次生根 meaning in Chinese

secondary root

Secondary roots emerge on the 4th or 5th day about 4 or 5 cm from the root apex .
在第四或第五天，距根端大约4或5厘米处发出次生根。
Referring to the achievements of conservation tillage on dry land farming , there is a series of work to be done to develop new tillage techniques to adapt to double cropping system of wheat and maize in shandong province . such work includes controlling the combine traveling along the line , return the stalk to the field after chopped , subsoiling being done in maize ' s growing stage . the advantage of subsoiling is to make the soil inter placed with soft and hard strips , which is good for decreasing runoff and vaporizing , and retaining rain
1 、保护性耕作条件下，普通小麦条播机的播种质量较差，小麦的田间出苗率比传统耕作低9 . 3 ；保护性耕作小麦冬前地上部分的生长状况也较传统耕作小麦差；由于根系的生长条件较为优越，保护性耕作的小麦的根系生长旺盛、分布广，越冬后有利于小麦的地上部分生长，大量发生春季分蘖和次生根，幼穗强烈分化，表现出较传统耕作小麦强的生长优势，产量提高6左右。