Effects of different organic fertilizers on macrofauna population in maize field under equal nitrogen conditions
To explore soil improvement and farmland quality improvement from the perspective of soil macrofauna,and to investigate the effects of different combinations of organic fertilizers and chemical fertilizers on maize soil macrofauna under equal nitrogen conditions,a survey was conducted on the soil environment and distribution of macrofauna in different soil layers under different fertilization treatments,and the diversity of soil macrofauna was analyzed. The experiment set up 6 treatments,including pig manure (treatment 3),sheep manure (treatment 4),bacterial residue (treatment 5),organic fertilizer (treatment 6) for perishable garbage,chemical fertilizer (treatment 2),and blank (treatment 1). The results showed that a total of 10 groups of macrofauna,including Hymenoptera,Arachnida,Hemiptera,and Bombtail,were captured in the soil,with Hymenoptera and Arachnida as the dominant groups. The experimental results showed that the Shannon-Wiener diversity index of each treatment was ranked from high to low as treatment 6,treatment 3,treatment 4,treatment 5,treatment 2,and treatment 1. Among them,the Shannon-Wiener diversity index and evenness index were the highest for the treatment of perishable waste organic fertilizer,followed by the treatment of pig manure organic fertilizer. The Shannon-Wiener diversity index of the four types of organic fertilizers was higher than that of pure chemical fertilizers and blank treatments,indicating that the application of organic fertilizers increases soil moisture content,organic matter and total nitrogen content,which was conducive to the increase of soil tauna community quantity and diversity,and was conducive to the sustainable development of agriculture ecology.
organic fertilizercorn fieldsoil macrofaunadominant groupShannon-Wiener diversity indexevenness index
NETL
NSTL
万方数据
