Tea is grown in Guizhou's mountainous regions, and the output of tea is also increasing, which contributes a lot to the local economic development. However, at present, the resource advantages of tea development have not yet been fully utilized in the region, mainly because of the low level of soil nutrient and moisture management in tea gardens. High-yielding tea plantations must be deep and fertile, and the tea tree root system must be developed to fully absorb soil moisture and nutrients. In addition, the tea tree is a sour-sweet plant, and the soil pH 4.5-5.5 is the most suitable. The tea tree with a pH higher than 6.5 or lower than 4.0 has poor growth and even dies. Therefore, the tea plantation soil condition is a key factor affecting tea production. The nutrients in the soil also need to be suitable for the growth of the tea tree in order to ensure the high yield of the tea tree. This requires the use of soil nutrient tester for effective analysis and provide effective scientific support for soil fertigation measures in tea gardens.
China has a long history of farming, and it has long been the application of organic fertilizers. However, in recent years, with the rapid development of agricultural production and fertilizer industry, the structure of fertilizer used in agriculture has also undergone a fundamental change. The soil nutrient tester used soil nutrient tester to measure the soil nutrient in tea plantation in recent years and found that with the increase of chemical fertilizer dosage, especially nitrogen and phosphorous fertilizer, the dosage was doubled, and the supplement of potassium was still mainly dependent on organic fertilizer, resulting in nitrogen, There is a serious imbalance between the ratio of phosphorus and potassium and crop demand. According to the survey, the proportion of average N, P, and K absorption of crops in Guizhou Province in 1997 was 1.0B0.4B1.12, and the ratio of N, P, and K in fertilized materials in that year was 1B0.4B0.36, of which nitrogen was applied as chemical fertilizer. The ratio of phosphorus to potassium is 1.0B0.37B0.12. It can be seen that excessive application of chemical fertilizers seriously affects the balance of soil nutrients.
In recent years, the proportion of nutrient supply and demand of soil nitrogen, phosphorus, and potassium in tea gardens has been seriously deregulated. The proportion of N, P and K nutrient uptake in tea plantation was 1.0B0.4B0.75, while the proportion of N, P and K nutrient in tea plantation was actually 1B0.33B0.02. The difference between the two was extremely disparity. The input of potassium was obviously insufficient, resulting in a gradual deficit of soil potassium pools, and a significant increase in potassium deficiency in the soil of tea gardens. The survey of more than 200 tea gardens in the soil available potassium content of less than 80mg # kg-1 (high-quality and high-yielding tea plantation soil lower limit of effective potassium content) accounted for 59.05%, seriously affecting China's tea production and the development of famous tea production.
Through the soil nutrient tester, the nutrients of the tea garden soil in the production process were measured and analyzed. Only the combination of nitrogen, phosphorus and potash fertilizers could increase the effect of fertilizer production, improve tea quality, and improve product quality. Using the data obtained from the soil nutrient tester for the use of fertilizers, in a high-yielding tea plantation with a dry yield of 150-250 kg per mu, the proportion of nitrogen, phosphorus, and potassium is 2B1B1 compared to 4B2B1 in the case of 20 kg of pure nitrogen. Increase production by 2% to 5%. It can be seen that increasing the amount of potash fertilizer can increase the yield in high yield tea plantations.
China has a long history of farming, and it has long been the application of organic fertilizers. However, in recent years, with the rapid development of agricultural production and fertilizer industry, the structure of fertilizer used in agriculture has also undergone a fundamental change. The soil nutrient tester used soil nutrient tester to measure the soil nutrient in tea plantation in recent years and found that with the increase of chemical fertilizer dosage, especially nitrogen and phosphorous fertilizer, the dosage was doubled, and the supplement of potassium was still mainly dependent on organic fertilizer, resulting in nitrogen, There is a serious imbalance between the ratio of phosphorus and potassium and crop demand. According to the survey, the proportion of average N, P, and K absorption of crops in Guizhou Province in 1997 was 1.0B0.4B1.12, and the ratio of N, P, and K in fertilized materials in that year was 1B0.4B0.36, of which nitrogen was applied as chemical fertilizer. The ratio of phosphorus to potassium is 1.0B0.37B0.12. It can be seen that excessive application of chemical fertilizers seriously affects the balance of soil nutrients.
In recent years, the proportion of nutrient supply and demand of soil nitrogen, phosphorus, and potassium in tea gardens has been seriously deregulated. The proportion of N, P and K nutrient uptake in tea plantation was 1.0B0.4B0.75, while the proportion of N, P and K nutrient in tea plantation was actually 1B0.33B0.02. The difference between the two was extremely disparity. The input of potassium was obviously insufficient, resulting in a gradual deficit of soil potassium pools, and a significant increase in potassium deficiency in the soil of tea gardens. The survey of more than 200 tea gardens in the soil available potassium content of less than 80mg # kg-1 (high-quality and high-yielding tea plantation soil lower limit of effective potassium content) accounted for 59.05%, seriously affecting China's tea production and the development of famous tea production.
Through the soil nutrient tester, the nutrients of the tea garden soil in the production process were measured and analyzed. Only the combination of nitrogen, phosphorus and potash fertilizers could increase the effect of fertilizer production, improve tea quality, and improve product quality. Using the data obtained from the soil nutrient tester for the use of fertilizers, in a high-yielding tea plantation with a dry yield of 150-250 kg per mu, the proportion of nitrogen, phosphorus, and potassium is 2B1B1 compared to 4B2B1 in the case of 20 kg of pure nitrogen. Increase production by 2% to 5%. It can be seen that increasing the amount of potash fertilizer can increase the yield in high yield tea plantations.
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