[Orthogonal experiments on cultivation of Phyllanthus urinaria]

To study the growth rules, the output and the influence factors of cultivated Phyllanthus urinaria, and provide basis for standardized cultivation.

Orthogonally designed field experiments with three factors and three levels, comparing the characters of cultivated plants and the wild ones of P. urinaria.

Under the manual planter condition, the characters, such as branching number, single dry weight, single output etc, enhanced enormously, and the increase of single output reaches 3.27 times. The sowing time was the most sensitive factor, which affected the single character and the yield per unit of area, whereas the different levels of sowing thickness and fertilizer also remarkably influenced the output. When the seeds were sowed at the mid-April earlier period, drilling with the 20 cm row spacing, they started to emerge about 1 week later, the growth flush period was from June to August, the growth slowed down in September, and the output per hectare could reach to 5.750 kilograms at harvest in late October.