to evaluate the effect of slow release fertilizer and humic acid on quality of new guinea impatiens (impatiens hawkeri), an experiment established in complete random design with 15 treatments and three replications. treatments were slow release fertilizer (12-11-18-2.7mgo-8s) in five levels (0, 1.5, 3, 4.5 and 6 kg/m3) and humic acid in three levels (0, 2 and 4 kg/m3) that mixed with medium cul...

This study aimed to evaluate the production and quality of açaí seedlings regarding presence absence controlled-release fertilization under different shading levels. The was conducted at experimental field Embrapa - Acre, using a completely randomized design in 4 x factorial arrangement. factors included four evaluation periods (60, 120, 180, 240 days after transplanting) environments (20%, 30%...

Abstract Controlled-release nitrogen fertilizer (CRNF) can effectively enhance crop yields and raise the efficiency of in agroecosystems. In present study, volatilization NH 3 was determined by airflow enclosure chamber technique after application different CRNF rates double-cropping rice fields southern China for continuous years. The early late season (ESR LSR) were cultivated each year. resu...