Agronomy, Journal Year: 2024, Volume and Issue: 14(9), P. 2029 - 2029

Published: Sept. 5, 2024

In order to increase nutrient input and alleviate the poor growth of blueberry (Vaccinium corymbosum L.) in neutral soil with strong nitrification, application nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) as an enhanced efficiency fertilizer is a strategy reduce nitrogen (N) loss improve N supply. However, few studies have systematically investigated effect DMPP on its condition detail so far. this study, pot experiment was conducted elucidate at four gradient levels including 0.5% (w/w applied-N) (DL), 1% (DM), 2% (DH), no (CK) dynamics mineral (NH4+-N NO3−-N), chemical properties, well agronomic characteristics physiological indexes plants soil–blueberry system. The addition significantly increased retention ammonium content total nitrogen. qPCR analysis showed that inhibited ammoxidation process mainly by reducing abundance ammonia-oxidizing bacteria (AOB) amoA gene rather than archaea (AOA) gene. No significant inhibitory observed for nitrite dehydrogenase nxrA reductase nirS. Soil NH4+-N available phosphorus were both rates bulk rhizosphere soil. Applying sufficient safely inhibit not only increasing 10.42% 26.79%, but also enhancing 9.19% 22.41% compared CK soil, respectively. Moreover, concentration leaves 12.17% 26.42%, respectively, CK. branch length dry weight plant 16.8% 33.1%, These results provide valuable information cultivation. Fertilization applied has great economic potential absorption promote vegetative blueberry.

Language: Английский