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Rungsit Suwanketnikom. Response of Weeds and Yield of Dry Direct Seeded Rice to Tillage and Weed Management. (). Kasetsart University. Office of the University Library. : , เม.ย.-มิ.ย. 2548.
Response of Weeds and Yield of Dry Direct Seeded Rice to Tillage and Weed Management
Name: Ranjit, Jagat Devi
Organization :
Nepal Agriculture Research Council. Agronomy Division
Name: Rungsit Suwanketnikom
Organization :
Kasetsart University. Faculty of Agriculture. Department of Agronomy
keyword:
dry direct seeded rice
;
tillage
Abstract:
The study was initiated to assess the performance of rice (Oryza sativa) under dry direct seeded environment with two tillage systems of conventional tillage and minimum tillage and five weed management treatments namely unweeded control, handweeding twice 25 and 45 days after seeding, anilophos + one handweeding, bispyribac-sodium, and straw mulch + bispyribac-sodium as an alternate method of transplanting in the mid-hill ecology. Both anilophos and bispyribacsodium were found to reduce narrowleaf and broadleaf weeds compared to unweeded control. However, anilophos reduced Cyperus difformis, C. sanguinolentus, and C. iria 4 weeks after seeding (WAS) but not Ammania sp. and Dopatrium junceum 8 WAS. Bispyribacsodium and straw mulch + bispyribac-sodium reduced the population of Alternanthera philoxeroides, Ammania sp., Commelina diffusa, C. difformis, C. iria, and D. junceum 8 WAS. No phytotoxic effect on the rice plants was observed due to both herbicides. Yield and yield attributes were not affected by the tillage systems. The weed managements were found to affect the numbers of tiller per square meter and grain yield. The increasing number of weed did not affect the plant height of rice (Khumal-4). The numbers of tiller and grain yield highly affected the increasing number of weed population. Anilophos plus one handweeding, straw mulch plus bispyribac-sodium, handweeded twice and bispyribacsodium alone gave higher yield compared to unweeded control. Promising grain yield could be achieved with the anilophos or bispyribac-sodium with additional physical or mechanical control methods in dry direct seeded rice.
Kasetsart University. Office of the University Library
Address:
BANGKOK
Email:
tdckulib@ku.ac.th
Created:
เม.ย.-มิ.ย. 2548
Modified:
2009-10-02
Issued:
2009-10-02
บทความ/Article
application/pdf
วิทยาสารเกษตรศาสตร์ (สาขาวิทยาศาสตร์), 39(2) หน้า 165-173
eng
©copyrights Kasetsart University
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ใช้เวลา
0.051885 วินาที
Ranjit, Jagat Devi
| Title | Contributor | Type |
|---|---|---|
| Weed Seed Bank Response to Soil Depth, Tillage and Weed Management in the Mid Hill Ecology
มหาวิทยาลัยเกษตรศาสตร์ Ranjit, Jagat Devi ;Rungsit Suwanketnikom;Sombat Chinawong;Sutevee Suprakarn;Isara Sooksathan;Sunanta Juntakool | บทความ/Article | |
| Response of Weeds and Yield of Dry Direct Seeded Rice to Tillage and Weed Management
มหาวิทยาลัยเกษตรศาสตร์ Ranjit, Jagat Devi ;Rungsit Suwanketnikom | บทความ/Article |
Rungsit Suwanketnikom