摘要
以番茄品种"朝研299"为试材,研究日光温室滴灌条件下不同肥料配方对春茬番茄产量、品质和养分吸收的影响,从而确定适宜该区的最佳肥料配比。结果表明:氮磷钾追施比例(N∶P_2O_5∶K_2O)为1.0∶0.4∶1.8时,能够明显提高番茄产量,并增加番茄果实中维生素C、可溶性总糖含量,提高糖酸比,改善果实品质;且明显提高拉秧期植株干物质总积累量,干物质含量为果实>茎>叶>根,该配比养分吸收总量最高,K2O>N>P_2O_5,根据产量和养分吸收含量计算,每生产1 000kg番茄需N 1.73kg,P_2O_50.89kg,K_2O 3.51kg,天津地区最适宜的春茬番茄种植追肥配方为1.0∶0.5∶2.0。
＇Zhaoyan 299 ＇ tomato variety was used as test material, the effects of different fertilizer formulas on yield,quality and nutrient absorption of tomato were investigated under drip irrigation, with determining the optimal and regional fertilizer formula,in order to gain high quality and efficient production of tomato cultivated in solar greenhouse. The results showed that,when the application ratio of N ： P2O5 ： K2O was 1.0 ： 0.4 ： 1.8,the yield,vitamin C content, soluble sugar content and the sugar-acid ratio of tomato were increased,with improving fruit quality, compared with other treatments. Moreover,it could significantly add total dry matter weight of plant when tomato was harvested finally,and the sequence of dry matter weight among different organs from high to low was fruit〉stem〉leaf〉root. In addition, the treatment gained the highest amount of nutrient absorption,and the order of nutrient absorption rate was K2O〉N〉P2O5. Generally,based on the analysis of yield and nutrient uptake of tomato,the 1.73 kg N,0. 89 kg P2O5 ,3. 51 kg K2O were absorbed in production of 1 000 kg fruit of tomato,and their optimal proportion was 1.0 ： 0. 5 ： 2. 0 suited for spring cultivation of tomato in coastal area.
出处
《北方园艺》
CAS
北大核心
2017年第4期39-42,共4页
Northern Horticulture
基金
国家公益性行业(农业)科研专项经费资助项目(201303133-3)
天津市科技计划资助项目(14ZCDGNC00108)
天津市科技计划资助项目(14RCGFNC00101)
关键词
肥料配方
日光温室
番茄
产量
品质
养分吸收
fertilizer formulas
solar greenhouse
tomato
yield
quality
nutrient absorption
