2种钙肥对菜心生长及品质的影响

采用73.0 mg/L的果蔬钙肥及1.25 g/L、2.5 g/L和3.75 g/L 3种浓度的氯化钙溶液对菜心进行叶面喷施，研究不同钙肥处理对菜心生长及品质的影响。试验结果表明，不同的钙肥处理均可促进菜心的生长发育，提高叶绿素含量、增加菜心的产量、改善菜心品质，但存在差异，73.0 mg/L的果蔬钙肥处理效果最好，低浓度氯化钙处理对菜心产量和品质影响很小，中浓度氯化钙处理影响比较大，高浓度氯化钙处理比中浓度处理效果差。在不同的生长发育期，作用效应有所不同，在菜心生长的初期各钙肥处理影响不大，生长中后期影响比较大。

Effects of Two Kinds of Calcium Fertilizers on Growth and Quality of Flowering Chinese Cabbage

We sprayed 73.0 mg/L Foliwell Ca and 1.25 g/L, 2.5 g/L and 3.75 g/L CaCl2 on leaves of flowering Chinese cabbage, and then studied the effects of the two kinds of calcium fertilizers on the growth and quality of flowering cabbage. The results showed that, all the four calcium fertilizer treatments could promote the growth and development of flowering Chinese cabbage, with chlorophyll content and yield increased and quality improved differently. 73.0 mg/L Foliwell Ca treatment had the best effect, while 1.25 g/L CaCl2 treatment had little effect on yield and quality of flowering Chinese cabbage, and 2.5 g/L CaCl2 treatment had relatively large influence, while 3.75 g/L CaCl2 treatment had worse effect than 2.5 g/L CaCl2 treatment. The effects were different in varied growth and development stages. During the early growth stage of flowering Chinese cabbage, all the fertilizer treatments had little effect on its growth, while in the middle and later growth periods, the influence was relatively larger.