喷施有机营养型专用叶面肥对叶菜产量和品质的影响

Effect of organic nutrient special solution on yield and quality of leaf vegetables

以菜心和芥菜为试验材料，进行大田试验，研究喷施有机营养型专用叶面肥的效果。结果显示：喷施有机营养型专用叶面肥与对照（清水）比较有极显著的增产效果，在菜心上增产15．5％～20．1％，芥菜上增产16．2％～24．4％，其中以450倍液的增产效果最为显著。喷施有机营养型专用叶面肥具有提高叶菜收获物、Vc含量和可溶糖含量，提高氮、磷、钾干物养分含量和养分吸收量的效果，两种作物硝酸盐含量比对照减少7．5％～40．7％和25．5％～43．1％。

The effects of organic nutrient special solution （ONSS） on leaf vegetables were studied in this paper. The results indicated that the average yield of Chinese flowering cabbage（Brassica campestrisz L.ssp. chinensis var. utilis Tsen et Lee） and Chinese mustard（Brassica juncea （L）. coss. var. foliosa Bailey） applied by ONSS were increased by 15.5 % - 20.1% and 16.2% -24.4%, respectively. And the effect of 450 times solution was the most significant The absorption amounts of nutrient could be improved and the contents of Vitamin C, soluble sugar, nitrogen, phosphorus, potassitum could also be increased after applying ONSS. Compared with the control, the nitrate content in two crops were decreased by 7.5%-40.7% and 25.5 % -43.1%, respectively.