Rainfed rice - IRRI books - International Rice Research Institute

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Open wells with large diameters located in the midland region, which has 37 open wells charged with seepage water and water from adjacent fields. Deepening of existing ponds to hold additional water. In situ water conservation Runoff collectors across the slope in uplands The runoff collectors check the loss of surface rainwater. The water that collects in the interceptors moves laterally and serves to charge the root zones. This keeps the soil wet, thus facilitating the' growth of good rice crops. The effects of runoff collectors on rice yields are given in the table. Water Saving, Recycling and Sequential Use Technologies: A Case Study Pond water available after deepening Before After Pond area (ha) 0.25-1.30 0.25-1.30 Depth (m) 0.50-0.70 1.00-1.30 Duration (mo) 4-7 (Jul-Jan) 6-11 (Jul-May) Volume (ha m) 0.12-0.91 0.25-1.69 Locations of Grain Straw Total runoff interceptors yield yield /m 2 (t/ha) (t/ha) Upper slope 1.87 2.94 36049 Middle slope 1.98 3.03 36668 Lower slope 2.00 2.63 43550 Lowest slope 2.22 3.14 44370 Without interception 1.43 2.39 30827 219
220 RAINFED RICE A SOURCEBOOK OF BEST PRACTICES AND STRATEGIES IN EASTERN INDIA Ploughing across the slope Ploughing and other cultural operations are undertaken across the slope. This controls surface runoff of rainwater. This water then percolates into the soil. Water recycling This refers to the judicious use of stored rainwater in ponds/wells to provide life-saving irrigation to rice during periods of drought and for growing sequential crops. The recycling of water in the village helps in: timely nursery raising; mitigation of drought; improving the chances of an assured crop; increasing cropping intensity; improving crop productivity; generating employment throughout the year; and improving livestock health through more fodder production.
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The International Rice Research Ins
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RAINFED RICE A SOURCEBOOK OF BEST P
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vi Foreword About 45% of the world
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RAINFED RICE A SOURCE BOOK OF BEST
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Utilisation and Management of Natur
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Rice Biodiversity and Genetic Wealt
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32 RAINFED RICE A SOURCEBOOK OF BES
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Socio-Economic Constraints in Rice
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Developing Sustainable Technologies
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Agro-Ecosystem Analysis for Rainfed
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Agro-Ecosystem Analysis for Rainfed
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Agro-ecosystem analysis Agro-ecosys
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GIS in extrapolation of location-sp
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Rice-growing sub-ecosystems in Sult
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Influence of Agro-Ecosystem Compone
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Principles for Improving and Stabil
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Water management Adopt efficient wa
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Major Cropping Systems and Their Ma
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Major Cropping Systems and Their Ma
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etter in the broadcast and row-seed
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Comparative Analysis of Different C
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Comparative Analysis of Different C
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Flood-prone areas Flood-prone areas
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Boro Rice Cultivation B oro rice cu
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Integration of Boro with DWR When t
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Management of Rice in Flood-Prone A
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Transplant 35-45-day-old seedlings
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Delayed transplanting Seedbed prepa
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Preparing a site Field dikes 1. Pre
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5. Put the feed in hanging trays in
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Crop Establishment Practices in Rai
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11. For medium-duration varieties,
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Crop Establishment Practices in Rai
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Comparative Analysis of Direct Sowi
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Machine transplanting Manual and se
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Direct sowing vs transplanting: a c
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The beushening process Beushening S
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Less cash inputs required Besides n
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Tillage Practices and Implements fo
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Tillage implements Function Bullock
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Improving the Yields of Traditional
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Threats to the erosion of tradition
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Farmers’ Participatory Plant Bree
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Farmers' Participatory Plant Breedi
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Farmers’ Participatory Plant Bree
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Identification of Donors for Rice B
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Rainfed lowlands Varietal needs for
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Identification of Donors for Rice B
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Varietal Development: Evaluation an
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Trends in varietal improvement In t
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Some small increases can also be ac
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Rainfed Rice Seed Production System
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RAINFED RICE A SOURCEBOOKOF BEST PR
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Influence of High-Quality Seeds on
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Page 179 and 180: Dealing with Decline in Soil Fertil
Page 189 and 190: Integrated Nutrient Management What
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Page 197 and 198: Comparative Analysis of Different N
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Page 217 and 218: Indigenous Rainwater Management R a
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Page 227: Water Saving, Recycling and Sequent
Page 232: Weed Management
Page 245 and 246: Cost Effectiveness of Weed Manageme
Page 252 and 253: Pest Control Alternatives for the R
Page 254 and 255: Diseases affecting grains Blast Bro
Page 256 and 257: Pest control in rainfed upland rice
Page 258 and 259: Pest Control Alternatives for the R
Page 260 and 261: Gall midge Summer ploughing. Timely
Page 262 and 263: Disease Management Strategies I n n
Page 264 and 265: Sheath blight (caused by Rhizoctoni
Page 266 and 267: Disease Management Strategies Contr
Page 268 and 269: To know the intensity of the rat po
Page 270 and 271: Rat Population Dynamics and Managem
Page 272 and 273: Insecticide Use, Precautions and In
Page 274 and 275: Insecticide Use, Precautions and in
Page 276 and 277: First-aid precautions Insecticide U
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hepatic carcinoma; acute liver dama
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Effects of Pesticides on Humans and
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Mechanical practices on IPM Hand-pi
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Participatory Farming Systems Techn
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Annexes
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286 RAINFED RICE A SOURCEBOOK OF BE
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290 Production staff Editors Nilam
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Rainfed rice - IRRI books - International Rice Research Institute

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