Development of acid-resistant seed pelletization formula and its effects on improving rapeseed growth in acidic soil

Soil acidification impedes crop growth. Seed pelletization was used to improve crop resistance to various stress environments but not acidic soil. This study aimed to develop rapeseed seed pelletization and to assess the promotional effects of pelletization on rapeseed growth under acidic conditions. Two main acid-resistant functional agents (Ca(OH)2, and biochar) and a basic formula including sodium carboxymethyl cellulose, H3BO3, nano-silica, brassinolide, sodium naphthalene acetate, indoleacetic acid, and yeast metabolite were used to evaluate the effects on rapeseed growth by seed pelletization. Then, the mechanism of alleviating acidic stress by seed pelletization was investigated. A basic formula were developed by soil test. Three acid-resistant seed pelletization cases (① 0.5