Under Fu Guohui's gaze, Qi Zheng chuckled and said, "County Magistrate Fu, actually, eucalyptus trees are really not so mysterious. See 1 wool 3 Chinese net"

Fu Guohui was stunned: "How do you say this?"

Qi Zheng said, "As far as I know, eucalyptus is a very water-efficient tree, for example, in the local common eucalyptus, acacia and conifer tree species, harvesting the same biomass, eucalyptus only consumes 51 of coniferous tree species, 81 of acacia tree species, in addition eucalyptus has a particularly strong carbon sequestration capacity." ”

"As for fertilizer consumption, studies have shown that eucalyptus has a strong nutrient utilization capacity, can consume less nutrients and produce larger biomass, and its fertility consumption is less than that of crops and trees such as corn and coffee, and the consumption of eucalyptus on soil fertility is far from huge. ”

"There is no grass under the eucalyptus forest, and this phenomenon does exist. But the reason for this phenomenon is not that eucalyptus is 'poisonous' as many people think and causes other plants to avoid its growth, or that eucalyptus is a 'pump' or a 'fertilizer consumer' that runs out of water and fertilizer and prevents other plants from growing......"

There are probably two reasons for this phenomenon.

First, eucalyptus trees are too densely planted.

Generally, the planting density of eucalyptus trees is about 100 trees per mu. In order to increase their income, many eucalyptus farmers plant eucalyptus trees very densely, even planting 600 eucalyptus trees per acre. The consequence of this is that the canopy density is too large, the light transmittance is poor, and it is difficult for every inch of grass to live.

The other is the overuse of herbicides.

Normally, "shrub forests" grow naturally under eucalyptus forests, but this is something that eucalyptus farmers are not happy to see. In order for eucalyptus trees to grow better, eucalyptus farmers use herbicides heavily. The lethality of herbicides is huge, and the mixed shrub forest will be completely destroyed, leaving no green life. Look at 1 gross 2 lines 3 Chinese net

"Even this method is still gentle. Eucalyptus has the property of having a xyloma growing on the root neck of the eucalyptus tree, which stores nutrients and can germinate new shoots, and even if it is burned, it will not burn the xyloma. Taking advantage of this characteristic, eucalyptus farmers invented a destructive cultivation method called mountain refining. ”

"Refining the mountain" means that after the eucalyptus trees are cut down, a fire burns the slopes of the mountain, eliminating the steps of hoeing and removing weeds, and the ashes after the fire can also give fertilizer to the new eucalyptus trees.

The problem is that eucalyptus trees can survive the "refining mountain" and continue to grow, but the other plants in the mountain forest will only end up in ashes. In the long run, it is naturally difficult to see other plants in the place where eucalyptus grows, which has caused great damage to the ecology.

Speaking of this, Qi Zheng sighed.

In later generations, although the impact of fast-growing eucalyptus on the ecological environment, the views of the academic community are not unified. However, judging from the results of a single study, the three major crimes of eucalyptus "pumping", "fertilizer consumption" and "poisonous tree" have long been cleared.

Many of the consequences of ecological harm are, in the final analysis, the sins of human beings. But human beings always blame man-made disasters on natural disasters, and this is how fast-growing eucalyptus is "demonized".

Fast-growing eucalyptus is actually a good thing, used as a afforestation tree species and an economic tree species, it grows fast and has a wide range of uses.

Thick eucalyptus trees can be seen abroad, while at home, eucalyptus trees are seen in tall and thin statures – because they have not yet had time to grow thick.

For economic reasons, farmers cut down eucalyptus trees when they reach the age of three or four years. Too rapid rotation will cause the land where eucalyptus trees have been planted for a long time to show a staggering amount of water and fertilizer, which is not very efficient and wasteful.

The eucalyptus tree is innocent, but it has been reduced from a "cash cow" to a "demon tree".

"Eucalyptus cultivation itself is not only ecologically sustainable, but also alleviates the country's tight timber supply. However, the planting density of the tree species should not be too dense, the planting time should reach at least 7 years before it can be cut down, and the planting period should also implement the method of multi-species with mixed planting or crop rotation, only in this way can a benign development be achieved. Qi Zheng finally suggested.

Fu Guohui fell into deep thought.

After a long time, he looked at Qi Zheng and asked, "Mr. Qi has said so much, is he intentionally involved in the field of eucalyptus planting?"

"No, no!" Qi Zheng waved his hand and said, "Our Jiagu farming and animal husbandry are still focused on raising pigs, and planting trees is another field." ”

Planting trees is something that should be left to Anyuan County.

"I just think that pig farming and eucalyptus planting can be done with both hands. ”

Fu Guohui's eyes lit up, "Oh, what is Mr. Qi's opinion?"

Qi Zheng said eloquently, "In order to produce high-quality pork without antibiotics and drug residues, we will use Chinese herbal and veterinary drugs throughout the whole process, and eliminate the use of chemicals and antibiotics." Therefore, efforts are made to build an ecological pig breeding industry that concentrates on the research and development and production of veterinary drugs, Chinese herbal medicine planting, pig breeding, slaughtering and processing, etc. ”

When Fu Guohui heard this, he seemed to understand something.

Qi Zheng continued, "Purslane, gentian, honeysuckle, etc., are Chinese herbal medicines that are more in demand for pig raising, and are actually very suitable for planting under eucalyptus forests. ”

Fu Guohui suddenly realized.

Qi Zheng smiled and said, "As long as eucalyptus trees are planted in strict accordance with the standards, there will never be the phenomenon of so-called 'pumping machine' and 'fertilizer consuming machine'." If we interplant Chinese medicinal materials and purchase them from our pig farms in Jiagu Agriculture and Animal Husbandry, I estimate that we can increase our income by 2,000 to 3,000 yuan per mu per year. ”

"In this way, eucalyptus trees can grow longer and be more profitable. In the same way, organic fertilizer from pig farms has a place. ”

"In addition, other understory economies can be developed, such as free-range chickens under eucalyptus forests. In this way, no matter how young you are, the mountains and rivers here are still beautiful, a variety of cash crops are developed in a coordinated manner, and farmers can also make a fortune. ”

The more Fu Guohui listened, the more excited he became.

Indeed, pig farming and eucalyptus cultivation can actually complement each other. Their own ideas can be realized, and the intentions of the senior county officials will not be in vain - no one will benefit if this stalemate continues.

The most important thing is that the pig farms of Jiagu Agriculture and Animal Husbandry are fully invested without government investment. Why can only the development of one industry be supported? It is because Anyuan County's finance only allows the investment of one industry.

It is necessary to borrow money from farmers to buy saplings, to invite experts to provide technical guidance, and to build roads...... If there is no investment in Jiagu agriculture and animal husbandry, it is impossible to grasp both hands at the same time, and both hands must be firm.

Qi Zheng naturally knew this, he blinked at Fu Guohui and said, "County Magistrate Fu, how can you say that Jiagu agriculture and animal husbandry can be regarded as the right time, and it is not reasonable to give more preferential policies!"

Fu Guohui waved his hand proudly, "It's easy to say, for big investors, there is always support, and there are also discounts." ”

Qi Zheng and Li Dong glanced at each other and laughed.

......