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稗草的外形与水稻相似,如何区别稻、稗呢?据我们观察,“二九”水稻品种的不同生育期与稗草的区别如下:1.插秧后一两天,稗草迅速落黄,叶片下垂,水稻则现青色。可结合扶苗,拔去稗草。2.插秧后3—5天,秧苗尚未返青,叶尖呈黄色,而稗草已经变绿。3.秧苗返青后,稗草颜色比秧苗色稍浅,叶片稍宽,且高于秧苗。4.秧苗插下约10天后尚未分蘗,稗草已经分蘗,多的达4—5个,颜色嫩绿,可用姆指按住稗草的分蘗处向下压,然后向斜上方拔,便不会将秧苗带出。5.插秧25天以后,是水稻分蘗后期,稗草叶片嫩
Barnyardgrass has a similar shape to rice. How can we distinguish rice from barnyard grass? According to our observation, the difference between the different growth stages of the “29” rice varieties and barnyardgrass is as follows: 1.Early day after transplanting, Leaves sagging, rice is blue. Can be combined with help seedlings, unplug barnyard grass. 3-5 days after transplanting, the seedling has not yet turned green, the tip is yellow, and the barnyard grass has become green. 3. Seedling green, barnyard grass color slightly lighter than the seedling color, slightly wider leaves, and higher than the seedlings. 4 seedlings inserted about 10 days after the tiller has not yet been tillering, barnyardgrass has tiller, more than 4-5, the color of verdant, with the thumb can press the barnyard grass down the tiller, and then to the top of the oblique pull, it will not Take the seedlings out. 5. Transplanting 25 days later, is the late tillering of rice, barnyardgrass leaves tender