The time and frequency of peanut irrigation are mainly determined by the amount of precipitation within the peanut growth period, the distribution of precipitation, the soil moisture content, and the need for soil moisture at each peanut growth stage. The above conditions differ greatly in different flower production areas. Therefore, the irrigation time and the number of irrigations should be determined according to the specific circumstances.

Deep soil (above 50 cm) and good water-holding quality, as long as the sowing is appropriate, the general spring sowing peanut seedling period does not require irrigation, moderate drought is conducive to seedlings take root, there is a certain benefit to the later period of peanut birth. When the soil thickness below 50 cm is less than 40% in the field, it can be properly irrigated. The flowering period is more sensitive to moisture, and when the field moisture content drops below 24.7%, it should be irrigated. When the field moisture content falls below 23.5% in the clams, it will result in a significant reduction in production and should be irrigated. Water should be irrigated when the field moisture content in the fruit-filling period is less than 27.2%. Under drought conditions, the effects of the two irrigation increases are most significant in the period of pod filling and fruit filling.

Shallow soil (less than 30 cm) and poor water retention, the impact of drought on the growth and development of peanuts is even more severe, and the number of irrigations should be appropriately increased according to climatic conditions and the requirements of soil moisture for each stage of growth.

Peanut drought and irrigation during the flowering period can increase the effective flowers in the early stage, increase the seed-setting rate and fruit-filling rate, and increase the yield. The most significant impact on the growth period of peanuts is at the late stage of flowering (27 to 40 days after flowering in middle spring and ripening peanuts) and in the later period of scab (from 66 to 78 days after the beginning of blooming in spring sowing peanuts). During the sensitive period, the drought in these two periods will lead to a significant reduction in peanut production. Therefore, in the late flowering stage and the late drought stage, it is necessary to try to water. Generally, the spring peanuts are sprayed 2 to 3 times, and the summer peanuts are watered 1 to 2 times.

When mid-spring peanuts are mid-fertility and summer peanuts are drought-watered during the mid-to-mid-middle period, watering should be carried out in the morning or late afternoon to avoid rotten needles, rotten fruit, etc. caused by strong light and high ground temperature before and after noon.

YT-S350

YT-S350

YT-S350

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