水肥耦合对西和半夏生长指标和产量及品质的影响

Effects of Water and Fertilizer Coupling on Growth Parameters,Yield and Quality of Pinellia ternate in Xihe

为了提升临夏地区西和半夏的产量和品质,进一步明确水肥耦合对西和半夏生长发育的影响,采用裂区试验设计,以灌水量为主处理,肥料配比为副处理,研究了不同水肥耦合处理对半夏生长发育、产量、品质的影响。结果表明,当灌水量为500 m^(3)/hm^(2)(苗期和块茎膨大期各灌水250 m^(3)/hm^(2)),施肥水平为施腐熟牛粪15000 kg/hm^(2)、N 342 kg/hm^(2)、P_(2)O_(5)275 kg/hm^(2)、K_(2)O 110 kg/hm^(2)时,半夏折合产量最高,为25114.42 kg/hm^(2);品质最好,水分含量最低,为43.3 g/kg;总灰分含量较低,为31.6 g/kg;浸出物含量最高,达153.3 g/kg。由此可见,该水肥配比适宜在临夏西和半夏生产中加以推广应用。

In order to improve the yield and quality of Pinellia ternata in Xihe County,Linxia and to further clarify the impact of water fertilizer coupling on its growth and development,a split-block experimental design was adopted,with irrigation as the main plot and fertilizer ratio as the sub-plot.Effects of different water fertilizer coupling treatments on the growth,development,yield,and quality of Pinellia ternata were studied.The results showed that when the irrigation amount was 500 m^(3)/ha(250 m^(3)/ha each during the seedling stage and tuber expansion stage),and the fertilization ration of 15000 kg/ha decomposed cow manure,342 kg/ha of N,275 kg/ha of P_(2)O_(5),and 110 kg/ha of K_(2)O,the yield of Pinellia ternata was the highest,at 25114.42 kg/ha.The quality was also the best,with the lowest moisture content at 43.3 g/kg,lower total ash content at 31.6 g/kg,and the highest extract content at 153.3 g/kg.Therefore,this water and fertilizer ratio is suitable for promotion and application in the production of Pinellia ternata in Linxia.