Growth and Yield Response and Water Use Efficiency of Cotton under Film-Mulched Drip Irrigation to Magnetized Ionized Water and Bacillus subtilis in Saline Soil in Xinjiang

In irrigated agriculture, the combination of multiple regulation measures is an effective method to improve saline soil and promote crop growth. Magnetized ionized water irrigation considered a promising activation technique, while use Bacillus subtilis for amelioration environmentally friendly. this study, magnetized B. were used cotton growth under film-mulched drip (FMDI) in soil. A two-year field experiment was conducted investigate effects differing amounts two types (non-magnetized-ionized (NMIW) (MIW)) on (plant height, leaf area index, shoot dry matter chlorophyll content) yield cotton, as well content, salts accumulation, efficiency (WUE) (IWUE) FMDI southern Xinjiang. Five (0, 15, 30, 45 60 kg ha−1) NMIW (designated B0, B1, B2, B3 B4) MIW M, MB1, MB2, MB3 MB4) applied experiments. The results showed that increased content reduced accumulation 0–40 cm layers compared with B0. Moreover, significantly (p < 0.01) plant Seed yield, WUE IWUE also observed increase 0.05). Compared treatments, treatments seed by 2.1–12.2%, 0.2–9.0%, 2.1–12.2%. Under MIW, amount independent variable, quadratic function relationships established. By taking first derivative function, highest obtained 51.8, 55.0 51.4 ha−1, respectively. Based comprehensive consideration WUE, soil, ha−1 treatment recommended cultivated Xinjiang, China.