Page 87 - 《华中农业大学学报（自然科学版）》2022年第2期

82 华 中 农 业 大 学 学 报 第 41 卷

表1 2019－2020年生育前期0~20 cm土层各处理土壤含水量与贮水量
Table 1 Soil water content and storage in the 0-20 cm soil layer at the early growth stage of maize from 2019 to 2020
玉米播种后 2019 2020 平均Mean
时间/d 主处理 副处理 含水量/% 贮水量/mm 含水量/% 贮水量/mm 含水量/% 贮水量/mm
Time after Main treatment Sub treatment Water Water Water Water Water Water
sowing content storage content storage content storage
LAPP 20.2Aa 46.4Aa 16.7Aa 38.5Aa 18.5Aa 42.5Aa
BSSP 21.0Aa 48.2Aa 16.2Aa 37.2Aa 18.6Aa 42.7Aa
覆膜FM
LSSP 21.3Aa 49.0Aa 16.4Aa 37.7Aa 18.9Aa 43.4Aa
CK 20.7Aa 47.5Aa 14.6Aa 33.6Aa 17.6Aa 40.6Aa
30
LAPP 17.8Ba 40.9Ba 10.0Ba 23.0Ba 13.9Ba 32.0Ba
BSSP 17.6Ba 40.5Ba 10.5Ba 24.1Ba 14.0Ba 32.3Ba
不覆膜NM
LSSP 17.6Ba 40.4Ba 10.3Ba 23.8Ba 14.0Ba 32.1Ba
CK 17.6Ba 40.5Ba 11.0Ba 25.3Ba 14.3Ba 32.9Ba

LAPP 18.4Aa 42.3Aa 16.9Ab 38.9Ab 17.6Ab 40.6Ab
BSSP 19.2Aa 44.2Aa 18.2Aa 41.8Aa 18.7Aa 43.0Aa
覆膜FM
LSSP 18.2Aa 41.8Aa 17.6Aab 40.5Aab 17.9Aab 41.1Aab
CK 19.3Aa 44.5Aa 18.5Aa 42.6Aa 18.9Aa 43.5Aa
50
LAPP 15.2Ba 35.1Ba 13.7Bb 31.5Bb 14.5Bb 33.3Bb
BSSP 16.1Ba 37.0Ba 16.0Ba 36.7Ba 16.0Ba 36.9Ba
不覆膜NM
LSSP 16.1Ba 37.1Ba 14.8Bab 34.1Bab 15.5Bab 35.6Bab
CK 16.2Ba 37.2Ba 14.7Bab 33.8Bab 15.4Bab 35.5Bab
注：数据为平均值。同列中不同大写字母表示主处理之间差异显著，不同小写字母表示副处理间差异显著（P<0.05）。下同。Note：Da⁃
ta are shown as the mean values.Different capital letters in the same column indicate the significant differences between the main treatments and
the different lowercase letters in the same column indicate the significant differences among the sub treatments（P<0.05）.The same as below.

图2 2019－2020年春玉米生育前期耕层土壤碱性磷酸酶活性
Fig.2 Soil alkaline phosphatase activities in the surface layer at the early
growth stage of spring maize from 2019 to 2020