Comparative advantage for Vietnam's agriculture?

Comparative advantage for Vietnam's agriculture?
GPs Dear uncle, brothers and sisters.
On This agricultural forum members have enough from your doctor 50,60t to 8x, 9x, so allow me to call members of the people and proclaimed in the post for easy I say (I was born in 1988). What doctors wish disrespectful, sympathy notes. ^^
I wish to raise issues and ask the views of people about our Vietnamese agriculture. This problem is relatively large, but considering that it affects each person engaged in agriculture in our country.

First of all, probably should talk a bit about the so-called comparative advantage. If anyone has learned through economics is surely no need to explain, but here I would like to explain briefly so that people understand. Comparative advantages of a country when that country is concentrating production in one or a few products that they have the ability to produce the most, least cost and therefore will yield the highest compared to other countries . Understand simply that people will trip electrician installing electrical repairs, Trip builder will build, they focus on the job that they are capable of doing best though electricians and builders can build there Power editable matter.
So contact our agriculture in Vietnam. Everyone can see that Vietnam're fertile, silver sea yellow forest (small learned from that!), So why compared to many other countries, we are still poor. Both in terms of productivity and poor product quality.
Thousands of trucks carrying watermelon, lychee ... exports to China cheap price, do not be thrown away less. Rice exporters are 2nd in the world, so that Thai rice is still sold a lot in the market, supermarket Vietnam. The fruits of our famous delicious, quality, but to export it is very difficult, the lot is removed, some due to poor design, some of the residues of plant protection substances ....

The fact that happened?
If learning about agriculture say then surely everyone knows Israel. They are countries with climate, desert land, in general terms we all naturally lose face. Yet the yield from crops to their livestock than do dozens of times again. It is due to technical factors.

Vietnam today who still do most of the agricultural farm and sell. However the style of small business, not a lot of large farms. These giants focus on this sector emerged a few people. The link between the production area is almost not there, just worry what anyone producing their goods sold rather less interested in other areas of production, consumption is. Add to that a lack of agricultural knowledge or is due to individualism that farmers do not guarantee safety. The vegetables you eat, the clean water, for sale, spraying, fertilizing with impunity, as long looked delicious, sold, how the customer was ignored! That is because human perception.

So any plant or animal is a comparative advantage in agriculture Vietnam?
My lychee famous delicious, exports to China from very long. Yet there has been many places half dead with this type of agricultural product.
Recently many people have seen growing Macca "future" should have been breeding and growing in large numbers. This morning I just read one article warning about the massive plant their fields.

Thus, we know to focus on certain agricultural products to sustainable development? Sustainability here means output (to smooth export) and not only my life but my life, my life is still good living with his job.
The uncle, the uncle and siblings have experience in the agricultural sector can provide the perspective of individuals who are not? Europe is also sometimes question contributed to building our farm more prosperous.
Thank uncles and siblings.