湖南祁阳县土壤酸化主要驱动因素贡献解析
周海燕,徐明岗,蔡泽江,文石林,吴红慧

Quantitative Analysis of Driving-Factors of Soil Acidification in Qiyang County, Hunan Province
ZHOU HaiYan,XU MingGang,CAI ZeJiang,WEN ShiLin,WU HongHui
表2 祁阳县主要农作物籽粒秸秆的养分含量[21,22,23,24,25]
Table 2 Grain dry matter yield and element contents in seeds and straws for typical crops
作物
Crop
面积
Area
(hm2
籽粒产量
Grain yield
(kg·hm-2)
秸秆产量
Straw yield
(kg·hm-2)
P(%) K(%) Ca(%) Mg(%)
籽粒
Grain
秸秆
Straw
籽粒
Grain
秸秆
Straw
籽粒
Grain
秸秆
Straw
籽粒
Grain
秸秆
Straw
水稻 Rice 71133 6660 5997 0.35 0.176 0.19 1.99 0.03 0.54 0.12 0.212
玉米Corn 3224 3420 4104 0.26 0.152 0.34 1.18 0.013 0.54 0.120 0.224
花生Peanut 2863 2610 2093 0.5 0.163 0.85 1.09 0.074 1.76 0.255 0.56
油菜Rape 6144 1470 2195 1.47 0.144 7.77 1.94 - 1.52 0.94 0.25
甘薯Sweet potato 6023 4320 2159 0.17 0.283 0.73 3.05 0.14 2.11 0.073 0.46
大豆Soybean 4401 3045 4880 0.85 0.196 2.17 1.17 0.26 1.71 0.24 0.48