采用大田试验，以济麦22、藁优2018和石麦22为材料，研究不同施钾量

Using field trials, using Jimai 22, Gaoyou 2018 and Shimai 22 as materials, the effects of different potassium levels on wheat population development characteristics, nitrogen, phosphorus, potassium absorption and distribution were set, and three potassium levels were set, namely K1 (90 kg / 90 kg / hm2), K2 (135kg / hm2), K3 (180kg / hm2). The results showed that: at the level of 135 kg / hm2 of potassium fertilizer, the total stem number, leaf area index and filling rate of the group performed best, and some varieties treated with K3 decreased. At the same time, the dry matter production and accumulation capacity of Jimai 22 is higher than that of Gaoyou 2018 and Shimai 22, which is conducive to the formation of higher output. Adding potassium fertilizer in the range of 0 ~ 135kg / hm2 can significantly increase the absorption of nutrients by wheat plants, which is conducive to the increase in yield. Continue to increase fertilization but not conducive to high yields.

Using the field test, using Jimai 22, Yuyu 2018 and Shimai 22 as the material, the influence of the development characteristics of different potassium-administered wheat population, nitrogen and phosphorus potassium absorption and distribution were studied, and three potassium levels were set, namely K1 (90 kg/hm2), K2 (135 kg/hm2), and K3 (180 kg/hm2). The results showed that the total stem number, leaf area index and grouting rate of the group were the best at the level of 135kg/hm2, and the K3 processing part of the variety decreased. At the same time, Zimai 22's dry material production accumulation capacity is higher than that of Yuyu 2018 and Stone Wheat 22, which is conducive to the formation of a higher yield. Increased potash in the range of 0 to 135kg/hm2 can significantly improve the absorption of nutrients from wheat plants, which is conducive to increasing yield, and continueto increase fertilization is not conducive to obtaining high yield.

Field experiments were conducted to study the effects of different potassium application rates on the population development characteristics, N, P, K absorption and distribution of wheat, i.e. K1 (90 kg / hm2), K2 (135 kg / hm2), K3 (180 kg / hm2). The results showed that the total stem number, leaf area index and filling rate of population were the best at the level of 135kg / hm2 of potassium fertilizer, and some varieties of K3 treatment decreased. Meanwhile, the dry matter production and accumulation capacity of Jimai 22 is higher than Gaoyou 2018 and shimai 22, which is conducive to the formation of high yield. In the range of 0 ~ 135kg / hm ~ 2, increasing K application can significantly improve the nutrient absorption of wheat plants, which is conducive to the increase of yield, but increasing fertilizer application is not conducive to high yield.<br>