Forty-two years impact of chemical fertilization on soil phosphorus partition and distribution under rice-based cropping systems.

Understanding of soil phosphorus (P) transformation is crucial to minimize its edge-of-field loss associated with ecosystem disservices. A sequential chemical extraction procedure was used to assess the impact (42 years) of organic and chemical fertilizations on soil P partition and distribution under subtropical rice based cropping systems. Experimental treatments were control, N, NP, NK, NS, NZn, NPK, NSZn, NPKSZn, and N+FYM (farmyard manure). Composite soils were collected from 0-5, 20-25 and 40-45 cm depths, extracted, and analyzed for soluble P, NaHCO3-P (inorganic and organic), NaOH-P (inorganic and organic), acid soluble (H2SO4), and residual P fractions. The NPKSZn significantly increased the concentration of soil inorganic P compared to other treatments. When FYM was applied together with N fertilizer, the organic P concentration increased, which was statistically identical to NPKSZn and NPK treatments. While the labile (NaHCO3-Pi, NaOH-Po), residual, and total P concentrations were stratified at 0-5 cm depth, the concentration of NaHCO3-Po, NaOH-Pi, and acidic P fractions increased with soil depth. The soluble, NaHCO3 (Pi and Po), NaOH-Pi and NaOH-Po, acidic, and residual P fractions constituted about 0.4, 6.6, 1.7, 21.3, 37.7, and 8.3%, respectively, of the total P. A higher concentration of the labile P at the surface soil indicated that the impact of chemical fertilization stratified the available P for plant uptake or susceptible to edge-of-field loss. The NPKSZn and N+FYM both had higher NaHCO3-Po and NaOH-Po concentrations within 40-45 cm and 0-25 cm depths, suggesting that N+FYM could promote the transformation of non-labile P into labile P pool, by reducing P fixation by soil and transport them at 20-45 cm depth. It is concluded that long-term fertilization increased the concentration of P pools especially labile P by saturating the soil adsorption sites especially in surface soil.

Comparative Study between Paracervical Block and Non-Steroidal Anti Inflammatory Drug for Relief of Pain during Manual Vacuum Aspiration Procedure.

The incidence of first trimester pregnancy loss is around 10.0-20.0% of registered pregnancies. Manual vacuum aspiration is a safe, effective and acceptable option of treatment for patients diagnosed with first trimester pregnancy loss. Main disadvantage of MVA is the pain caused by manipulation of the cervix, the uterine suction and the cervical dilatation. This study showed the way how the pain and discomfort might be reduced. This was a cross-sectional comparative study was conducted at the obstetrics and Gynecological Department of Sadar hospital, Manikganj, Bangladesh from January 2017 to December 2017. All the consecutive women admitted and diagnosed as incomplete abortion, missed abortion and anembryonic pregnancy (blighted ovum) were included in this study. Sampling technique was purposive sampling. The objective of this study was to compare the effectiveness of paracervical block anesthesia with non-steroidal anti inflammatory drug (NSAID) for relief of pain during the manual vacuum aspiration procedure for the treatment of first trimester pregnancy loss. Total 120 cases were included in this study. Assigned study population were divided into two groups like Group A and Group B. 60 of the study population were included in Group A who were given paracervical block anesthesia 3 minutes before the procedure. Another 60 study population was included in Group B who was given diclofenac 75mg intramuscular injection, 30 minutes before the procedure. Both intraoperative and postoperative pain level was evaluated by using visual analog scale ranged from (0-10 points) 30 minutes after the procedure. At the same time the satisfaction level of the study population were measured by 5 points lickert scale. Regarding clinical profile of the study population it showed no significant difference in case of mean age, mean gestational age and mean duration of the procedure between two groups. The mean intraoperative pain score in Group A was 4.0±1.3, in Group B it was 5.4±1.5 (p=0.001) which was significant. So it showed that paracervical block anesthesia significantly reduced the pain in relation to diclofenac 75mg intramuscular injection. Mean postoperative pain level 30 minutes after procedure in Group A was 2.2±0.4 and in Group B was 2.4±0.4 (p=0.343), where post-operative pain is lower in Group A than Group B. Though this difference is not statistically significant (p=0.343). In Group A 73.0% (n=44) and in Group B 43.0% (n=26) study population were agreed that the procedure was easy. Most common adverse effect was epigastric pain which was 1.7% (n=1) in Group A and 10.0% (n=7) in Group B. Paracervical block significantly reduces intraoperative pain during Manual Vacuum Aspiration (MVA) procedure in the treatment of first trimester pregnancy loss in comparison to intramuscular injection of diclofenac. In conclusion it might be mentioned that regarding paracervical block anesthesia, efficacy is higher and side effects are less. Moreover paracervical block anesthesia is cost effective.

Effect of Meconium Staining Amniotic Fluid on Fetal Outcome.

Meconium-stained amniotic fluid is the passage of meconium by a fetus in utero during the antenatal period or in labour. It has for long been considered to be a bad predictor of fetal distress and meconium aspiration syndrome (MAS). The objective of this study was to find out the fetal outcome of MSAF and clear amniotic fluid. This cross- sectional comparative study was carried out in Upazilla Health Complex, Palash, Narshingdi from July 2016 to June 2017. A total of 100 pregnant women among them 50 women with MSAF and 50 women with clear liquor were studied to see the record of ANC, mode of delivery and fetal outcome by APGAR score. Study showed that among MSAF group 76.0% (n=38) had irregular ANC and 24.0% (n=12) had regular ANC whereas in clear liquor 86.0% (n=43) had regular ANC 14.0% had irregular ANC. Among MSAF (50 cases) thick meconium was in 20 cases (40.0%) and thin meconium was in 30 cases (60.0%). Regarding mode of delivery 52.0% (n=26) MSAF cases had instrumental delivery and Caesarean section compared to 24.0% (n=12) in clear liquor group. Regarding thick MSAF among 40.0% (n=20), (n=14) had low APGAR score and (n=6) had normal score at one minute and (n=9) low APGAR score and (n=11) normal score at five minutes. In clear liquor, among 100.0% (n=50), 20.0% (n=10) had low APGAR score and 80.0% (n=40) had normal score at one-minute and at five minutes 8.0% (n=4) had low APGAR score and 92.0% (n=46) had normal score. Among MSAF 26.0% (n=13) were admitted to SCBU compare to 12.0% (n=6) in clear liquor group. The mean SCBU stay was 3.1 days in MSAF whereas 1.2 days in clear liquor. Among MSAF babies 4.0% (n=2) had MAS compared to no MAS in clear liquor group. Regarding Survivalist 92.0% (n=46) were alive in MSAF whereas 100.0% all (n=50) were alive in clear liquor group.