中国水土保持科学2013，Vol.11Issue(2)：108-113,6.
保水剂施用量对土壤水分和番茄生长的影响
Effects of application rate of super absorbent polymers on soil moisture and Solanum lycopersicum growth
摘要
Abstract
In order to explore suitable dosage of super absorbent polymer ( SAP) in Solanum lycopersicum production in Hetao irrigation district, Inner Mongolia, with no BJ2101-L SAP for control, different dosages of BJ2101-L SAP ( 30. 0 kg/hm2, 37.5 kg/hm2, 45.0 kg/hm2 and 52.5 kg/hm2 ) were furrowing-applied before S. lycopersicum planting. Soil moisture, photosynthetic rate, growth, yields, and water use efficiency (WUE) of S. lycopersicum were determined during different growth stages. The results showed that different SAP dosage not only enhanced farming - layer soil moisture in revival stage, flowering stage and young fruit stage, but improved photosynthetic rate and transpiration rate in flowering stage and young fruit stage. In addition, the effects increased with the dosage increasing. SAP also promoted the roots, stems and leaves growth and development. Compared with the contrast, the yields increased 3. 48% , 7. 83% , 11. 01% and 10. 29% , the biomass increased 24. 9% , 56. 7% , 94. 0% and 82. 7% , the water output rate increased - 0. 2% , 3. 9% , 6. 2% and 5. 2% , WUE increased 19. 1% , 50. 4% , 81. 5% and 69. 2% at dosage of 30. 0 kg/hm2, 37. 5 kg/hm2, 45. 0 kg/hm2 and 52. 5 kg/hm , respectively. Trials results indicated that the implementation of SAP could enhance S. lycopersicum growth and WUE, as well as the dosage of 45. 0 kg/hm2 had better effects.关键词
保水剂/番茄/施用量/产量/水分利用效率Key words
SAP/ Solanum lycopersicum/ dosage/ yields/ water use efficiency分类
农业科技引用本文复制引用
张蕊,耿桂俊,白岗栓..保水剂施用量对土壤水分和番茄生长的影响[J].中国水土保持科学,2013,11(2):108-113,6.基金项目
国家"十二五"科技支撑项目"内蒙古河套灌区粮油作物节水技术集成与示范"(2011BAD29B03),"黄土丘陵沟壑区水土保持与高效农业关键技术集成与示范"(2011BAD31B05) （2011BAD29B03）
水利部科技推广计划项目"保水剂技术的推广应用"(TG1144) （TG1144）
