Effects of different fertilization treatments on soil compaction and crop growth

Abstract

In order to explore the effects of different fertilization treatments on soil properties and crop growth during the maturation of raw soil, a pot planting experiment with different fertilization treatments was carried out. Three fertilization treatments were set up in the experiment: single organic fertilizer treatment (OF), pollution-free fertilization treatment (NP), and conventional fertilization treatment (CF). The compactness of different soil layers,maize plant height, Chlorophyll value and above-ground biomass under the three fertilization treatments were measured. The experiment results showed that: compared with CF treatment, OF and NP fertilization treatment can better improve soil compaction and increase the plant height and leaf green value of maize, the chlorophyll value of maize under OF and NP treatments increased by 22.6% and 10.6%, and the plant height of maize increased by 58.0% and 31.8% respectively. The order of the magnitude of change of soil compaction in different soil layers was CF> NP> OF. Under conventional CF treatment, the maximum compactness value of 20 cm soil layer was 1426 kPa. For the aboveground biomass of maize, the aboveground biomass of maize under OF and NP fertilization treatments were significantly higher than that of CF fertilization treatment (P<0.05). In summary, OF and NP fertilization treatments can help improve the compaction of raw soil and the growth characteristics of crops, and increase the productivity of raw soil.