Fertilization techniques for High yield of Chinese Yam

Chinese yam has extremely high edible and economic value, and it is planted all over the country. It is a crop that needs a large amount of fertilizer. It needs different fertility at each growth stage. In order to improve its economic benefit, the yield is very important. So how to fertilize Chinese yam to achieve high yield, let's take a look at the pro-agricultural network.

1. Characteristics of fertilizer requirement

The fertilizer demand of Chinese yam in the whole growth period is very large, and the growth cycle is long, so I like the organic fertilizer with long effect. In the early stage of growth, due to the factors of air temperature, organic fertilizer decomposes slowly and can not provide sufficient nutrients for growth, so it is necessary to apply available fertilizer to make its stems and leaves grow rapidly. In the middle and later stage of growth, the rapid growth is the time for tuber expansion, and there is a great demand for phosphorus and potassium fertilizer, which is also the period of high incidence of disease. at this time, it is necessary to apply more phosphorus and potassium fertilizer in time, one is to provide growth, and the other is to improve disease resistance and promote growth. to prevent premature senility due to lack of nutrition. In addition, do not apply chlorine when fertilizing. Yam is a crop that avoids chlorine. Chlorine will make yam grow vigorously, resulting in overgrowth, resulting in vines seizing a large amount of nutrients for its growth, while tubers do not get sufficient nutrients for growth. resulting in low yield and quality, easy to break, not resistant to storage and transportation, affecting economic benefits.

2. Apply sufficient base fertilizer

Chinese yam fertilizer is mainly based on base fertilizer, supplemented by topdressing, and the amount of base fertilizer is 70% 80% of the total fertilizer. As mentioned above, Chinese yam has a long growth cycle and requires a large amount of fertilizer, while chemical fertilizers are quick-acting fertilizers and lack stamina, so base fertilizer is generally based on organic fertilizer or completely mature farm fertilizer, with some nitrogen, phosphorus and potassium fertilizer. Generally apply fully mature farm manure 2000-4000kg per mu, with 60-80kg compound fertilizer, or apply about 2000kg organic fertilizer, with 20-30kg urea and 40-50kg phosphorus and potassium fertilizer. The application of base fertilizer should be paid attention to before soil preparation, spread the base fertilizer evenly in the field, turn it deeply and prepare the soil, mix it with the soil or turn it into the soil.

3. Topdressing in time

After sowing, manure can be applied, which can not only provide nutrition, but also increase the soil temperature in spring and make the seeds emerge as soon as possible, while in summer it can reduce the ground temperature and keep the seedlings in a suitable low temperature environment, which is beneficial to the growth of tubers. Using manure and urine fertilizer, or nitrogen fertilizer once during Miaoqi and transplanting, can accelerate the growth of stems and leaves; in the budding stage, when the plant needs the most fertilizer and needs sufficient nutrition to blossom, cake fertilizer or nitrogen, phosphorus and potassium compound fertilizer can be applied, generally 25kg per mu, so that there are enough nutrients for rapid expansion and extension.

The above is the high-yield fertilization technology of yam brought by pro-agricultural network. I hope it can help you. If you want to know more about Chinese yam planting, please pay attention to pro-agricultural network.