Can pure green and pollution-free fruits and vegetables supply people's daily needs? Let's take a look.
First of all, a simple answer to the question, pure green pollution-free vegetables and fruits in China's current population base and agricultural productivity is unable to meet the daily supply, now can not meet the supply, still can not meet the supply in the foreseeable future. Even if all the green fruits and vegetables are planted across the country, it is still difficult to meet the needs of daily people. If crop yields are raised to the current level through green means, it is highly likely that the people will not be able to afford it. It can even be said to be driving backwards. Here's the reason.
In terms of yield, the yield of green planting is lower than that of current agricultural planting. I think there should be no doubt about this. However, if you blindly look at the so-called "high profile" sex, you may also see a lot of research results claiming that the output of green pollution-free research can exceed the output of chemical fertilizer planting. For example, as a teacher of the Chinese Academy of Sciences often claimed that the so-called ecological planting, the output is extremely high. However, it only promotes the high yield of ecological planting, but does not tell how much agricultural materials and labor costs are needed to invest such a yield. Agricultural cultivation should also pay attention to efficiency, the current one yuan per jin of vegetables, and through the so-called green planting vegetables need 100 yuan per jin to enable farmers to recover the investment cost, can such green be promoted? And can the cost be reduced in the future? It is not realistic, after all, it takes a lot of manpower and material resources to achieve the same level of output as chemical fertilizer. Therefore, in the foreseeable future, because the output can not be achieved or the cost can not meet the current needs of people, green food will certainly not be able to meet the needs of people.
Second, it is possible to be satisfied in the future, because future transgenic and modern breeding are expected to greatly increase the yield of crops. And can achieve the ability of resistance to diseases and insect pests, without the use of chemical fertilizers and pesticides to achieve high yield. Everyone should have heard of the ability of transgenic technology to realize crop resistance to diseases and insect pests. Now, with the genetic analysis of yield components becoming more and more thorough, crop yield control genes are expected to be cloned one by one. That is to say, it is very possible to achieve high yield through transgenic technology in the future, and crops have the ability to resist diseases and insect pests through transgenic technology, so it is very promising to realize the desire of green and high yield.
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