水稲乾田直播栽培におけるMCCの処理適期について

概要

論文の詳細を見る
Studies on the rice injury and weed control by methyl-N-(3,4-dichlorophenyl)carbamate (swep; MCC in Japan) were made in field and pot experiment to decide the optimum application time in dry period in direct-seeded rice culture. Rice plants were not injured at rates of 30 to 50 g/a of swep when applied cat pre-emergence and before developing of the 1st leaf. However, young rice plants having 2 or 3 true leaves were injured heavily. Swep was very effective at the rate of 50 g/a for barnyard grasses when applied before emergence or before having about 4 leaves of the grasses. Other common annual weeds were controlled satisfactorily. Then, although swep was applicable at the period between sowing and shooting stage of rice, the spraying at shooting stage was most effective. The results are discussed with respect to the combination of weeding methods in dry-seeded rice culture.
日本雑草学会の論文
1967-12-25