High-ridge film-mulching and drip-irrigation salt-inhibiting planting method for sunflowers

Abstract

The invention provides a high-ridge film-mulching and drip-irrigation salt-inhibiting planting method for sunflowers, and belongs to the technical field of crop planting. In order to solve the problems that the yield is reduced due to drought, weak growth vigor and the like caused by difficulty in seedling emergence and seedling protection of conventionally planted sunflowers in Hetao irrigation districts and difficulty in irrigation due to salt damage dead seedlings in the growth period, a ridging and film mulching machine is innovatively adopted to complete furrowing, ridging, film mulching and drip irrigation tape laying operation at a time, plastic films cover the bottoms of furrows to ridge surfaces, seeds are manually sown on the ridge surfaces, In the growth period, drip irrigation is performed for salt leaching and water supplementing, and the high-ridge film-mulching and drip-irrigation salt-inhibiting planting method for the sunflowers is formed. According to the method, soil salinity is redistributed after high ridges are formed, a low-salt environment is provided for sunflower growth by combining drip irrigation and drip washing of root layer salinity in the sunflower growth period, crop water absorption is facilitated by drip irrigation, root growth is promoted by combining irrigation and fertilizer dripping, and plants are good in growth vigor and high in yield; the purpose of salt inhibition in moderate and slight saline-alkali soil can be achieved, and the seedling protection rate is increased; and the method makes a great contribution to high-quality development of sunflower planting in the saline-alkali soil.

Description

technical field [0001] The invention relates to the technical field of crop planting, in particular to a method for planting sunflowers on high ridges and covered with film to suppress salt by drip irrigation. Background technique [0002] Sunflower is an important oil crop and economic crop in the Inner Mongolia Autonomous Region, and an important part of the agricultural economy of the Autonomous Region. The Hetao Irrigation District has a dry climate, low rainfall and high evaporation, resulting in serious soil salinization. Planting sunflowers in conventional ways in medium-slight saline-alkali lands leads to physiological drought, weak growth, low yield, and poor benefits. Due to problems such as easy lodging and dead seedlings during the sunflower growth period in the Hetao area, sunflowers are planted without irrigation during the entire growth period in production, and the sunflower production during the budding period and later growth period is seriously reduced du...

AI Technical Summary

Problems solved by technology

Conventional planting of sunflowers in medium and mild saline-alkali lands leads to physiological drought, weak growth, low yield, and poor benefits

Due to problems such as sunflower irrigation during the growth period of the Hetao area is easy to lodging and dead seedlings in saline-alkali land, sunflowers are planted in production without irrigation during the entire growth period, and sunflower production during the budding period and later growth period is seriously reduced due to salt damage

Images