MySheen

How to cultivate strong rice seedlings with paclobutrazol and uniconazole

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, Paclobutrazol and uniconazole are both plant growth regulators, which have good effects on controlling growth and promoting tiller, preventing rigidity, preventing abortive seedlings and increasing panicle, grain and yield in rice seedling raising. The method of using paclobutrazol is to spray 100kg paclobutrazol with 300ppm concentration per mu of seedling field when one leaf is of one heart, so as not to miss spray or re-spray. When spraying, it is necessary to release the moisture of the seedling field and keep the field free of stagnant water. The usage of uniconazole is as follows: soaking seeds with 50-200ppm concentration of uniconazole solution for 48 hours, seeds and chemicals.

Paclobutrazol and uniconazole are both plant growth regulators, which have good effects on controlling growth and promoting tiller, preventing rigidity, preventing abortive seedlings and increasing panicle, grain and yield in rice seedling raising. The method of using paclobutrazol is to spray 100kg paclobutrazol with 300ppm concentration per mu of seedling field when one leaf is of one heart, so as not to miss spray or re-spray. When spraying, it is necessary to release the moisture of the seedling field and keep the field free of stagnant water. The method of using uniconazole is as follows: soaking seeds with 50-200ppm concentration of uniconazole solution for 48 hours, the ratio of seed to drug dose is 1: 1.2: 1.5. In the process of soaking the seeds, the seeds should be stirred for 4 times to make the seeds absorb drugs evenly. After soaking the seeds, rinse with clean water before sprouting. When the seeds were soaked with uniconazole, the seeds were soaked and germinated one day earlier than the conventional ones.

 
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