Hua Ying is in urgent need of spirit stones now, so naturally she will no longer press these two unusable exercises in her hands and eat ashes, no matter how many spirit stones she can exchange, she will talk about it first.

"The three spirit stones are tall, I think the materials used in these two exercises are very ordinary, at most... It can only be worth a maximum of two spirit stones. ”

The middle-aged monk picked up the two exercises and pretended to study them, and finally directly cut off a spirit stone from Hua Ying's offer.

"Two and a half pieces."

"This ......"

Seeing that the shopkeeper was still hesitating, Hua Ying simply stopped worrying about the matter, and then asked, "Shopkeeper, do you have any books like farming here?" ”

"Farming?"

The middle-aged monk was slightly stunned, as if he didn't expect the other party to suddenly change the topic to this matter, "Yes, of course, there is a "Spirit Plant Handbook" here in the shop. ”

As he spoke, he pulled another book from the shelf.

This volume is much smaller than the cheats of the exercises, only the size of a palm, Hua Ying took it in her hand and hurriedly flipped through it, and her eyes suddenly lit up.

It was exactly what she was looking for.

"Shopkeeper, how much does this Spirit Plant Handbook cost?"

"Two lower-grade spirit stones."

"That's ......"

Hua Ying bowed slightly, pondered for a moment, and then asked, "Is there a book for alchemy?" ”

"The Complete Solution of the Basic Dan Dao is also two spirit stones." The shopkeeper immediately understood that this was a big business, and immediately found the book "Basic Dan Dao Complete Explanation".

After a while, Hua Ying walked out of this miscellaneous shop with two books in her arms.

This harvest was very rich, and he paid two useless water system exercises and two lower-grade spirit stones in exchange for the "Spirit Plant Manual" and "Basic Dan Dao Complete Explanation", as well as half a lower-grade spirit stone.

The shopkeeper will definitely make a lot of money this time, as long as he sells the two copies of "Qingbo Gong", he will have four spirit stones in his account, and he can earn a difference of one and a half inside and out, plus the profit from the sale of the two books to Hua Ying, it is estimated that he can earn at least two or three spirit stones in this transaction.

This business is not small, it is almost equivalent to the salary of an ordinary monk in the early stage of Qi cultivation for a few months, and it is no wonder that the shopkeeper sent Hua Ying happily when she went out, and she was always welcome to come back next time.

He earned it, but Hua Ying's net worth has shrunk by half, and now there is only half a lower-grade spirit stone left in his body, not to mention that he still owes Wang Gui a spirit stone that has not been returned.

Walking on the street, Hua Ying tightly clutched a spirit stone that emitted blue light in her hand.

This spirit stone is a wood spirit stone, and it contains an extremely pure wood spirit qi. According to the "Spiritual Plant Handbook", ordinary monks planting crops on the spiritual field, in addition to the natural absorption of heaven and earth spiritual energy by the crops themselves, they can also apply wood-attribute fertilizers to help them accelerate their growth.

And this wood spirit stone is one of the sources of fertilizer that can be quite good.

It was precisely because Fang had discovered this when he looked through the "Spirit Plant Handbook" that Hua Ying specially instructed the shopkeeper to find him that the half of the spirit stone must be of wood attribute.

In fact, the so-called half of the spirit stone does not mean that a whole spirit stone should be carved in half for use, but that after being absorbed and used by the monks, half of the spirit stone with pure spiritual energy left is half a spirit stone.

Its source is that some monks either because of daily cultivation or because of emergency recovery of mana, after absorbing a part of the spiritual energy in the spirit stone, it no longer constitutes the spiritual energy content required for a whole spirit stone, but it can still be traded as half a spirit stone.

Of course, if you absorb too much and the aura content of the spirit stone is even less than half, you can only measure the value according to the remaining aura.

After all, most Qi cultivation stage cultivators only earn less than half a spirit stone a month, so even if there is not much spiritual energy left in the spirit stone, it is still very valuable. There are many low-level monks in Dongshanfang City, so the circulation of half a spirit stone is also extremely extensive, and those monks who have a net worth of the entire spirit stone are enough to be called rich.

Half a spirit stone.

Hua Ying pinched half a wooden spirit stone in her hand, and while rushing home, she wondered in her heart how much fertility these spiritual energy could restore to the land in the jade pendant space.

She didn't have much hope, after all, it was only half a spirit stone, even if she could only recover a little fertility, she would be very satisfied.

After the fertility of the land is restored, it is not too late to think of other ways to earn more spirit stones.

After a while, Hua Ying finally returned to her home, the small alley where few people came.

Then, as usual, she broke the crockpot on her head and slipped into the jade pendant space in the corner of the alley.

When she came back again, Hua Ying didn't rush to spread the wood spirit stone into the land, but first looked through the "Spirit Plant Handbook" and studied it carefully.

The book records all kinds of methods on how to make the monks plant spiritual fields more efficiently, including how to loosen the soil, how to plant, how to fertilize, how to take care of daily care, etc., and even how to prevent spiritual pests and insect pests.

Compared with its professionalism, the "Complete Book of Frequent Pesticide Herbs", which Hua Ying has used for a long time, is much more superficial.

Hua Ying read this book with relish, she has liked farming since she was a child, and she has studied a lot before, but with her meager farming experience, it can't be compared with the number of paths that countless farming predecessors have explored in this book for thousands of years.

After only reading the first few articles, she suddenly became enlightened like an initiation, and many things that Tian Shang didn't understand in the past were suddenly opened up by the guidance of this book.

In addition, the book also explains a lot of knowledge about Lingtian.

For example, the spiritual fields of the immortal cultivation realm are divided into good fields and thin fields. Botian is an ordinary field that is cultivated at will in the wilderness, except for the ability to gather the aura of heaven and earth through formations, other places are not much different from secular fields.

The fertile land controlled by the big sects and big families is fundamentally different, and the soil of its spiritual field is not extraordinary soil, but spiritual soil. The spiritual soil itself has extremely strong fertility, which can promote the growth of spiritual grass faster, such as the wild spiritual grass that grows in some hidden places in the mountains and forests, most of which are grown in the spiritual soil.

This kind of soil is extremely precious, it is a kind of soil produced by special spirits, mixed with a variety of grasses, ores, and powdered particles milled from heaven and earth spirits.

Therefore, the value of every mu of this kind of spiritual field is immeasurable, and its ability to continuously produce spiritual grass provides the foundation for the major sects to maintain the immortality of the 10,000-year-old Dao system.

Seeing this, Hua Ying immediately suspected that the field under her feet was the so-called spiritual soil.

What puzzled her was that if it was as recorded in the book, even the world's top spiritual soil could only increase the growth rate of spiritual herbs several times, and there would never be a field like this jade pendant space, which could allow spiritual grass to grow and mature overnight, and even reach the point of ten years and twenty years.

"Could it be that the soil in this jade pendant space is even rarer than the spiritual soil?"

With doubts, Hua Ying casually grabbed a handful of soil on the ground and used the spirit eye technique to investigate it, but after looking at it for a long time, she didn't find anything strange from it, as if it was just an ordinary handful of mortal soil.