行政院農業委員會台南區農業改良場  研究彙報第13號

水稻濕田直播田殺草藥效試驗

黃振增

摘  要

1.「農業是人類與雜草鬥爭的一種營利事業」,因工商業發達致人力缺乏,乃探求化學劑以控制雜草,而不影響作物之生育及產量。尤其在水稻直播方面更須加強試驗,以應直播栽培水稻時雜草防除之用。

2.民國64年樂滅草及掃丹粒劑參加試驗,前者未能配合中間作耕種方式,後者之施用法尚有斟酌之可行性。

3.民國65年掃丹及掃丹-M粒劑參加試驗,在中間作田表現良好,推荐的使用法是:直播後7∼10天於淺水狀態下,每公頃施用掃丹或掃丹-M粒劑30公斤,並保持淺水3∼5天。

4.民國六十六年馬上除及草霸王參加試驗,在中間作田亦有良好表現,其推荐使用方法如下:直播後6∼7天,於淺水狀態下,每公頃施用馬上除25公斤,施藥後3∼4天再行灌水恢復一般管理。或者,於播種後7∼10天,每公頃施用掃丹-M或馬上除20公斤,再於播種後約30天排乾田面積水,每公頃噴施草霸王200倍稀釋液3公升,並保持排水狀態3∼5天。


The screening test on herbicides for direct-seeding in wet fields

T. T. Huang

Summary

        From the economic points of view the direct-seeding cultivation of rice is getting more important in Taiwan in recent years because of the labor shortage in rural villages is becoming more serious since the industrialization is rapidly going on in the urban areas and attracts a big flow of the youth from rural villages but there is a well acknowledged fact the weeds problem is more serious in direct-seeding fields than in the transplanting fields.  The objective of these experiments is trying to test out which herbicides could apply in the direct-seeding field for weed control.  The experimental results are summarized as follows:

1. The data showed that 30 kg/ha of Saturn or Saturn-M granule performed very well for weed control when it was applied during the period from 7 to 10 days after seeding.

2. Data obtained in 1977 indicated that Machete and Basagram also gave satisfactory results.  The recommended amount for Machete granule per hectare is 25 kg and applied in the period from 6~7 days after seeding.  The accepted dosage for Machete or Saturn-M granule per hectare is 20 kg and applied in the times of 7~10 days after seeding.  And again spray of 3l/ha of Basagram that should be diluted 200 times with water on the surface of the field at the 30th day after seeding, the water should be drained out when herbicide solution was to be sprayed.



回研究彙報目錄