A field trial was conducted to evaluate the role of boron （B） application at different growth stages in improving the growth,yield and net economic return of rice at farmer＇s fields during summer season,2009.Boron ...A field trial was conducted to evaluate the role of boron （B） application at different growth stages in improving the growth,yield and net economic return of rice at farmer＇s fields during summer season,2009.Boron was soil applied （1.5 kg/hm2） at the transplanting,tillering,flowering and grain formation stages of rice;foliar applied （1.5% B solution） at the tillering,flowering and grain formation stages of rice,and dipped seedling roots in 1.5% B solution before transplanting;while control plots did not apply any B.Boron application （except dipping of seedling roots in B solution,which caused toxicity and reduced the number of tillers and straw yield than control） substantially improved the rice growth and yield.However,soil application was better in improving the number of grains per panicle,1000-grain weight,grain yield,harvest index,net economic income and ratio of benefit to cost compared with the rest of treatments.Overall,for improving rice performance and maximizing the net economic returns,B might be applied as soil application at flowering.展开更多
Through field plot experiment,we research the influencing factors of cowpea yield and quality after applying boron and molybdenum microelement fertilizer. Results show that the application of boron and molybdenum micr...Through field plot experiment,we research the influencing factors of cowpea yield and quality after applying boron and molybdenum microelement fertilizer. Results show that the application of boron and molybdenum microelement fertilizer can significantly increase the yield and improve the quality of cowpea. Compared with the control,yield per mu increases by 5. 08- 18. 86%; N content increases by 4. 27%-11. 28%; P content increases by 2. 13%- 13. 57%; K content increases by 2. 00%- 18. 48%; crude protein increases by 4. 16%-19. 94%; vitamin C increases by 2. 71%- 11. 79%; nitrate content decreases by 5%- 15%. Besides,it is better to combine boron with molybdenum than to use each of them separately.展开更多
Effects of different boron (B) application methods on growth and yield of sunflower hybrids were checked out at Agronomic Research Farm, University of Agriculture, Faisalabad, Pakistan during spring, 2013. Field exper...Effects of different boron (B) application methods on growth and yield of sunflower hybrids were checked out at Agronomic Research Farm, University of Agriculture, Faisalabad, Pakistan during spring, 2013. Field experiment was conducted by considering three sunflower hybrids viz., Patron 551, Patron 851 and S-278 along with different methods of B application i.e. no B application, seed treatment @ 0.05% B, soil B application @ 2 kg·ha-1 at sowing, soil B application @ 2 kg·ha-1 at ray floret stage and foliar application of B @ 200 mg·L-1 at ray floret stage. Uttermost plant height (150.78 cm), the number of leaves per plant (22.67) and stem diameter (1.62 cm) were accomplished when boron was soil applied @ 2 kg·ha-1 at sowing. Significantly higher head diameter (18.30 cm), number of achene per head (1266.44), 1000-achene weight (43.17 g) achene yield (2039.33 kg·ha-1), biological yield (9223.11 kg·ha-1) and harvest index (22.10%) were registered when boron was foliar applied @ 200 mg·L-1 at ray floret stage. Among sunflower hybrids, Patron 551 produced significantly higher growth and yield attributes as compared with Patron 851 and S-278 hybrids. This study suggested that the selection of Patron 551 hybrid with practicing boron foliar application @ 200 mg·L-1 at ray floret stage could be helpful in achieving the sunflower crop genetic potential.展开更多
文摘A field trial was conducted to evaluate the role of boron （B） application at different growth stages in improving the growth,yield and net economic return of rice at farmer＇s fields during summer season,2009.Boron was soil applied （1.5 kg/hm2） at the transplanting,tillering,flowering and grain formation stages of rice;foliar applied （1.5% B solution） at the tillering,flowering and grain formation stages of rice,and dipped seedling roots in 1.5% B solution before transplanting;while control plots did not apply any B.Boron application （except dipping of seedling roots in B solution,which caused toxicity and reduced the number of tillers and straw yield than control） substantially improved the rice growth and yield.However,soil application was better in improving the number of grains per panicle,1000-grain weight,grain yield,harvest index,net economic income and ratio of benefit to cost compared with the rest of treatments.Overall,for improving rice performance and maximizing the net economic returns,B might be applied as soil application at flowering.
基金Supported by Hainan Natural Science Foundation(311077)
文摘Through field plot experiment,we research the influencing factors of cowpea yield and quality after applying boron and molybdenum microelement fertilizer. Results show that the application of boron and molybdenum microelement fertilizer can significantly increase the yield and improve the quality of cowpea. Compared with the control,yield per mu increases by 5. 08- 18. 86%; N content increases by 4. 27%-11. 28%; P content increases by 2. 13%- 13. 57%; K content increases by 2. 00%- 18. 48%; crude protein increases by 4. 16%-19. 94%; vitamin C increases by 2. 71%- 11. 79%; nitrate content decreases by 5%- 15%. Besides,it is better to combine boron with molybdenum than to use each of them separately.
文摘Effects of different boron (B) application methods on growth and yield of sunflower hybrids were checked out at Agronomic Research Farm, University of Agriculture, Faisalabad, Pakistan during spring, 2013. Field experiment was conducted by considering three sunflower hybrids viz., Patron 551, Patron 851 and S-278 along with different methods of B application i.e. no B application, seed treatment @ 0.05% B, soil B application @ 2 kg·ha-1 at sowing, soil B application @ 2 kg·ha-1 at ray floret stage and foliar application of B @ 200 mg·L-1 at ray floret stage. Uttermost plant height (150.78 cm), the number of leaves per plant (22.67) and stem diameter (1.62 cm) were accomplished when boron was soil applied @ 2 kg·ha-1 at sowing. Significantly higher head diameter (18.30 cm), number of achene per head (1266.44), 1000-achene weight (43.17 g) achene yield (2039.33 kg·ha-1), biological yield (9223.11 kg·ha-1) and harvest index (22.10%) were registered when boron was foliar applied @ 200 mg·L-1 at ray floret stage. Among sunflower hybrids, Patron 551 produced significantly higher growth and yield attributes as compared with Patron 851 and S-278 hybrids. This study suggested that the selection of Patron 551 hybrid with practicing boron foliar application @ 200 mg·L-1 at ray floret stage could be helpful in achieving the sunflower crop genetic potential.
