The results indicated that improving amount of nitrogen fertilizer on fruit weight and number per plant in pitaya had obvious effect .

说明增施氮磷钾肥施用量对提高火龙果单果重和单株结果数的效果明显。

There are two main types of pitaya , the sour types , typically eaten in the Americas , and sweet types found across Asia .

火龙果主要有两类：酸口味的，通常在美洲地区可以吃到；甜口味的，在整个亚洲可以找到。

Agricultural measures were usually taken to control stem rot disease in pitaya , which can effectively reduce propagation , transmission and spreading of the disease .

对火龙果茎腐病主要采取农业防治，及时清除病残体，减少病菌的繁殖、传播和蔓延。

The composition of fatty acid and amino acid in the seed kernel of white pitaya was analyzed by GC-MS technique and amino acid automatic analysis apparatus respectively 。

分别用GC/MS分析仪和氨基酸自动分析仪分析了火龙果种仁的脂肪酸和氨基酸的组成成分。

To find the reason of low seed-setting of red Pitaya , it compared flower shape , pollen size and pollen viability between red pitaya and white pitaya flower .

本试验通过红肉火龙果和白肉火龙果花的外形、花粉粒大小和生活力的差异比较，探究红肉火龙果授粉结实率低的原因。