Alien Knights

　　 The technique of "grafting" is not part of Todd's major, but a skill he has mastered in the elective courses he chose in his previous university. At the beginning, he chose that course not for learning, but for the beautiful female teacher who took the elective course. I didn't expect to travel to another world, but this craft came in handy.

　　 When all the materials are ready, Todd needs to do some preparatory work before officially starting the "rose grafting".

　　 One is disinfection. Sterilize the knife and palm with 75% alcohol, and use formaldehyde solution to sterilize the wooden clamp and the binding wire in a ventilated place.

　　 The second is to choose "scion", try to choose rose buds that are free from pests and diseases, no root nodules, one year or less.

　　 The third is to deal with rootstocks. Cut off the branches, leaves and the upper part of the stem of the wild rose, leaving the root and the lower part of the stem, and the cut is a smooth cross section.

　　 The next step is the formal grafting work.

　　 Todd first uses a knife to make a cross cut at a distance of 6 cm from the rootstock to the soil, about 8 mm wide, with a depth just enough to penetrate the bark and reach the trunk; then make a vertical cut under the middle of the cross cut, about 2 cm long. This leaves a T-shaped cut on the bark of the wild rose.

　　 Then select the appropriate spikes from the rose flowers, remove the leaves and leave the petioles, choose a full and full bud, and use a knife to make an incision on the branch obliquely.

　　 Finally, use a knife to open the cortex of the rootstock T-shaped incision, and carefully insert the rose buds into the incision. Immediately after putting it in place, fix it with a wooden clip and tie it with a rope.

　　 Repeat the above process, according to the viability and vitality of the rootstock, up to a dozen rose scions can be inserted. Rose can choose more colors and styles to enhance beauty and shape.

　　 The rose grafting is done here, which is equal to half of the success. Todd kept introducing the attention points of each link to the farmers around him.

　　 And then, it's the turn to cultivate and maintain the grafted product.

　　 First of all, temperature and sunshine. The temperature should be maintained in a relatively stable range, preferably between 22 degrees and 30 degrees. It is best to ensure sunshine for more than half a day every day. Therefore, Todd instructed the farmers to put the grafted rose in the warehouse where the firepit was raised at night, and then move it outdoors during the day when there is sun.

　　 followed by pruning and fertilizing. During the growth of the rose, the side branches, diseased branches and concentric branches must be cut in time to prevent nutrient diversion. As for fertilization, every ten days, the fertilizer is a little bit of broad bean husk, bean cake or chicken pigeon manure, etc., which can make the rose continuously absorb various nutrients such as nitrogen, phosphorus and potassium from the soil.

　　 Finally, a key trick: preservatives. Pour a mixture of low-concentration silver thiosulfate and aluminum sulfate into the soil to extend the blooming period of the rose and increase the vividness and tenderness of the flowers.

　　 In summary, the success of "rose grafting" mainly includes the following key points: disinfection, incision, scion, temperature, sunshine, pruning, fertilizer and preservation. The whole process seems simple, but as long as any link is wrong or not in place, it may cause the whole grafting work to fail completely.

Todd stayed in the large warehouse for only two days. He taught the farmers all the processes and steps of grafting, but the recipes of disinfectant, fertilizer, and antistaling agent were not given. He just left enough finished products. , Declaring that these are the blessings of the Father.

　　 threw all the remaining work to the farmers, and ordered the guards in Muxi Town to guard the warehouse 24 hours a day, and no one was allowed to approach it. Todd can't wait to return to the laboratory because he has more important things to do.

　　 Hudgens told him that the petri dish of "Sutherland Archaea" was completed.

　　 Artificial reproduction of "Sutherland Archaea" is related to his life and wealth, so he can't miss the slightest bit, and other things can naturally be put back.

　　 Walking into the door of the laboratory, Todd finally saw the petri dish he was thinking about. Rather than a petri dish, it might be more accurate to call it a "cultivation furnace".

　　Cylinder shape, copper alloy material, one meter high, the internal structure is divided into four layers in total. The uppermost layer is the gas pipeline, one side of the inlet and the other side of the gas, there is a gas valve on each side to control the flow and pressure; the second layer is a liquid pipe, which can inject solvent downward and divert the solution; the third layer is a culture room for placement For samples or materials that need to be cultured and reacted, two layers of small glass are specially installed here, so that Todd can use "Perspective" and "Eagle Eye" to view the internal state; the bottom layer is the fuel tank, which is used to add charcoal and other flammable Product to heat the entire silo body.

　　 I have to say that the craftsman Huggins found has never disappointed since he refined silver. The craftsmanship of artificial tools is really amazing. This kind of large-scale experimental equipment must take into account many factors such as sealing, diversion, thermal energy and corrosion. Originally, Todd didn’t have much expectations for the craftsman’s finished product. He planned to make supplements and improvements on this basis. Now it seems that UU reading www.uukanshu.com is completely unnecessary. This "cultivation furnace" is completely unnecessary. Can be put into use immediately.

　　 But before officially starting the artificial culture of "Sutherland Archaea", we must first extract enough samples from the body.

　　 Todd changed the original syringe into a blood draw, and then purified, removed impurities, concentrated and distilled the blood drawn, and got a little bit of embers that resembled ashes.

　　 Then put the ashes into the "cultivation furnace", put the charcoal into it, and start heating slowly.

　　According to the "Sutherland Biography", the archaea should be found in the crater, so there are several environmental factors that may be the key to the reproduction of Sutherland archaea.

　　Temperature, oxygen, acid and alkali.

　　 It's like a key has three teeth. Only by adjusting the shape and size of each tooth can it fit into the hole perfectly and unlock the door.

　　According to the environment of the volcano, it can only be estimated that the breeding environment of "Sutherland Archaea" is higher than 100 degrees Celsius, anaerobic, and acidic.

　　What Todd has to do now is to determine how much the temperature should be, the degree of anaerobic (minimal aerobic, facultative anaerobic or anaerobic), and the acidic PH value.

　　 This determination process is long and boring. It requires repeated experiments and observations. It also needs to record and compare experimental data. At the same time, it is necessary to consider every factor that may distort the experimental results.

　　 Finally, in the early morning of the nineteenth day after the experiment began. Fifteen minutes after Project No. 183, the "Sutherland Archaea" in the culture chamber resembled a snowball, condensed into small **** that slowly rotated in the high temperature, and rolled bigger and bigger.

　　 Todd wiped his red eyes and put his face on the glass of the observation hole. There was only one thought in his mind.

　　 The artificial reproduction of "Sutherland Archaea" has succeeded!