Drought development in most northern parts is unfavorable for spring sowing and winter wheat growth

Recent precipitation in the north continues to be low, and drought development in some areas

Since April, the temperature in the eastern part of the northwestern region, north China and the upper part of Huanghuai, Jianghuai and Jianghan has been close to normal or high, and the precipitation is 50% to 1 times less. In addition, there are more windy weather in the month and soil loss is faster. At present, the relative humidity of 10 cm soil in most of the above areas is below 60%, the relative humidity of soil in the northwestern part of the northwestern region, western North China, western Huanghuai, and northwestern Jianghuai is less than 60%, and the relative humidity of 50 cm in some areas is also reduced to 60%. Below, the grievances are poor. The results of agricultural drought monitoring on May 2 indicated that there are light in eastern Gansu, central and southern Ningxia, central Inner Mongolia, north-central Shaanxi, western and southern Shanxi, south-central Hebei, southeastern Shandong, western Henan, northwestern Anhui, northern Hubei, etc. To moderate drought.

Currently, in winter wheat jointing to heading, it is time to be more water, but the east, north, Huanghuai, Jianghuai and other places continued below normal precipitation in the Northwest, the development of drought in some areas, is not conducive to late winter wheat growth and nutrition Yield formation.

At the same time, the drought has also affected the seeding and emergence of spring maize and potato in eastern Gansu, central and southern Ningxia, and parts of Shaanxi , and it is unfavorable for seedling growth of spring maize and cotton such as spring maize and cotton in Shanxi, Anhui and Hubei .

Most of the northern part of the world will still have less precipitation in the next 5 days, which is not good for spring sowing and winter wheat growth.

In early May, most of the northern winter wheat was in the stage of heading and flowering, which was the key period for the formation of yield; spring sowing will enter the end of most spring-sown crops in the seedling stage. It is estimated that in the next 5 days (May 3 to 7), precipitation in the eastern part of the northwestern region, North China, Huanghuai, Jianghuai and other places will be less. Eastern Gansu, central and southern Ningxia, central Inner Mongolia, central Shaanxi, southwestern Shanxi, southeastern Shandong The drought in western Henan, northwestern Anhui, and northern Hubei will be aggravated, which is unfavorable for the growth and development of winter wheat and spring maize, cotton and other crops; 5 to 15 mm rainfall in northwest Shaanxi, north central Shanxi, Hebei and northern Shandong The northern part of the mountain is 20 to 25 mm in the north, and the precipitation is conducive to soil growth, and the drought in some areas will be moderated.

Suggest:

1. In the northern winter wheat area, it is necessary to strengthen the management of wheat fields according to soil moisture and seedling conditions. In the lack of areas, timely fertilization should be carried out to ensure proper wintering of winter wheat and reduce the effects of drought.

2. In areas such as the eastern part of the northwestern region, North China, Huanghuai, Jianghuai, Jianghan and other areas where drought is not relieved, it is necessary to pay attention to adopt various drought-reducing measures to make sowns so as not to delay the agricultural time; the areas that have been sown must be investigated and replanted. jobs.