23/9/2015 Green House Effect

We now only realise that the climate change will affect the agriculture deeply.It seen that any problem regarding the climate we need to pay more attention in order to protect our agriculture.

Now, we are going to discuss about the Green House Effect which affect our agriculture...





The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be in the absence of its atmosphere and too much greenhouse gases are trapped make the temperature of the planet increases.



The impact of greenhouse effect on agriculture:

• The crop yield increases when the carbon dioxide increases because more photosynthesis can be carry.
• The yield nutrient quality become low although the quantity of yield increases.
• More diseases and more pest problem.
• Affect life cycle of pest and pathogen.
• More rainfall make soil erosion by water while less rain fall cause wind erosion.Both will cause the soil become lower nutrient.

GMO - SAY NO?

GMO

- genetically modified organisms
-living organisms' genetic that has been artificially modified through genetic engineering

what are gmo?

 

list of the products                :

products that are still in development:
-rice
-tobacco
-maize
-coho salmon


The Pros and Cons of the GMO
Pros
- potentially produce higher crop yields, and can avoid hungers problem in most developing countries, because they can produce more and feed more people
-economical, instead of spending cost on seeds.
- reduce the using of pesticides and herbicides, and also the use of mans 
- this engineered plants, can actually withstand with the extreme weather which can avoid the problems of to feed the poor
-its also contain high nutrients and help those that lack in diet for some group population
                            

 Cons
- can cause allergy-ness because some products produced are combined with other genes, which are causes to allergy to some people
- reducing the number of the extinction of that organism
-lead to lower level of biodiversity due to the organisms that are main foods for one animals are no longer available
-might cause new disease for human

                                   

9/9/2015 Aquaponics

It's our first time hearing this term 'aquaponics' and it seems to be interesting.

Aquaponics is the combination of aquaculture (raising fish) and hydroponics (the soil-less growing of plants) that grows fish and plants together in one integrated system. 

Water from an aquaculture system is fed to a hydroponic system where the by-products are broken down into nitrates and nitrites, which are used by the plants as nutrients. The water is then recirculated back to the aquaculture system.

There are three types of aquaponics:
1) raft based aquaponics
2) media based aquaponics
3) hybrid aquaponics

Raft based aquaponics:
This method uses a foam raft that is floating in a channel filled with fish effluent water that has been filtered to remove solid wastes. Plants are placed in the holes in the raft and the roots are dangled freely in the water. This method is most appropriate for growing salad greens and other fast growing, relatively low-nutrient plants.

Media based aquaponics:
In this method, plants are grown in inert planting media (gravel, expanded clay pellets, coir). The media provides both the biological (ammonia based waste) and mechanical (solid waste) filtration, so it requires far less maintenance than raft-based systems. Large, fruiting plants are also grown much more successfully in media based system compared to the raft based system.

Hybrid aquaponics:
This method combines the two aforementioned methods. The media beds become the pre-filter for the solid waste before the water enters the raft systems. This hybrid system style is the focus of the Aquaponic Source’s Aquabundance systems because it provides planting flexibility, high productivity and low maintenance.

Introduction

Hello everyone! We are a group of students who are currently taking Bachelor of Accountancy in UPM Serdang. One of the courses we are taking is Agriculture and Man. It is great that we are creating and having this blog to share what we have learnt during lecture with everyone!

Meet our members~~~
1. Shi Min
2. Suet Yee
3. Vinita
4. Wei Tien
5. Zahlia
6. Jia Er
7. Xin Rui

Girls' power! Haha...

Some of you may not have full understanding on the term "agriculture". So what is agriculture?
We can break the word "agriculture" into two parts, which are "agri" and "culture". "Agri" comes from the Latin word "ager" which means field and "culture" is originated from the Latin word "cultura" which means cultivation or tillage of the soil. In short, agriculture is the cultivation of the natural resources to produce commodities.

Have fun learning! :)