東北平坦水田における大区画化と直播栽培による低コスト作業技術の開発
第1報 水田の大区画に伴う作業技術上の諸問題と対策
1994 年 29 巻 3 号 p. 167-175
詳細
1994 年 29 巻 3 号 p. 167-175
In order to strongly promote the labor-saving and low cost rice production in Japan, magnification of a field plot and establishment of stable direct seeding technique are urgently required.
Recently, the important size of paddy fields in Tohoku regeon is being magnified enlarged from 0.3ha to 0.6 over 2ha.
Efficient cultural practices and field management suitable for large plot, therefore, should be established for competitive rice production in an international market.
The following five techniques are considered to be secure and adequate seeding depth and for sufficient number of standings, hence reasonably rice gemination rate and sufficient numbers of plant standings, etc.
1) Magnificantion of the plot size of puddy field with ±2.5cm of land leveling.
2) Protection of water harrowing and leveling in paddy field.
3) Good germination rate by introduction of big seeds all in one system.
4) Simplification of operation of system for direct seeding broadcaster.
5) Application of original broadcaster for seeding, weeding, spraying operation.
