Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (18): 71-75.doi: 10.11924/j.issn.1000-6850.casb16080129

Special Issue: 油料作物

Previous Articles     Next Articles

Effects of Irrigation Methods on Soil Water and SaltMigration and Oil Sunflower Yield

  

  • Received:2016-08-29 Revised:2016-09-19 Accepted:2016-09-22 Online:2017-06-28 Published:2017-06-28

Abstract: In order to study the effects of different irrigation and film mulching methods on saline alkali soil moisture and salt migration process and yield of oil sunflower,the water salt control technology system and precision irrigation technology was proposed based on maximizing yield of oil sunflower.We designed two factors, factor one was irrigation methods: drip irrigation and flood irrigation; factor two was the covered way: no mulching and film mulching. The results showed that soil total salt of drip irrigation under plastic film mulching was in low variation, pH value and soil water content changed to a favorable direction of sunflower growth, the yield of oil sunflower from high to low followed an order of drip irrigation under plastic film mulching>flood irrigation under plastic film mulching>flood irrigation under no mulching>drip irrigation under no mulching, the yield of drip irrigation under plastic film mulching increased the yield by8.8% compared withflood irrigation under no mulching. The treatment of drip irrigation under film mulching could reduce soil evaporation, effectively control saltreturn in surface, inhibit salt accumulation, provide a low salt environment for oil sunflower root growth, and improve oil sunflower yield.