The research designed four application quantities of 0, 2 250, 4 500 and 6 750 g/hm2 based on Liangyou No. 959 to explore the effects of microbial inocu- lure fertilizer on growth and yield of super hybrid rice. The r...The research designed four application quantities of 0, 2 250, 4 500 and 6 750 g/hm2 based on Liangyou No. 959 to explore the effects of microbial inocu- lure fertilizer on growth and yield of super hybrid rice. The results indicate that the treatment with traditional fertilizers and 4 500 g/hm2 HYT microbial inoculum fertilizer performed the best, where average number of tiller was 2.4 more than that of the control; the number of effective ear was 11.05% higher; yield increased by 10.3%. These have demonstrated that microbial inoculum fertilizer is of great value in pro- motion on super hybrid rice production.展开更多
The status, advantages and disadvantages of rice production in East Timor were investigated and analyzed, the results of comparison test and demonstrative cultivation through introducing 15 Chinese hybrid rice combina...The status, advantages and disadvantages of rice production in East Timor were investigated and analyzed, the results of comparison test and demonstrative cultivation through introducing 15 Chinese hybrid rice combinations into East Timor were summarized, the feasibility of developing hybrid rice in East Timor to realize food self-sufficiency were discussed and demonstrated, and the main corresponding technical strategies were proposed in this paper.展开更多
In order to improve the utilization efficiency of hybrid rice seeds, the effects of seed-coating agents on hybrid rice seeds with dehiscent glumes were investigated. Total six kinds of seed-coating agents were selecte...In order to improve the utilization efficiency of hybrid rice seeds, the effects of seed-coating agents on hybrid rice seeds with dehiscent glumes were investigated. Total six kinds of seed-coating agents were selected, i.e., 20.5% imidacloprid ·prochloraz FS, 30.5% imidacloprid oprochloraz FS, 23.0% thiamethoxam · hymexazol·prochloraz FS, Ruisheng WS, Shileshi FS and Liangdun FS, and their effects of seeds of Longliangyou Huazhan and T You 272 were investigated. The results showed that when the percentage of glume-dehiscent seeds reached 10%, 20.5% imidacloprid .prochloraz significantly improved the germination rate of Longliangyou Huazhan, which was 4.33% higher than that in the control group, and the seedling rate of Longliangyou Huazhan remained unchanged; 30.5% imidacloprid. prochloraz did not improved the germination rate of T You 272, but improved its seedling rate, which was 7.66% higher than that in the control group. When the percentage of glume-dehiscent seeds reached 20%, 20.5% imidacloprid ·prochloraz and 30.5% imidacloprid.prochloraz improved the germination rate of T You 272 by 3.50% and 4.83%, respectively, and its seedling rate did not decline. In conclusion, seed-coating agents have certain repair effect on glume-dehiscent rice seeds; 20.5% imidacloprid ·prochloraz and 30.5% imidacloprid ·prochloraz could improve the efficiency of Longliangyou Huazhan and T You 272 with small amounts of glume-dehiscent seeds.展开更多
This paper presented the current status quo of hybrid rice in India from the breeding,seed production and extension and the existing problems and barriers,based on which the corresponding countermeasures were put forw...This paper presented the current status quo of hybrid rice in India from the breeding,seed production and extension and the existing problems and barriers,based on which the corresponding countermeasures were put forward.展开更多
Rice production, hybrid rice development, breeding, production of hybrid seeds, and popularization condition were introduced in this study. The chief obstacles preventing hybrid rice from growing have been found and t...Rice production, hybrid rice development, breeding, production of hybrid seeds, and popularization condition were introduced in this study. The chief obstacles preventing hybrid rice from growing have been found and the concerned countermeasures were put forward.展开更多
Sustaining rice （Oryza sativa L.） productivity at high level is a great challenge, particularly in areas where rice productivity declines in spite of following recommended nutrient management practices. Nutrient man...Sustaining rice （Oryza sativa L.） productivity at high level is a great challenge, particularly in areas where rice productivity declines in spite of following recommended nutrient management practices. Nutrient management by integrating organic manures, inorganic fertilizers and biofertilizers may play an important role in improving and sustaining rice productivity. In this study, the authors tried to evaluate the suitable proportion of organic manures and inorganic fertilizers along with biofertilizer to maximize growth and productivity of hybrid rice on sandy-loam lateritic soils of West Bengal, India. The crop having 50% recommended dose of fertilizer （RDF） ＋ 50% recommended dose of nitrogen （RDN） through mustard oil cake （MOC） and 75% RDF ＋ 25% RDN through MOC ＋ biofertilizer significantly increased plant height, number of tillers/m2, leaf area index （LAI）, dry matter accumulation （DMA） and crop growth rate （CGR） at initial and vital period of grain growth over those of 25% RDF ＋ 75% RDN through MOC and 100% RDN through MOC. The former two treatments also increased number of panicles/m2 and number of grains/panicle over those of only organic manuring （100% RDN） or only chemical fertilization （100% RDF） or 25% RDF ＋ 75% RDN through MOC. Crop with 75% RDF ＋ 25% RDN through MOC ＋ biofertilizer or 50% RDF ＋ 50% RDN through MOC produced 20.2%-33.8% higher grain yield and 11.0%-33.3% greater straw yield, and paid higher gross and net returns over other treatments. This study suggests growing hybrid rice with 75% RDF ＋ 25% RDN through MOC ＋ biofertilizer or 50% RDF ＋ 50% RDN through MOC for better growth, higher productivity and greater profit.展开更多
基金Supported by National Natural Science Foundation of China(31301264)National Science and Technology Project for Food Production(Hunan)(2011BAD16B01,2012BAD04B10,2013BAD07B11)+3 种基金High-yield and Hich-tech Research and Demonstration of Two-line Hybrid Rice(2012BAD07B02)Integration of Water and Fertilizer Optimized Management Technology Research in the High-yield Rice Area in the Yangtze River(2013BAD07B14/4)Demonstration and Application of Spectrum Detection Technology System of Rice Production in Double-Cropping Ricein Hunan Province(201303109-3)China Special Fund for Meteorological Research in the Public Interest(GYHY201206020)~~
文摘The research designed four application quantities of 0, 2 250, 4 500 and 6 750 g/hm2 based on Liangyou No. 959 to explore the effects of microbial inocu- lure fertilizer on growth and yield of super hybrid rice. The results indicate that the treatment with traditional fertilizers and 4 500 g/hm2 HYT microbial inoculum fertilizer performed the best, where average number of tiller was 2.4 more than that of the control; the number of effective ear was 11.05% higher; yield increased by 10.3%. These have demonstrated that microbial inoculum fertilizer is of great value in pro- motion on super hybrid rice production.
基金Supported by Foreign Aid Funds of Ministry of CommerceAid East Timor Agricultural Technology of Hybrid Rice Cooperation Project~~
文摘The status, advantages and disadvantages of rice production in East Timor were investigated and analyzed, the results of comparison test and demonstrative cultivation through introducing 15 Chinese hybrid rice combinations into East Timor were summarized, the feasibility of developing hybrid rice in East Timor to realize food self-sufficiency were discussed and demonstrated, and the main corresponding technical strategies were proposed in this paper.
基金Supported by Production-study-research Cooperation Projects of Hunan University of Humanities(2014CXY06,2013CXY04)Industrial Incubation Projects for Universities and Colleges of Hunan Province(13CY030)~~
文摘In order to improve the utilization efficiency of hybrid rice seeds, the effects of seed-coating agents on hybrid rice seeds with dehiscent glumes were investigated. Total six kinds of seed-coating agents were selected, i.e., 20.5% imidacloprid ·prochloraz FS, 30.5% imidacloprid oprochloraz FS, 23.0% thiamethoxam · hymexazol·prochloraz FS, Ruisheng WS, Shileshi FS and Liangdun FS, and their effects of seeds of Longliangyou Huazhan and T You 272 were investigated. The results showed that when the percentage of glume-dehiscent seeds reached 10%, 20.5% imidacloprid .prochloraz significantly improved the germination rate of Longliangyou Huazhan, which was 4.33% higher than that in the control group, and the seedling rate of Longliangyou Huazhan remained unchanged; 30.5% imidacloprid. prochloraz did not improved the germination rate of T You 272, but improved its seedling rate, which was 7.66% higher than that in the control group. When the percentage of glume-dehiscent seeds reached 20%, 20.5% imidacloprid ·prochloraz and 30.5% imidacloprid.prochloraz improved the germination rate of T You 272 by 3.50% and 4.83%, respectively, and its seedling rate did not decline. In conclusion, seed-coating agents have certain repair effect on glume-dehiscent rice seeds; 20.5% imidacloprid ·prochloraz and 30.5% imidacloprid ·prochloraz could improve the efficiency of Longliangyou Huazhan and T You 272 with small amounts of glume-dehiscent seeds.
基金Supported by the Scientific Cooperation Project of the Ministry of Science and Technology Innovation of Malaysia (07-04-01PB015)~~
文摘This paper presented the current status quo of hybrid rice in India from the breeding,seed production and extension and the existing problems and barriers,based on which the corresponding countermeasures were put forward.
基金Supported by Cooperation Project of Science and Technology Innovation Ministry of Malaysia.(07-04-01PB015)~~
文摘Rice production, hybrid rice development, breeding, production of hybrid seeds, and popularization condition were introduced in this study. The chief obstacles preventing hybrid rice from growing have been found and the concerned countermeasures were put forward.
文摘Sustaining rice （Oryza sativa L.） productivity at high level is a great challenge, particularly in areas where rice productivity declines in spite of following recommended nutrient management practices. Nutrient management by integrating organic manures, inorganic fertilizers and biofertilizers may play an important role in improving and sustaining rice productivity. In this study, the authors tried to evaluate the suitable proportion of organic manures and inorganic fertilizers along with biofertilizer to maximize growth and productivity of hybrid rice on sandy-loam lateritic soils of West Bengal, India. The crop having 50% recommended dose of fertilizer （RDF） ＋ 50% recommended dose of nitrogen （RDN） through mustard oil cake （MOC） and 75% RDF ＋ 25% RDN through MOC ＋ biofertilizer significantly increased plant height, number of tillers/m2, leaf area index （LAI）, dry matter accumulation （DMA） and crop growth rate （CGR） at initial and vital period of grain growth over those of 25% RDF ＋ 75% RDN through MOC and 100% RDN through MOC. The former two treatments also increased number of panicles/m2 and number of grains/panicle over those of only organic manuring （100% RDN） or only chemical fertilization （100% RDF） or 25% RDF ＋ 75% RDN through MOC. Crop with 75% RDF ＋ 25% RDN through MOC ＋ biofertilizer or 50% RDF ＋ 50% RDN through MOC produced 20.2%-33.8% higher grain yield and 11.0%-33.3% greater straw yield, and paid higher gross and net returns over other treatments. This study suggests growing hybrid rice with 75% RDF ＋ 25% RDN through MOC ＋ biofertilizer or 50% RDF ＋ 50% RDN through MOC for better growth, higher productivity and greater profit.
