Due to variety, soil, fertilization, management and climate, sugar beet yield and pond volume change every year. Especially in recent years, the sugar content of sugar beet has continued to decline, causing people's attention. This paper uses a sugar meter to analyze the relationship between the sugar content of sugar beet and the meteorological changes in production in order to understand the impact of meteorological conditions on sugar beet production, and to take corresponding measures to increase the level of sugar beet production. 1 Sugar Beet sugar content and weather conditions The level of sugar content in sugar beet is not only affected by varieties, soil salt content, sowing date, density, fertilization and field management, but also affected by meteorological conditions. We used Yinchuan Sugar Factory's glutinous amount from 1970 to 1985, and analyzed the relationship between the sugar content of sugar beet and meteorological conditions against the meteorological elements in Yinchuan. The interannual variation of jujube sugar content is shown in the Yinchuan Sugar Factory's sugar content from 1970 to 1985. There are two characteristics: the use of orthogonal polynomials to calculate the trend of sugar content (see Table 1). The trend of continuous decline. The content of germanium was above 17% from 1970 to 1976, dropped from 16% from 1977 to 1953, dropped below 16% in 1954, and dropped below 15% in 1985. From 18.50% in 1978 to 14.34% in 1985, a total of 4.16% had fallen before and after the pond volume. This downward trend mainly reflects the degradation of sugar beet varieties and the reduction of production management, such as the large-scale application of nitrogen fertilizers and the continuous expansion of beet area. Second, there have been changes in the levels during the years. This change is largely due to changes in meteorological conditions. Therefore, this variable is called a climatic crisis. It can be seen from Table 1 that, except for 1978, it generally appears to be about two years high and low. 2 Sugar Beet Sugar Content and Temperature The correlation coefficient between the climatic sugar content and the monthly and ten-day average temperature (see Table 2), the correlation coefficient with the average temperature for April-September r=41, and the correlation coefficient with the monthly average temperature are all negative, of which 5 In June, near the value, it showed that the temperature of the sugar beet seedling stage was appropriate and there was no obvious correlation. In the month of July, especially the correlation coefficient in August was negative, r=0.41, reaching the 10% significance standard, indicating that these three months (especially 7 The high temperature from mid-month to late August will be detrimental to the growth of sugar beets in the middle and later stages. Because of the high temperature, it promotes the premature decay of sugar beet leaves, affecting the accumulation of sugar beet in the later period. Relationship between climatic sugaring and precipitation The climatic sugar content was weakly negatively related to the total precipitation in May (Table 2). Among them, the monthly correlation coefficient reached 0.41, reaching the 10% significance test, indicating that the Rain will reduce the number of hours of sunshine, affect the development of photosynthesis, reduce the accumulation of sugar and reduce the sugar content of sugar beets. From the amount of precipitation in ten days, there are two significant negative correlations, that is, the period from early June to mid-July, mid-August to September. 3 Sugar Beet Sugar Content and Sunshine Hours The sunshine hours from April to September were positively correlated with the climatic sugar content (Tsang has shown in Table 2), and the correlation coefficient was r=27.5. The correlation coefficient was positively correlated in September, with 0.39 in June and 0.55 in September. The total solar radiation and sunshine hours have the same relative trend. This fully explains the effect of sunshine hours and total solar radiation on the amount of plutonium in sugar beet. The entire beet growing period requires longer light, and June is the beginning of the lush period of leafy clumps. Adequate sunshine makes beet grows robustly and roots flourish. In September, it is the period of sugar storage, and the longer sunshine makes the leaves. Increased photosynthesis, more accumulation of sugar. 4 The relationship between the sugar content of sugar beet and the daily temperature difference The climatic sugar content was positively correlated with the daily temperature difference between April and September (see Table 2). The correlation coefficient was r = 38,5, and the months were positively correlated and reached in July. From August to September, it reached 53, which has the same trend as that of sunshine. Therefore, the poor temperature is also the main meteorological factor that affects the accumulation of sugar beet. To sum up, the proper climatic conditions for the growth of beet should be: sufficient sunshine, poor weather, little dry weather, and cool climate. Pump Control Valve,Check Foot Valve,Water Flow Control Valve,Hydraulic Control Valve East Well Valve Co., Ltd. , http://www.shballvalve.com
