What are the climatic conditions for burdock growth? What are the effects of too much Rain Water on the growth of burdock

Burdock likes to grow in warm, moist and sunny environment, it has strong adaptability, the temperature of plant growth is suitable between 20 °C ~ 25 °C, and it is more heat-resistant. The demand for water is not high, and there is too much rainfall, which has a great impact on the growth and yield of burdock.

On the eve of Ching Ming Festival, the two major burdock producing areas in China, Jiali District of Tainan City and the return District of Pingtung City, were harvested one after another. however, there was little rain after the planting period in September last year, resulting in poor burdock growth. Farmers want to delay the harvest time and are afraid of meeting the plum rainy season. I sigh helplessly or have no choice but to harvest, and the output of burdock is expected to decrease by 40% this year.

Yang Ruiting, who is in charge of burdock business in Jiali District, explains that after burdock was sown last year, there was too little rainfall, resulting in poor burdock germination rate, few plants, and even the harvest was also affected. Originally, the harvest of one minute of land could be 2.4 to 3 metric tons, but this year it may only be 1.8 to 2.2 metric tons. "it's also very helpless. If you don't harvest it, you can't even harvest inferior products in case of heavy rain. "

Although the upper layer of Jiali production area is sandy soil for drainage, burdock is a deep-rooted plant, and the high water content of the lower soil will still affect the quality of burdock. Yang Ruiting says, "it will smell like a stinky pipe when harvested, but the whole burdock can't be used. At present, more than half of the area of Jiali production area is for export. Yang Ruiting said that priority will be given to meeting the demand for export, and it is expected that the domestic fresh burdock market will be affected by the decline in production in the future.

Another major producing area of burdock in China is in the return area of Pingtung. Because of the local soil characteristics, the taste of burdock is soft, and it is also loved by the domestic market. Wang Shu-hui, a member of the 13th class of vegetable production and marketing class in Pingtung City, said that the soil quality returned from Pingtung belongs to clayey layer soil, and it will harden after absorbing moisture, so if there is heavy rain one or two months after sowing (change: 1 or 2 months), the hardening of the soil is not good for burdock to take root downwards. However, after sowing in September last year, there was too little rainfall in March this year, resulting in poor growth of burdock.

Wang Shuhui also says that at present, 1 or 2 cents of land is harvested, and the size and weight of burdock is only half of what it used to be. "the two sticks collected now weigh only the original one, and almost all of them are S and M sizes. "

Chen Jianxing, the 13 monitor of the vegetable production and marketing class in Pingtung City, explained that in terms of management, he had sprinkled the soil to increase moisture, but he was still unable to match the impact of the environment before he began to harvest. He discussed compensation and measures to reduce production with the channel. "the contract usually says" force majeure ". However, if the government does not release the drought message, we say that the reduction in production does not count as a breach of contract. Chen Jianxing said that for burdock with only one annual harvest, the decrease in rainfall has caused a drop in production, which has a great impact on farmers. At present, it is not sure whether it is in line with the government's natural disaster subsidy program. We can only look forward to the end of the harvest in early May. No heavy rain, reduce losses.