牧草跡地に於ける種子の発芽について : (3)陸稻種子の発芽及初期生育について
ON THE GERMINATION OF CROP SEED IN THE SOIL USED AFTER THE FORAGE CROP CULTIVATION : III. ABOUT GERMINATION AND SEEDLING OF THE UPLAND RICE

Kyoichi MATSUOKA
1956 Nihon Seitai Gakkaishi  
In previous reports 【 have mentioned that the soil used after the forage crop cultivation promotes soil aggregation , and that the amplitude of soil moisture and soil temperature in the upPer parts of this soil is very remarkable as compared with that under wheat − sweet potato cultivat 三 〇n . In order to get goQd ger 皿 洫 at圭 on and good early growth of crops in the soil used after forage crop cultivation , such as malze and soybean , we 皿 ust change . the depth of seeding according to the
more » ... cording to the kinds and var 三 eties of them . 洫 this paper, I me 貶 tion about the diffefence of germination and early growth of upland rice in the soil used after the forage crop cultivation and com − pare this difference with that of the soil used after the wheat ・ sweet Ix 〕 tato cu 翌 t孟 vation . The experirnents were carried out from May to July in 1954 , the results are as fol 正 owE. ; . ( 1 ) The germination of upland rice in the 昌 oil under the . . 5 years fofage crop cultivation was better than thaし三 皿 the soil used a ' fter the 5 y( ゑrs 宙 heat二 ・ sweet potato cultivat 耄 on . The large amp 玉 itude ' of soil moisture as well as that of so 三 1 temperature gives good effect on the germination of upland rice . The best depth of germinatio 且 was . 1 − 5cm . 32 ( 2) The maximum seed 量 ng depth of upland rice was 15cm . ( 3) In connect 三 〇皿 with the grewth after its germinat 三 〇n , the hest depth of seediIlg was 3cm . ( 4 ) The germination of upland rice in the soil used after F. elatior L cultiv 晟土ion was best , wh 董 ch was followed by that in the soil used for T. repens cultivation . ( 5 ) With respect to the amplitude of soil mois − ture as well as that of soil temperature , the soil used after the forage crop cultiva ' tion was more remarkable than the check plot . Its degree was
doi:10.18960/seitai.6.1_32 fatcat:xztldis3nndlxpwuxli7u6laay