There are two snow huts outside the tree hole, one is a little shorter, and the other is a relatively high snow hut that has just been made, with two layers of protective covers, the wind and snow can't blow in at all, and the fire is burning day and night, and the temperature is above zero as a whole.

There is also a tent sewn of animal skins at the head of the house.

Inside the tent was Feng Jiuqing's experimental cabbage, which was planted in a bag sewn from animal skins, which was filled with nutrient soil that she had prepared herself, and placed on a shelf.

At the bottom of the shelf, there is charcoal, all of which is top-quality charcoal, without any smoke at all, and the temperature is constantly raised to supply the cabbage to grow.

The temperature here is more than 10 degrees Celsius.

Feng Jiuqing's head was sweaty, when he came out of the cabbage experiment greenhouse.

Xuanyu just came in with a basket of fish, watched her climb out, and smiled gently: "Has it sprouted?" ”

"Nope!" Feng Jiuqing looked up at him with a smile: "It's only been planted for three days now, and it usually takes about a week to sprout." ”

"Come here." Xuanyu put down the basket and looked at her and said softly.

"What are you doing? Reward me? Feng Jiuqing ran over happily, the height difference was a problem, so he could only look up at him.

"It's all dusty." Xuanyu's slender fingers wiped the ash off her face little by little, and smiled teasingly: "Are you lying on top to watch?" ”

"I just added some carbon, and the carbon on the outside should be almost burned!" Feng Jiuqing smiled like a fool, quietly feeling the temperature of his fingertips: "When we burn more carbon, we won't need this wood, the smoke and dust will be so big that we will die, if we burn the whole ice season, we will get pneumoconiosis." ”

"I'll take a look." Xuanyu wiped the last gray spots off her nose.

"I'm with you, I'm watering them there, the side humidity, it's all suffocating, go out to breathe." Feng Jiuqing grabbed Xuanyu's hand and raised his heel.

Where charcoal is burned.

Right next to the huge tree to the left of their house.

The branches used for charcoal burning are all cut from the trees, and the quality of the charcoal burned can definitely be regarded as high-quality charcoal.

At this time, dry firewood is not easy to find, and if the wet firewood is burned at home, it will be so smoked that people can't open their eyes.

Two huge mounds of earth bulged up like burial bags, inside are burning wood, and the wood in this mound, after a series of reactions, is burned out because of lack of oxygen, and the rest is charcoal.

Because of the heat, the snow will melt immediately when it drifts on top, and the thick layer of soil has begun to crack, and it has been burning for a day and a night, and at most at night, it should be burned.

After looking at the progress of charcoal burning.

Feng Jiuqing took Xuanyu to the river for a walk.

"Xuanyu, let's settle down here in the future!" Feng Jiuqing looked at the vast land in front of him, only to feel that his heart was extremely open-minded, and his breathing was smooth: "This is a big river, you can fish, and it is convenient to use water." ”

Xuanyu nodded, and her voice was gentle: "Okay." ”

Feng Jiuqing let go of his hand and began to plan, pointing to a large forest on the left side of his house: "That forest, cut down, after reclamation, you can plant cabbage, grow yams, next spring, we will definitely be able to find other plant seeds, wheat, corn is the best, millet and rice are fine, soybeans, sweet potatoes, potatoes, these are all food crops, can fill the stomach." ”