喷施不同钙肥对莴笋产量及品质的影响  

Effects on the Yield and Quality of Lettuce by the Different Calcium Fertilizers Spraying

作　　者：李冰[1] 王昌全[1] 冯长春 李廷轩[1] 张锡洲[1] 

机构地区：[1]四川农业大学资源环境学院,雅安625014 [2]四川省攀枝花烟草公司,攀枝花617026

出　　处：《中国农学通报》2004年第2期129-131,共3页Chinese Agricultural Science Bulletin

基　　金：四川省科技厅"十五"攻关项目 ( 0 2NG0 0 4-0 0 4);四川省人事厅学术技术带头人培育基金

摘　　要：盆栽实验表明 ,在莴笋的生长前期喷施不同的钙肥 ,对莴笋的产量和品质具有提高作用 ,其中以 0 5 %Ca (NO3) 2 的效果最为明显。在促进株高、叶面积、茎粗、茎长、单株重、单株茎重的增加以及降低硝酸盐含量、提高维生素C和可溶性糖含量等方面效果极为显著 ;而0 5 %CaSO4 在提高茎粗和单株茎重方面效果较好 ,而对单株全重影响不大 ,但能显著地促进叶片的Vc和可溶性糖含量 ;0 5 %CaCl2 对莴笋产量的提高主要表现在促进莴笋的伸长和叶片的生长上 ,同时在降低莴笋茎。A pot experiment indicates that the promotion influences were found on the yield and quality by spraying different calcium fertilizers during the earlier stage, and that yield and quality were raised. The effect of 0.5%Ca (NO 3) 2 was significant. The increasing of plant high, leaf area, stem width and length, single gross weight and stem weight, and the reduction of nitrate content and the raising of vitamin C and solubility sugar content etc. were obvious found by sprayed 0.5%Ca (NO 3) 2. The sprayed 0.5%CaSO 4 is slightly good on the increasing of lettuce stem width and single stem weight, and it is not significant to single gross weight, but is significant to the Vitamin C and the solubility sugar content of leaf. The effects of sprayed 0.5%CaCl 2 on the lettuce yield increasing chiefly depended on promoting lettuce's stretching and the growth of leaves. At the same time, the reduction of nitrate content in the lettuce stem and leaf, and the increasing of Vc content in the stem were significant by the 0.5%CaCl 2 spraying.

关 键 词：钙肥 莴笋 产量 品质 喷施 紫色土 

分 类 号：S636.2[农业科学—蔬菜学]