Lao Zhang started with the preparation before sowing. Choosing the right seed potatoes is crucial, he said. With years of planting experience, Lao Zhang knows the requirements of seed potatoes very well - he will choose seed potatoes with bright appearance, no disease spots and no mildew, and enough budding eyes. "These are important signs of good seed potatoes!"Lao Zhang said while gesturing in front of the camera. Then he smiled and shared the secret, the seed potato should be cut to 30-50 grams, which is easy to handle and carry, and is conducive to growth. 
When it comes to the important step of dressing seeds with plant ash, Lao Zhang Mei dances, full of joy of success. He explained in detail that plant ash not only contains potassium and other nutrients, which can be used for seed potatoes, but also has a bactericidal and antibacterial effect, which can prevent the occurrence of soft rot diseases. "What a trick!"Lao Zhang couldn't help but admire. He vividly described that the plant ash can also soften the soil, enhance air permeability, and create a good environment for seed potatoes to grow. In particular, the use of plant ash can significantly promote germination and accelerate the emergence of seedlings. "I've tried it and said yes!"Lao Zhang added with a smile that through his years of planting practice, he has fully proved the many benefits of plant ash dressing. Lao Zhang next emphasized that nitrogen fertilizer must not be applied in potato planting. He said seriously that too much nitrogen fertilizer can cause the stems and leaves to grow extremely vigorously, but the large amount of nutrients absorbed is wasted on the long stems and leaves, and the final tuber is poorly developed. To prove this, Lao Zhang combined vivid examples to describe several planting friends who had poor potato yields due to partial nitrogen fertilizer. "My old friends are living teaching materials!"Lao Zhang sighed bitterly. 
In contrast, Lao Zhang insisted that fertilization must be reasonable. He explained in detail the best fertilization methods according to the changes in the nutrient requirements of potatoes during different growing periods. "This is the scientific result of years of comparative trials!"Lao Zhang is full of confidence. In addition, because potatoes are chlorine-resistant crops, Lao Zhang sternly warned against using chlorine-containing fertilizers such as potassium chloride and ammonium chloride, which will seriously reduce yield and quality. When necessary, Lao Zhang also suggested the appropriate use of chlorquat to inhibit excessive growth. Facing the camera, Lao Zhang looked focused and his tone was resolute, proving the importance of reasonable fertilization. The third "fear" that Lao Zhang then mentioned was not cultivating soil. As a "veteran" of potato cultivation, he emphasizes the unique use of soil. Lao Zhang elaborated with a smile that after the emergence of seedlings, the soil should be cultivated three times, and the depth of the soil should be gradually shallow. 
He described how the soil is stacked layer by layer provides a cooler and more comfortable environment for the potatoes to grow in the underground part. "Potatoes like to be 'cool'!"Lao Zhang couldn't help but interject to remind. In addition, multi-layer loose soil cultivation can also significantly improve soil porosity and air permeability, which Lao Zhang said is particularly important to promote the expansion and respiration of potato pieces. When it comes to preventing the potato chunks from being exposed, Lao Zhang can't help but smile with satisfaction. He pointed out earnestly that this important effect of soil cultivation can prevent the greening of potatoes from affecting the quality and value of commodities. "Growing potatoes and cultivating soil is the icing on the cake!"Finally, Lao Zhang confidently summarized that through his own verification for many years, the effect of this ordinary method of soil cultivation is indeed remarkable, and it is definitely a great trick for potato cultivation!The fourth "fear" that Lao Zhang mentioned next is that the flowering and fruiting of potatoes are not manually removed in time. He first pointed out with a solemn face and a serious tone: potato flowering requires a lot of nutrients, and this part of the nutrients should be used for the accumulation of underground potato pieces, and the flowering and fruiting undoubtedly form a competitive relationship with the development of potato pieces. 
To illustrate this point, Lao Zhang gave the example of several high-yielding old farmers who were busy with other things and missed the best time to remove potatoes from flowering. As a result, the plants bear too much fruit and the underground tubers develop poorly. "Those old friends are miserable!"Lao Zhang couldn't help but sigh. In contrast, Lao Zhang emphasized that it is necessary to manually remove and cut off the potato buds in time when they bloom"Nutrient competition"of the source. He smiled and shared the secret, in addition to flowering, but also to pay attention to the timely removal of small potato fruits. This allows more nutrients to be allocated to underground tuber development, significantly increasing yields. "The effect of this trick is really immediate!"Lao Zhang confidently summarized that through his own verification, as long as the flowers and fruits are picked in time, the yield of potatoes can be increased by more than 20% on average. In the end, Lao Zhang devoted himself wholeheartedly and summed up to the camera earnestly: "As long as you remember to avoid these five 'fears', you will definitely be able to grow a good potato with a large size and high yield!"At this, he couldn't help but spread his hands and smile. Years of planting experience make Lao Zhang convinced of this. 
In order to make the audience feel more intuitively, Lao Zhang counted his average potato yield data in the past few years. He described with relish that after strictly following the "five fears" cultivation method, the yield of potatoes has increased significantly compared with other growers, and the average harvest per furrow is more than 20%. "Facts speak louder than words, and data is insightful!"Lao Zhang is full of confidence. Finally, the host also spoke highly of Lao Zhang's potato cultivation experience. He earnestly pointed out that Lao Zhang's "five fears" method summarized and refined based on rich production experience is really the "golden key" for high-yield potato cultivation. The host sincerely recommended to the audience that these experience and skills are worth learning Xi reference for potato cultivators.