of the world are irrigated, solutes from the irrigation water can accumulate and eventually reach levels that have an adverse affect on plant growth. Current estimates indicate that 10 - 35% ...

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by Makyhg
Wed Nov 16, 2011 7:26 am
Forum: Ecology
Topic: What is salt stress?
Replies: 8
Views: 19475


Potassium is an essential constituent for plant growth and it is found in most soils. Calcium regulates transport of other nutrients into the plant and is also involved in the activation of certain plant enzymes. Magnesium is an important part of chlorophyll, a ...

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by Falko
Mon Aug 29, 2011 8:19 am
Forum: Botany Discussion
Topic: Mineral Nutrition In Plants
Replies: 8
Views: 14544

Re: Experimental evidence for evolution

... evidence of genetic instability are there. The main problem is that we know very little of the life of bacteria outside of the lab. take a gram of soils, and you will be able to identify 1000's of bacterial species . But bacteria can acquire DNA from dead cells (whatever they were) or from phages, ...

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by canalon
Thu Oct 21, 2010 8:43 pm
Forum: Evolution
Topic: Experimental evidence for evolution
Replies: 103
Views: 179673

Ask for fulltext

... Thanks a lot. Here they are. 1.Understanding molecular mechanisms for improving phytoremediation of heavy metal-contaminated soils.Critical reviews in biotechnology. 2010,30(1):23-30. 2. Genes Induced in Response to Mercury-Ion-Exposure in Heavy Metal Hyperaccumulator Sesbania ...

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by jacksonchen
Sun Aug 22, 2010 7:32 am
Forum: PDF & Doc Files
Topic: Ask for fulltext
Replies: 0
Views: 2552

What different cultivatable soil bacterial species are there

This is late, I know but I'll give some comments anyway. There are plenty of Actinomycetes in different types of soils. pH 6 soil can be found in a typical garden soil, even lower pH can even be found forest soil where a lot of detritus are decaying. Some free living Nitrogen fixer ...

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by mkwaje
Fri Jan 29, 2010 11:59 am
Forum: Microbiology
Topic: What different cultivatable soil bacterial species are there
Replies: 1
Views: 1760
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