Similar to 塩害
ARPANET
ARPANET▲6 trends
1
1▲1 trends
2
2
3
3▲1 trends
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11 (number)
12
12 (number)
13
13 (number)
19
19 (number)
40
40 (number)70
70 (number)
100
100
400
400 (number)
700
700 (number)
1000
1000 (number)
農業技術
Agricultural technology
キノコ栽培
Fungiculture
牛糞
Cow dung
菌床栽培
Fungiculture#Substrates
原木栽培
肥溜め
Slurry pit
外便所
Outhouse
