叶下珠人工种植正交实验研究

目的:研究人工种植条件下叶下珠的生长发育规律、产量构成及影响因素,为叶下珠规范化种植提供依据。方法:3因素3水平正交设计田间实验,并将种植叶下珠与野生叶下珠进行性状比较。结果与结论:人工种植条件下叶下珠的株高、分枝数、单株干重等性状均比野生叶下珠有极大的提高,其中单株产量提高达3.27倍;播种期是影响叶下珠单位面积产量和单株性状的最敏感因素,不同播种密度和施肥水平对产量也有显著影响;叶下珠4月中旬前期播种,20 cm行距条播,1周左右开始出苗,6至8月为生长旺盛期,9月份生长减缓,10月下旬采收,每公顷产量可达5 750 kg。

Orthogonal experiments on cultivation of Phyllanthus urinaria

Objective: To study the growth rules,the output and the influence factors of cultivated Phyllanthus urinaria,and provide basis for standardized cultivation.Method: Orthogonally designed field experiments with three factors and three levels,comparing the characters of cultivated plants and the wild ones of P.urinaria.Result and Conclusion: 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 harrest in late October.