Chiryoku iji, rensaku shōgai taisaku shingijutsu
By: Nōrin Suisanshō Nōgyō Kenkyū Sentā hen
Series: Sōgō nōgyō kenkyū sōsho -- dai 2-gō
Publisher: Nōrin Suisanshō Nōgyō Kenkyū Sentā
Published: 1984
Place of publication: Ibaraki-ken Tsukuba-gun Yatabe-machi
Language: jpn
Number of pages: 305
Subjects: Crop rotation; Soil fertility; Crops and soils