Water-saving method for planting sunflowers in drought area

Abstract

The invention discloses a water-savingmethod for planting sunflowers in a drought area. The water-savingmethod for planting the sunflowers in the drought area is characterized by comprising the following steps that (1) a germination accelerating treatment is performed, sunflower seeds full of grains without pests and diseases are selected, a sterilization treatment is performed first and then thegermination accelerating is performed at a constant temperature; (2) soil preparation is performed, plowing and rotary tillage are performed on the soil and a chlorothalonil solution and lime powder are applied to the soil, and then a soil planting layer is laid; (3) sowing is performed, the sowing is performed in March to April according to a plant spacing, an acupoint sowing method is used, twogermination accelerating seeds are sowed per hole, and two times of rolling are performed on the soil ina non-planting area by using a light wheel; (4) management at fruiting and flowering stage is performed,aged leaves in the lower portion of the plant are removed after the flowering of the sunflowers, and (5) daily management is performed to maintain the moisture content in the soil, the chlorothalonil solution is regularly sprayed, and a three-nutrient compound fertilizer is applied two weeks before the flowering.

Description

technical field [0001] The invention belongs to the technical field of sunflower planting, and in particular relates to a method for water-saving planting of sunflowers in arid land. Background technique [0002] Sunflower is an annual plant of Compositae, with a growth height of 1-3.5m. It is a flower head, and the flower always faces the direction of the sun. After the middle part matures, it becomes sunflower seeds, which can be used for oil extraction and food. Sunflowers originated in South America, and were gradually introduced to various places for ornamental and economical cultivation. They are currently planted all over the world. Sunflower seeds are rich in linoleic acid, phospholipids and other ingredients, which have the effects of diuretic and anti-inflammatory, invigorating the stomach, lowering blood pressure, etc., and also have the effect of repelling insects and stopping dysentery. The plants have strong resistance to heavy metals and radiation. Although s...

AI Technical Summary

Problems solved by technology

Although sunflowers have strong cold resistance, they need a lot of water from the flowering stage to the fruiting stage, and the water demand accounts for about 30%-40% of the entire planting water. Otherwise, the sunflowers will grow slowly, and even cause large areas of sunflowers to die , its water demand has the characteristics of concentration and regularity; planting in relatively arid areas, it is difficult to ensure a large amount of water for sunflowers during the flowering and fruiting stages, how to solve the water problem during the flowering and fruiting stages has become the key to sunflower planting