RICERICE

Authors Produced and published by the University of Arkansas Division of Agriculture Cooperative Extension Service 2301 S. University Little Rock, Arkansas 72204

EDITOR Dr. Jarrod T. Hardke, Rice Extension Agronomist

CONTRIBUTING AUTHORS AND RICE PRODUCTION HANDBOOK COMMITTEE

Dr. Tom Barber, Associate Professor and Extension Weed Scientist, Lonoke, AR 72086 (e-mail: tbarber@uaex.edu).

Dr. Rick D. Cartwright, Associate Director - Agriculture and Natural Resources, State Extension Office, P.O. Box 391, Little Rock, AR 72203 (e-mail: rcartwright@uaex.edu).

Dr. Paul Counce, Professor and Rice Physiologist, Rice Research and Extension Center, 2900 Highway 130 E., Stuttgart, AR 72160 (e-mail: pcounce@uark.edu).

Dr. Brandon C. Grigg, Research Associate and Rice Quality Lab Manager, Department of Food Science, 2650 N. Young Avenue, University of Arkansas, Fayetteville, AR 72704 (e-mail: bcgrigg@uark.edu).

Dr. Jarrod T. Hardke, Assistant Professor and Rice Extension Agronomist, Rice Research and Extension Center, 2900 Highway 130 E., Stuttgart, AR 72160 (e-mail: jhardke@uaex.edu).

Dr. Chris Henry, Assistant Professor and Water Management Engineer, Rice Research and Extension Center, 2900 Highway 130 E., Stuttgart, AR 72160 (e-mail: cghenry@uark.edu).

Dr. Fleet N. Lee, Professor and Plant Pathologist, Retired.

Dr. Gus Lorenz, Professor and Extension Entomologist, Lonoke Extension and Research Center, P.O. Box 357, Lonoke, AR 72086 (e-mail: glorenz@uaex.edu).

Mr. Ralph Mazzanti, Area Extension Rice Specialist -South Arkansas, Rice Research and Extension Center, 2900 Highway 130 E., Stuttgart, AR 72160 (e-mail: rmazzanti@uaex.edu).

Dr. Karen Moldenhauer, Professor and Rice Breeder, Rice Research and Extension Center, 2900 Highway 130 E., Stuttgart, AR 72160 (e-mail: kmolden@uark.edu).

Dr. Richard J. Norman, Professor - Soil Fertility, 115 Plant Science, Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR 72701 (e-mail: rnorman@uark.edu).

Dr. Jason Norsworthy, Professor and Weed Scientist, 1366 W. Altheimer Drive, Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR 72704 (e-mail: jnorswor@uark.edu).

Dr. Trent Roberts, Assistant Professor - Soil Fertility/Soil Testing, 1366 W. Altheimer Drive, Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR 72704 (e-mail: tlrobert@uark.edu).

Dr. Samy Sadaka, Assistant Professor and Extension Engineer - Biosystems, Rice Research and Extension Center, 2900 Highway 130 E., Stuttgart, AR 72160 (e-mail: ssadaka@uaex.edu).

Mr. Lance Schmidt, Area Extension Rice Specialist -North Arkansas, 208 Main Street, Jackson County Extension Office, Newport, AR 72112 (e-mail: lschmidt@uaex.edu).

Dr. Bob Scott, Professor and Extension Weed Scientist, Lonoke Extension and Research Center, P.O. Box 357, Lonoke, AR 72086 (e-mail: bscott@uaex.edu).

Dr. Terry Siebenmorgen, University Professor and Director -University of Arkansas Rice Processing Program, Department of Food Science, 2650 N. Young Avenue, University of Arkansas, Fayetteville, AR 72704 (e-mail: tsiebenm@uark.edu).

Dr. Nathan Slaton, Professor and Director - Soil Testing, 1366 W. Altheimer Drive, Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR 72704 (e-mail: nslaton@uark.edu).

Dr. Yeshi Wamishe, Assistant Professor and Rice Extension Pathologist, Rice Research and Extension Center, 2900 Highway 130 E., Stuttgart, AR 72160 (e-mail: ywamishe@uaex.edu).

Dr. Brad Watkins, Associate Professor - Agricultural Economics, Rice Research and Extension Center, 2900 Highway 130 E., Stuttgart, AR 72160 (e-mail: kbwatki@uark.edu).

Dr. Charles E. Wilson, Jr., Director Rice Research and Extension Center, 2900 Highway 130 E., Stuttgart, AR 72160 (e-mail: cwilson@uaex.edu).

EDITING AND LAYOUT Laura Goforth, Communications

mailto:cwilson@uaex.edumailto:kbwatki@uark.edumailto:ywamishe@uaex.edumailto:nslaton@uark.edumailto:tsiebenm@uark.edumailto:bscott@uaex.edumailto:lschmidt@uaex.edumailto:ssadaka@uaex.edumailto:tlrobert@uark.edumailto:jnorswor@uark.edumailto:rnorman@uark.edumailto:kmolden@uark.edumailto:rmazzanti@uaex.edumailto:glorenz@uaex.edumailto:cghenry@uark.edumailto:jhardke@uaex.edumailto:bcgrigg@uark.edumailto:pcounce@uark.edumailto:rcartwright@uaex.edumailto:tbarber@uaex.edu

Table of Contents 1 Introduction ...........................................................1

2 Rice Growth and Development...............................9 Vegetative Phase .............................................................11 Reproductive Phase ........................................................14 Ripening Phase ...............................................................19 Effect of Temperature on Growth and

Development of Rice ................................................20

3 Rice Cultivars and Seed Production .....................21 Rice Seed Production .....................................................22 Genetically Modified Rice ..............................................23 Rice Cultivar Performance and

Agronomic Characteristics ........................................23 Other Cultivars ..............................................................28 Kernel Classification and Cooking Qualities...................28

4 Rice Stand Establishment .....................................31 Seeding Rate...................................................................31 Seed Treatments..............................................................33 Seeding Date and Soil Temperatures ...............................35 Tillage and Post-Seeding Management ...........................38 References ......................................................................40

5 Water-Seeded Rice ................................................41 Conventional Water-Seeding ..........................................41

Field Preparation......................................................41 Methods of Presoaking.............................................42 Water Management..................................................42 Nutrient Management .............................................42 Weed Control ..........................................................43 Insect Control ..........................................................44

No-Till Water-Seeded Rice .............................................44 Rice Stubble Management .......................................44 Nitrogen Management .............................................44

6 DD50 Computerized Rice Management Program ..........................................45

How to Use the DD50 ...................................................46 Uses of the DD50 ..........................................................47 Explanation of the DD50 Printout .................................47

Growth Stages ..........................................................48 Herbicides ...............................................................49 Other .......................................................................49 Example DD50 Printout..........................................51

7 Rice Weed Control................................................53 Herbicide Resistance Management .................................54 Clearfield Rice ................................................................54 Grass Weed Control .......................................................55

Propanil ...................................................................55 Clincher and Ricestar HT........................................57

Residual Herbicides ........................................................57 Bolero 8E.................................................................57 Command 3ME ......................................................58 Quinclorac ...............................................................58 Prowl H2O..............................................................59

Broadleaf and Aquatic Weed Control .............................59 Aim .........................................................................59 Basagran, Ultra Blazer and Storm.............................59 Grandstand-R 3SL ...................................................60 Londax 60DF ..........................................................60 Permit or Permit Plus ...............................................60 Strada ......................................................................61 Regiment .................................................................61 Grasp .......................................................................61 2,4-D.......................................................................61 Aquatic Weed Control .............................................61

Harvest Aids Sodium Chlorate ....................................62

8 Chemical Applications..........................................63 Soil Applications of Pesticides .........................................63

Ground-Based Applications .....................................63 Aerial Applications ...................................................64

Postemergence Applications of Pesticides ........................65 Ground-Based Applications .....................................65 Aerial Applications ...................................................65

Pesticide Drift.................................................................65 Flag the Technology .................................................66

Fertilizers ......