The data of the autumn harvest is being counted on the mainland side, and at the same time, the autumn harvest of the North American twin islands and Cape Breton Island has also ended. Albert sent three truckloads of grain back.

Two of the ships, 200 tons of soybeans, were for the war horses. The other ship is 100 tons of wheat. Wheat, needless to say, must be used to make white bread for Marin and others.

However, instead of praising Albert, Marin wrote a letter criticizing him. Why? At the end of last year, due to the rush of time, not much wheat was planted in the North American twin islands. This year, Marin had planned to expand the area under wheat cultivation. However, Albert actually shipped most of the wheat back to ask for credit. This did not satisfy Marin, because Marin believed that a person who really had a long-term vision should give priority to collecting good wheat seeds for the next year, rather than shipping them back for credit. After all, wheat cultivation in the North American twin islands has just begun, and it needs to be vigorously developed.

In addition, the variety of wheat in Europe is also a big problem. In this era, European wheat varieties were inferior and had a long growth cycle, and they were planted in November of the first year and harvested in October of the following year. The growth cycle takes almost a year.

Of course, Marlin has equipped the North American twin islands with potash, which will shorten the growth cycle. But not every wheat plant has the same shortened growth cycle. Some wheat genes are good, and the growth cycle is greatly shortened after applying potassium fertilizer. It is said that the first batch of wheat was harvested in mid-August. At the latest, the harvest will not be harvested until the end of September.

Before, Marlin didn't think about breed improvement. Now, it occurred to him that Albert should have told Albert earlier to collect the wheat harvested in mid-August as seeds. Because, after that batch of wheat seeds is planted, it may be harvested in mid-August if potassium fertilizer is continued, and even, some of the excellent ones, will be harvested earlier. In this way, the wheat varieties of later generations were improved little by little and from generation to generation.

It's a pity that Marin didn't tell him before, so Albert naturally wouldn't have thought of this. Therefore, after the wheat is harvested, the early harvest and the late harvest are basically mixed.

Marin thought about it and gave up. Because, he had a better idea - to send people to the Ming Empire to buy wheat seeds from the Ming Dynasty......

Wheat in the Ming Dynasty was generally either planted in spring and harvested in autumn, or planted in winter and harvested in summer, and the growth cycle was much shorter than that of European wheat. In fact, it is not surprising that the Chinese people applied manure and used plant ash very early. Grass ash is a low-grade potash fertilizer. Although it is not as pure and abundant as Marlin's potash, it is also considered a potassium fertilizer, which can also promote the early maturity of wheat. Improved from generation to generation, the harvest period is naturally much shorter than that of European wheat.

As long as Marin sent a fleet to the East and came into contact with the Ming Dynasty, he could have everything as long as he gave money. Moreover, Marin was not worried that the Ming Dynasty would not accept him. As long as you throw out the big killer of sweet potatoes, you don't believe that the Ming Dynasty will not kneel.

A sweet potato with a yield of 2,000 catties per mu can make the Manchu Qing Dynasty come out of a prosperous era, and it can also make the Ming Dynasty refreshed. Perhaps, the disaster at the end of the Ming Dynasty can survive. After all, the yield per mu of sweet potatoes is more than ten or twenty times that of rice and wheat. As long as there is food to eat, the devil will be willing to rebel.

Now, Marin is waiting for good news from Panama. As soon as Gaurard gained a foothold on the Panamanian side and carved out the road to the Pacific coast by cutting down trees by the black uncles, Marin would immediately send road engineers and a large amount of cement to the Panamanian side to guide and supervise the black slaves in building the cement road. Once the concrete road from the Caribbean to the Pacific coast was repaired, a trade route to Daming could be opened.

However, road construction is a big project and requires a lot of manpower. But Marin didn't plan to send too many construction workers from the mainland, but only planned to send a group of construction workers to guide those black uncles to build roads.

After all, the local poisonous insects and mosquitoes in Panama are so terrible that sending too many local workers can easily cause a large number of deaths. The black uncles are different, they are used to the climate of the tropical rainforest, and they have some immunity to the poisonous mosquitoes and insects in the tropics.

A small number of construction workers were sent by Marin to save their lives by providing mosquito repellent toilet water. If you send too many people over, mosquito repellent toilet water may not be enough.

It's just that, in this way, there are fewer black slaves over there......

So, Marin thought about it and decided to send someone to Portugal again to find the Duke of Coimbra, Jorge. Morality. Lencastre, to which a large order of 5,000 black slaves was placed. The unit price, the old price, is still 40 gold coins. And, as long as the young and strong men.

This is a super large order of 200,000 gold coins, and the territory of the Duke of Coimbra, excluding African trade, may not have so much income from the territory in a year. Therefore, Marin was not at all worried that the Duke of Coimbra would not take this order. He was just worried about when these 5,000 black slaves would be in place......

After all, the Portuguese also needed to place orders with the black chieftains in Africa, hoping that they would defeat their opponents and capture enough prisoners. Moreover, those captives still have to be trained. Otherwise, the disobedient Uncle Black is not good. If it hurts the buyer, it hurts the credibility of the buyer.

So, in order to improve efficiency, Marin directly advised the Duke of Coimbra in his heart - don't be stupid and wait for others to start a war on their own. If necessary, it is entirely possible to pay to encourage the powerful black tribes to take the initiative to attack the weak tribes and capture enough black slaves......

This trick was very common in Africa after that, and the Portuguese colonists also played it very slippery. However, it was only 1505, and the slave trade in Portugal was still in its infancy, waiting for the African chiefs to take the initiative to deliver goods, and had not yet developed to the point of encouraging the cooperative chiefs to take the initiative to go to war. Therefore, Marin gave the Duke of Coimbra a plan in advance, so that he could gather 5,000 black slaves earlier. Otherwise, God knows when the roads in Panama will be repaired.

Of course, it's not enough to count on Uncle Black. Marin decided to use the same tactics to deal with the local Indians in Panama.

For example, a powerful Indian tribe can be co-opted to exchange slaves for goods that interest them, and the local Indian tribes will be lured into waging tribal wars to provide some Indian slaves for road construction sites.

Needless to say, these native Panamanian Indians must have adapted to the local climate and would not die of illness due to soil and water adaptation.

Although, the Indians certainly did not work as well as the blacks. However, after all, there is also the ability to work. One more person, one more strength. The concrete road, which connects the Caribbean Sea with the Pacific Ocean, could also be completed a day earlier. And Marin can also open up the Pacific trade route to Daming as soon as possible......