Абстрактный

Effects of Potassium Deficiency on Growth of Pakchoi in Cold and Dry Areas

Shi-Heng LI1*, Zhi-Wei ZHANG1, Wei-Ming LI2, Ling-Hao BU1

Background: To reveal the effect of potassium deficiency on the growth and development of pakchoi in cold and dry areas.

Results: The effect of potassium deficiency on the growth status of P. pakchoi in cold and dry areas was significant. P. pakchoi treated with potassium-free nutrient solution had the best growth, the largest number of leaves, leaf length, leaf width, leaf area, root length and weight; P. pakchoi treated with 100% potassium deficiency had the smallest plant, leaf length, leaf width, leaf area, root length and weight P. pakchoi treated with potassium deficiency 50% had the middle growth and development status, and the root ratio was the smallest in d 21.

Conclusion: Potassium can effectively promote the growth and development of pakchoi in cold and dry areas; increase its root length, leaf width, leaf area, weight, etc. The quality of the upper part and the underground part of d 21 of pakchoi treated with deficiency is the most different.