Although there was much noise in Chang''an City, Tang Hao didn''t pay much attention to it.


    For Tang Hao, there is still a lot to do.


    It was time to send off the eldest grandson and his son.


    Looking at the only two cans of tea left, Tang Hao felt robbed.


    In desperation, Tang Hao found the housekeeper and ordered her to continue to buy some fresh tea in the market.


    This fried tea focuses on a fresh tea that needs to be picked from a tree. Only such fresh and tender tea can make good tea.


    As for the East market, most of them are raw tea transported from the south, which has long lost water. The fried tea is naturally very wrong.


    Now in Chang''an, I can only search from the tea garden near Chang''an city.


    Tang Hao sat in the house and looked out of the window. He remembered again that he was going to make this yuan plow that day.


    This time, I no longer have to suffer from the labor. If I delay one more day, the people who work in the field will give one more day''s strength.


    Without hesitation, Tang Hao got up and walked out of the house.


    Not far from the north courtyard where Tang Hao lives, it is the partial courtyard.


    This is the yard where the craftsmen live and where they work.


    Tang Hao asked in a loud voice.


    "Do any of you know some carpentry?"


    Wen Yan, the craftsmen stopped their work and looked at Tang Hao.


    On weekdays, Tang Hao didn''t have a big shelf of aristocratic families. When these craftsmen met the master, they were also very enthusiastic and bowed down one after another.


    "Sir!"


    After a group of people said hello, the three craftsmen, whose clothes were covered with debris, came out and brought them to Tang Hao. When they brought them to Tang Hao, they bowed their hands and hugged boxing.


    "Sir, what can I do for you?"


    Tang Hao looked at the three carpenters and the light fell on the rough palms.


    Just looking at the rough lines on the back of the hand, we know that these three people must be a carpenter''s family and have worked for many years.


    Tang Hao was very satisfied and nodded slightly.


    "I''m going to refit the current straight pole plow. Go and buy a straight pole plow and buy some logs along with it."


    Food is the most important thing for the people. Farming is the foundation of a dynasty, which is not only the food for the people''s life, but also the strong backing for marching and fighting.


    However, the renewal of agricultural tools often makes a large part of the rapid development of farming.


    This Qu Yuan plow was an object in the middle and late Tang Dynasty, and the emergence of this agricultural tool is of great significance to agricultural civilization.


    The curved shaft plow is not an invention, but a few places of the straight shaft plow are transformed, the straight shaft is changed into a curved shaft, the long shaft is changed into a short shaft, and a plow plate that can rotate freely is installed at the head of the shaft.


    On the one hand, the plow frame can be smaller and lighter, which is convenient for disassembly. On the other hand, it is convenient to turn around and turn, the operation is more convenient and saves manpower and animal resources.


    Of course, Tang Hao has seen the shape of the Quyuan plow. People in slightly remote places or hilly terrain in previous generations have already used this ancient way of reclamation.


    Before long, the three carpenters came back with a straight pole plow.


    According to the memory of his previous life, Tang Hao disassembled the heavy straight pole plow, left some useful parts, and then began to transform it.


    Some servants in the house were very curious when they heard that Tang Hao was going to make a new plow.


    When I saw Tang Hao''s model commanding the three carpenters, sawing one section after another, I couldn''t help whispering.


    "Wow! A good straight pole plow is torn down like this. Can it still work?"


    "Yes! I''ve never seen Sir Alex go to the fields. Does Sir Alex know anything about farming?"


    "Sir, who was also a farmer, must have done farming, but it''s something left by his ancestors. It''s certainly not wrong. Can Sir''s transformation be better than what his ancestors left?"


    Most of these servants were skeptical. After all, looking at the broken straight pole plow, they were beyond recognition at this time.


    Tang Hao just smiled and didn''t explain the servant''s question.


    Naturally, he knew that as long as there were no omissions in his memory, the modified curved yuan plow would be able to work, and it would be easier to use than the current straight yuan plow.


    But then again, some things look simple and are not so easy to do.


    Let''s say that this simple curved shaft plow is composed of plowshare, plow wall, policy amount and plow arrow stare. In particular, the fixation of the plow bottom and the pressing contact with the plow head is the top priority, which completely affects the stability of the plow.


    After finishing this key part, it will be night.


    Tang Hao looked at the semi-finished products and felt a faint sense of joy in his heart.


    Nowadays, there are still a lot of uncultivated land.


    Most of these non sown lands are solid ground, and the effect of using a straight pole plow is not very obvious. The main reason is that the plow is too shallow into the soil, and most of them are cultivated manually.


    With this curved shaft plow, it is different. It has good stability and deep penetration into the soil. It can completely solve this thorny problem.


    Thinking that soon, under the sky of the Tang Dynasty, farmers can use the Qu Yuan plow they have transformed, Tang Hao has a trace of pride in his heart.


    Seeing that it was late, Tang Hao did not urge the craftsmen to draw a simple drawing in the study.


    Taking the drawings and explaining the assembly of the parts one by one and the key points to pay attention to, Tang Hao was relieved.