Effect Of Irrigation Volume And Nitrogen Fertilization On Yield And Quality Of Safflower

Safflower (Carthamus tinctorius L.) is a1-2years compositae born herb, to take medicine,is a traditional big chinese traditional medicine. Safflower has the effects of promoting bloodcirculation, restoring normal menstruation, scattered stasis pain, lower cholesterol and bloodpressur. Linoleic acid content within Safflower seeds reaches as high as80%, can be used tocrush the high quality vegetable oil, press the bread of the meal is after high quality protein feed.The Safflower can also withdraw red pigment and yellow pigment as dyestuff and apply color.Safflower gathers a medicine to use, edible, the dyestuff, oil anticipate and the animal feed is atthe whole body and develop prospect amplitude.This research took safflower as object, usedadoption splits area design, studied the influence of water-fertilizer interaction on safflower yieldand quality, mainly results were as follows:1The effect of irrigation volume and nitrogen fertilizer on the safflower stress resistance.Irrigation volume for3600m³·hm^-2and nitrogen for180kg·hm^-2, relative conductivity valueminimum, MDA and free Pro content minimum, At this time, had minimum damage degree tosafflower, the resistance best, help to improve the resistance.2The affection of irrigation volume and nitrogen fertilizer on safflower yield and economicbenefit. As irrigation water and nitrogen increases, the plant height significantly higher, stemdiameter increase. And the branches, first branches number, secondary branch number,individual number, total branch number, top ball-flower diameter and thousand seed weight werehighest when irrigation volume for3600m³·hm^-2and nitrogen for180kg·hm^-2,thousand seedweight was42.54g, effective number per Angus an average of52.8entries/plant, had significantdifference(P<0.05) to other treatments. Through the correlation analysis, correlation coefficientof safflower main agronomic characters and corolla production by the great to small was asfollows: thousand seed weight> first branches number> top ball-flower diameter> effectivenumber per Angus> secondary branch number> total branch number> height> stem diameter.The deal with dry matter accumulation quantity achieved largest in harvest, with an average of163.81g/plant.Test results of the safflower corolla yield and grain yield and biological yield were792.04kg·hm^-2,2508.13kg·hm^-2,20476.77kg·hm^-2. With economic results as the index of the production and investment ratio analysis shows that, the safflower corolla production andinvestment ratio was the highest when irrigation volume for3600m³·hm^-2and nitrogen for180kg·hm^-2, for27.32, grain production and investment ratio was the highest, for4.33.3The affection of irrigation volume and nitrogen fertilizer on safflower quality.Different dealwith safflower total ash, acid insoluble ash content had no significant difference, but complywith Chinese pharmacopoeia. Extract content between the treatments was significant difference,the treatment which irrigation water for3600m³·hm^-2and nitrogen for180kg·hm^-2had highestextract content was33.35%, which HCYA and Glycoside also highest, were1.5590%,0.0670%.Therefore, this irrigation water and nitrogen was recommended to production.4The affection of irrigation volume and nitrogen fertilizer on safflower water content andnitrogen use efficiency. when irrigation volume for3600m³·hm^-2and nitrogen for180kg·hm^-2,with corolla as the index, the water use efficiency was1.57kg·hm^-2·mm^-1, nitrogen useefficiency was1.81kg·kg^-1, with grain for index, its water use efficiency was4.98kg·hm^-2·mm^-1,nitrogen use efficiency was4.06kg·kg^-1, this treatment had the best efficiency of usingresources.