The Ishikari Plain is 4,000 square kilometers and has a wide network of water, making it ideal for cultivating rice in paddy fields. In fact, "Ishikari" means "winding river" in the Ainu language. The Ishikari River, the largest river in Hokkaido, has plenty of water to meet the needs of paddy field irrigation.

Although the yield per mu of rice is generally much higher than that of wheat, the labor intensity of paddy fields is also incomparable with that of dry fields. For example, if you plant wheat, you just need to sow it with a cocoon strip and you're done. At most, let's get rid of the weeds later. At the same time, pull out the extra seedlings that are not growing well, leaving only the vigorous wheat seedlings. For these jobs, the labor requirements are not very large. With tools such as a cocoon cart, a Prader plough and a wheat samarium, it is still possible for a family to plant hundreds of acres of land.

However, rice paddies are different. Not to mention anything else, the labor intensity of rice planting alone is not comparable to that of dry land. For rice planting, Marin couldn't think of any simple machinery that could help with rice planting. Because, even if the rice throwing machine in later generations, the effect is not so good. Of course, better rice transplanters came later. However, Marin has not seen it. Because, the older generation of farmers in his hometown in his previous life insisted on planting rice by himself. Mainly, the local family has only a few acres of land, and the labor intensity is not large, and it will be planted in a few days. In addition, there are many illiterate people in the older generation, and the rice transplanter can't handle it. And the younger generation has gone to work in big cities. Therefore, only some of the original ways can be retained. However, when rice is harvested, harvesters are used. Moreover, they are all small harvesters using Japanese technology. In the early days, it was expensive imported harvesters such as Kubota, but later there were many copycat brands in the country with low prices, and then, well, no need to talk about it......

In addition, wheat samarium does not seem to work well in harvesting rice. Mainly, wheat straw is not quite the same as rice straw. Wheat straw is relatively brittle, and when harvesting, there is a crisp sound of straw breaking. Rice straw is more resilient and more difficult to harvest. The samarium knife can easily cut the wheat straw, but it is a bit difficult to deal with the rice straw. Because of the good toughness of straw, straw is often used in rural areas to weave straw ropes, which are very strong, and straw can also be used to weave very strong straw curtains. Wheat straw is more brittle and has a high degree of hollowness, which is not as effective as straw.

Therefore, whether it is transplanting rice or harvesting, it is much more troublesome than wheat and requires a lot of manpower. Fortunately, whether it is ancient China or ancient Japan, there is no shortage of manpower. The reason why Japan has a population of 17 million in this era is inseparable from the promotion and cultivation of rice.

It is also because of the high labor intensity, so Liver Fu Shuizi believes that it is best for a farmer to plant 30 acres of land, and it is a little difficult to plant 50 acres. Moreover, there must be ploughing cattle suitable for paddy fields.

In desperation, Marin came up with the idea of making leather armor out of leather and exchanging cattle with the Japanese daimyos. But because of this, I also happened to learn that there are extremely rich deer skin resources in the Northeast, and I have gained a lot.

Moreover, when he was thinking about how to build a Hokkaido tannery, using the old tattered leather used by the Northeast people to process leather armor into leather armor and sell it to the Japanese daimyos, Marin suddenly thought of one thing - it seems that those broken leather scraps cut from leather armor also have a purpose, and they are of great use......

What is it used for? Can be used as a lining for musketeers to wrap lead bullets. At present, when the musketeers of the North Sea Kingdom were reloading, most of them wrapped the lead bullets in grease-soaked linen and pressed them into the chambers. Alternatively, wrap lead bullets in oiled paper and press them into the chamber.

However, when it comes to publicity, Marin always advertises the use of deerskin and linen soaked in oil. Why? Because of the cost!

Many of the bullets used by the Beihai Kingdom were wrapped in oiled paper containing gunpowder and pressed into the barrel. However, this kind of oil paper customization technology is a military secret of the Beihai Kingdom, and it is not leaked casually, and this kind of oil paper package will not be sold to the outside world.

In fact, oil paper in the North Sea Country is very cheap. Because Marin has a large paper mill on Cape Breton Island in Canada, and it can also be soaked in whale oil to process a large amount of oiled paper.

However, these things are all for domestic use and will not be sold to the outside world, so as not to enhance the strength of the opponent. And the opponents will not learn from the Beihai Kingdom to use oiled paper to order gunpowder and wrap buckshot. Why? Because the cost is ......

At present, Europeans only know how to use rags and fishing nets as raw materials for Cai Lun's papermaking technology, and the cost of papermaking is very high. Originally, at the end of the 18th century, the French missionary Jiang Youren infiltrated the Qianlong court, stole the Chinese papermaking, and used detailed pictures and texts to introduce the Chinese papermaking technology, and sent it back to the French court, which greatly promoted the development of European papermaking.

Speaking of which, the ancient French were also quite shameless. The Venetian glass mirror technology was stolen by the French in a way that was stolen. The art of papermaking in China, as well as the manufacture of porcelain, were stolen by French missionaries......

In other words, in addition to Marlin's application of modern papermaking technology and the use of wood to make paper in Canada, other European countries can only use expensive paper made by Cailun papermaking. In addition, because there was no cheap whale oil, they soaked the paper in flax oil to make oiled paper, which was also quite expensive. Therefore, Marin's Beihai army used oiled paper to order gunpowder and used it to wrap lead bullets, and other countries would not have adopted it even if they knew about it. Without him, they don't have cheap oiled paper......

The cost of using oiled paper is much higher than that of wrapping buckshot in deerskin sheets, how to do it? Marin also thought of this and decided to ask the Hokkaido Tannery to pack up and transport back the remaining deerskin pieces used for tanning. Then, sell it to other countries and let their musketeers use it to wrap lead bullets...... Of course, it will also be sold to domestic hunters who try out arquebuses......

For domestic hunters, it is impossible for Marin to provide them with oiled paper packets for gunpowder, which is a military supply. Therefore, it is only right to provide them with the deerskin pieces processed by the Hokkaido tanneries to wrap in buckshot.

In this way, the tannery deerskin horn can be used in exchange for money, and at the same time, the Beihai Kingdom does not need to provide military oil paper bags to the people. Of course, at the same time, you can also make a wave of foreigners' money with these buckskin horns......

After listening to Marin's idea, Kohler, Suha, and Glock, who was newly elected as the governor of Hokkaido, were extremely shocked by Marin's genius idea - Nima, even the leftovers of the tannery can be used to make money, what else can you not use to make money?

And the three of them all rely on Marin to live, so naturally it was another sycophant, which made Marin extremely comfortable. He doesn't have any aversion to patting sycophants, as long as he can do things well, what's wrong with slapping a little sycophants when he's fine? This is the way people live. If they were all like Wei Zheng and found fault all day long, and changed to Marin, they would be so angry that they wanted to dig Wei Zheng's grave. Nima, it's shameless to be the boss? Being the boss but being scolded by his subordinates all day long is a personal grievance......