With decreasing availability of water for agriculture and increasing demand for rice production, an optimum use of irrigation water and phosphorus may guarantee sustainable rice production. Field experiments were cond...With decreasing availability of water for agriculture and increasing demand for rice production, an optimum use of irrigation water and phosphorus may guarantee sustainable rice production. Field experiments were conducted in 2003 and 2004 to investigate the effect of phosphorus and irrigation levels on yield, water productivity （WP）, phosphorus use efficiency （PUE） and income of low land rice. The experiment was laid out in randomized complete block design with split plot arrangements replicated four times. Main plot consisted of five phosphorus levels, viz. 0 （P0）, 50 （P50）, 100 （P100）, 150 （P15o）, and 200 （P200） kg/hm2, while subplots contained of irrigation times, i.e. 8 （I8）, 10 （I10）, 12 （I12）, and 14 （I14） irrigation levels, each with a water depth of 7.5 cm. Mean values revealed that P150 in combination with I10 produced the highest paddy yield （9.8 t/hm2） and net benefit （1 231.8 US$/hm2） among all the treatments. Phosphorus enhanced WP when applied in appropriate combination with irrigation level. The highest mean WP [13.3 kg/（hm2-mm）] could be achieved at Plso with 18 and decreased with increase in irrigation level, while the highest mean PUE （20.1 kg/kg） could be achieved at P100 with I10 and diminished with higher P levels. The overall results indicate that P150 along with I10 was the best combination for sustainable rice cultivation in silty clay soil.展开更多
Pregnancy, parturition, and lactation represent physiological changes of organism, which activates adaptation mechanismsdedicated to maintain homeostasis during peripartum period. Despite of the appropriate input of c...Pregnancy, parturition, and lactation represent physiological changes of organism, which activates adaptation mechanismsdedicated to maintain homeostasis during peripartum period. Despite of the appropriate input of calcium and phosphorus, thehomeostasis of phosphocalcic metabolism is sometimes faulty, in particular among animals with high production potential. The aim ofthis study is to define usual values of calcium and phosphorus during pregnancy and postpartum period. This paraclinic tool will serveto a good interpretation when used by veterinarians. A second goal is to study the influence of physiological stage on phosphocalcicmetabolism in milch cow. The hereby study was conducted on 17 Prim＇ Holsteins cow breed from 3 to 5 years old, clinically healthy,multiparous and derived from two dairy farms located in the wilaya of Constantine. Blood samples were taken from the jugular veinusing dry tubes at different physiological stages （early gestation, mid gestation, late gestation, pre-partum, one day after parturition, andone month postpartum）. All of the samples correctly identified were transported to a specialized laboratory where specific kits wereused. Blood calcium and phosphorus levels have significantly varied depending on physiological stage （p 〈 0.01）. They showed a highpre-partum variation, with a rate of 94.71 mg/mL and 61.99 mg/mL, respectively. These results can be used as means of follow-upreproduction for a better management of dairy fanning.展开更多
目的探讨慢病管理随访在血液透析患者中的应用效果。方法研究选择2015年1月—2019年1月定期就诊的160例血液透析患者为研究对象,随机分为观察组和对照组,对照组给予常规出院随访,观察组给予慢病管理随访。两组患者均随访12个月,随访前...目的探讨慢病管理随访在血液透析患者中的应用效果。方法研究选择2015年1月—2019年1月定期就诊的160例血液透析患者为研究对象,随机分为观察组和对照组,对照组给予常规出院随访,观察组给予慢病管理随访。两组患者均随访12个月,随访前后检测透析脱水量、血磷、血钙、钙磷乘积水平,采用健康调查简表(the MOS item short from health survey,SF-36)评估生活质量。结果两组患者干预前的透析脱水量、血磷、血钙、钙磷乘积水平比较差异无统计学意义(P>0.05);观察组患者干预后的钙磷乘积、血磷、透析脱水量均显著降低,组间比较差异有统计学意义(P<0.05)。观察组干预后的躯体健康、躯体角色功能、躯体疼痛、心理健康、情绪角色功能、精力、总体健康、总分评分均显著升高,与对照组比较差异有统计学意义(P<0.05)。结论慢病管理随访可有效改善血液透析患者血磷水平,提高生活质量。展开更多
基金Gomal University, Dera IsmailKhan, Pakistan for partial support
文摘With decreasing availability of water for agriculture and increasing demand for rice production, an optimum use of irrigation water and phosphorus may guarantee sustainable rice production. Field experiments were conducted in 2003 and 2004 to investigate the effect of phosphorus and irrigation levels on yield, water productivity （WP）, phosphorus use efficiency （PUE） and income of low land rice. The experiment was laid out in randomized complete block design with split plot arrangements replicated four times. Main plot consisted of five phosphorus levels, viz. 0 （P0）, 50 （P50）, 100 （P100）, 150 （P15o）, and 200 （P200） kg/hm2, while subplots contained of irrigation times, i.e. 8 （I8）, 10 （I10）, 12 （I12）, and 14 （I14） irrigation levels, each with a water depth of 7.5 cm. Mean values revealed that P150 in combination with I10 produced the highest paddy yield （9.8 t/hm2） and net benefit （1 231.8 US$/hm2） among all the treatments. Phosphorus enhanced WP when applied in appropriate combination with irrigation level. The highest mean WP [13.3 kg/（hm2-mm）] could be achieved at Plso with 18 and decreased with increase in irrigation level, while the highest mean PUE （20.1 kg/kg） could be achieved at P100 with I10 and diminished with higher P levels. The overall results indicate that P150 along with I10 was the best combination for sustainable rice cultivation in silty clay soil.
文摘Pregnancy, parturition, and lactation represent physiological changes of organism, which activates adaptation mechanismsdedicated to maintain homeostasis during peripartum period. Despite of the appropriate input of calcium and phosphorus, thehomeostasis of phosphocalcic metabolism is sometimes faulty, in particular among animals with high production potential. The aim ofthis study is to define usual values of calcium and phosphorus during pregnancy and postpartum period. This paraclinic tool will serveto a good interpretation when used by veterinarians. A second goal is to study the influence of physiological stage on phosphocalcicmetabolism in milch cow. The hereby study was conducted on 17 Prim＇ Holsteins cow breed from 3 to 5 years old, clinically healthy,multiparous and derived from two dairy farms located in the wilaya of Constantine. Blood samples were taken from the jugular veinusing dry tubes at different physiological stages （early gestation, mid gestation, late gestation, pre-partum, one day after parturition, andone month postpartum）. All of the samples correctly identified were transported to a specialized laboratory where specific kits wereused. Blood calcium and phosphorus levels have significantly varied depending on physiological stage （p 〈 0.01）. They showed a highpre-partum variation, with a rate of 94.71 mg/mL and 61.99 mg/mL, respectively. These results can be used as means of follow-upreproduction for a better management of dairy fanning.
文摘目的探讨慢病管理随访在血液透析患者中的应用效果。方法研究选择2015年1月—2019年1月定期就诊的160例血液透析患者为研究对象,随机分为观察组和对照组,对照组给予常规出院随访,观察组给予慢病管理随访。两组患者均随访12个月,随访前后检测透析脱水量、血磷、血钙、钙磷乘积水平,采用健康调查简表(the MOS item short from health survey,SF-36)评估生活质量。结果两组患者干预前的透析脱水量、血磷、血钙、钙磷乘积水平比较差异无统计学意义(P>0.05);观察组患者干预后的钙磷乘积、血磷、透析脱水量均显著降低,组间比较差异有统计学意义(P<0.05)。观察组干预后的躯体健康、躯体角色功能、躯体疼痛、心理健康、情绪角色功能、精力、总体健康、总分评分均显著升高,与对照组比较差异有统计学意义(P<0.05)。结论慢病管理随访可有效改善血液透析患者血磷水平,提高生活质量。
