Effects of Balanced Fertilization on Population Micro Environment in Summer Maize Farmland
In this manuscript,micro-environment of summer maize's group under 4 different fertilization practices,such as CK (no fertilizer),N2PK (inorganic N and P and K fertilizer),N2PKM (inorganic N,P,K fertilizer with manure),and N2PKS (inorganic N,P,K fertilizer with manure straw),were studied.The results showed that balanced fertilization practices (N2PK,N2PKM and N2PKS)could significantly reduce summer maize's group inner ground temperature at both belling mouth stage and filling stage respectively compared with CK treatment,about 2-10 ℃ (at belling mouth stage)and 1-2 ℃ (at filling stage) were decreased.Moreover,summer maize's group canopy temperature was also significantly reduced,and 1-4 ℃ (at belling mouth stage) was decreased.At the same time,balanced fertilization practices could effectively improve summer maize's group canopy temperature at filling stage.Additionally,balanced fertilization practices (N2PK,N2PKM and N2PKS) had little effects on carbon dioxide (CO2) content within the group at belling mouth stage,however,they had larger effects on CO2 content within the group at filling stage,especially the N2PKM and N2PKS practices.Balanced fertilization practices had no effects on relative humidity within the maize's group.
NETL
NSTL
万方数据
维普
