scholarly journals Fertility status of the rubber growing tracts in agro- ecological units of Southern Kerala

2018 ◽  
Vol 13 (1and2) ◽  
pp. 26-32
Author(s):  
Rekha V.R. Nair ◽  
Usha Mathew
Keyword(s):  
Fertility Status

Distribution and Determinants of Fallow Land among Farmers of Central Dry Zone of Karnataka

2020 ◽  
pp. 390-395
Keyword(s):  
Arable Land ◽  
Negative Relationship ◽  
Fallow Land ◽  
Tobit Regression ◽  
Total Size ◽  
High Tendency ◽  
Fertility Status ◽  
Dry Zone ◽  
Land Holdings ◽  
Tobit Regression Model

Farmers in dry regions of India have a high tendency for leaving their land fallow. To decipher this phenomenon, the study was carried out in the Tumkur district of the central dry zone of Karnataka. Results from the study revealed a positive relationship between the size of land holdings and land fallow. The major reason stated by farmers for leaving their fallow land was the scarcity of rainfall or irrigation, and poor land fertility status. The Tobit regression model was fitted to study the determinants of the decision of farmers to keep the arable land fallow, where, dependent variable considered was the share of fallow land in the total size of landholding of farm households. It was found that the availability of water for irrigation and family labour has a negative relationship with fallow land. Other factors determining the extent of fallow land were the distance of land from residences, poor land fertility status and availability of credit.

scholarly journals Current Fertility Status Does Not Predict Sociosexual Attitudes and Desires in Normally Ovulating Women

2021 ◽  
Vol 19 (1) ◽  
pp. 147470492097631 ◽  
Author(s):  
Andrew G. Thomas ◽  
Stephanie L. Armstrong ◽  
Steve Stewart-Williams ◽  
Benedict C. Jones
Keyword(s):  
Relationship Status ◽  
Counting Method ◽  
Ongoing Debate ◽  
Fertility Status ◽  
Current Fertility

Previous research has found that women at peak fertility show greater interest in extra-pair sex. However, recent replications have failed to detect this effect. In this study, we add to this ongoing debate by testing whether sociosexuality (the willingness to have sex in the absence of commitment) is higher in women who are at peak fertility. A sample of normally ovulating women ( N = 773) completed a measure of sociosexuality and had their current fertility status estimated using the backward counting method. Contrary to our hypothesis, current fertility was unrelated to sociosexual attitudes and desires, even when relationship status was included as a moderator. These findings raise further doubts about the association between fertility and desire for extra-pair sex.

FERTILITY STATUS OF PROCESSING TOMATO GROWING AREAS IN THE WESTERN PART OF TURKEY

1994 ◽  
pp. 251-258
Author(s):  
N. Eryuce ◽  
R. Kilinc ◽  
D. Anac ◽  
H. Hakerlerler ◽  
H. Colakoglu
Keyword(s):  
Processing Tomato ◽  
Fertility Status

Development of the first urinary reproductive hormone ranges referenced to independently determined ovulation day

2015 ◽  
Vol 53 (7) ◽  
Author(s):  
Sarah Johnson ◽  
Sarah Weddell ◽  
Sonya Godbert ◽  
Guenter Freundl ◽  
Judith Roos ◽  
...  
Keyword(s):  
Menstrual Cycle ◽  
Hormone Level ◽  
Ovarian Follicle ◽  
Reproductive Hormone ◽  
Fertility Status ◽  
Daily Urine ◽  
Follicle Size ◽  
Status Information ◽  
Progesterone Metabolite ◽  
Level Analysis

AbstractUrinary hormone level analysis provides valuable fertility status information; however, previous studies have not referenced levels to the ovulation day, or have used outdated methods. This study aimed to produce reproductive hormone ranges referenced to ovulation day determined by ultrasound.Women aged 18–40 years (no reported infertility) collected daily urine samples for one complete menstrual cycle. Urinary luteinising hormone (LH), estrone-3-glucuronide (E3G, an estradiol metabolite), follicle stimulating hormone (FSH) and pregnanediol-3-glucuronide (P3G, a progesterone metabolite) were measured using previously validated assays. Volunteers underwent trans-vaginal ultrasound every 2 days until the dominant ovarian follicle size reached 16 mm, when daily scans were performed until ovulation was observed. Data were analysed to create hormone ranges referenced to the day of objective ovulation as determined by ultrasound.In 40 volunteers, mean age 28.9 years, urinary LH surge always preceded ovulation with a mean of 0.81 days; thus LH is an excellent assay-independent predictor of ovulation. The timing of peak LH was assay-dependent and could be post-ovulatory; therefore should no longer be used to predict/determine ovulation. Urinary P3G rose from baseline after ovulation in all volunteers, peaking a median of 7.5 days following ovulation. Median urinary peak E3G and FSH levels occurred 0.5 days prior to ovulation. A persistent rise in urinary E3G was observed from approximately 3 days pre- until 5 days post-ovulation.This study provides reproductive hormone ranges referenced to the actual day of ovulation as determined by ultrasound, to facilitate examination of menstrual cycle endocrinology.

Chemical properties and fertility status of paddy soils influenced by continuous rice cultivation in Northern Iran

1993 ◽  
Vol 24 (1-2) ◽  
pp. 93-107
Author(s):  
M. A. Bahmaniar ◽  
M. J. Malakouti ◽  
M. H. Roozitalab
Keyword(s):  
Chemical Properties ◽  
Rice Cultivation ◽  
Paddy Soils ◽  
Northern Iran ◽  
Fertility Status

Fertility status, dominance, and scent marking behavior of family-housed female cotton-top tamarins (Saguinus oedipus) in absence of their mothers

1989 ◽  
Vol 18 (3) ◽  
pp. 177-189 ◽  
Author(s):  
Michael Heistermann ◽  
Eckhard Kleis ◽  
Ekkehard Pröve ◽  
Hans-Jürgen Wolters
Keyword(s):  
Scent Marking ◽  
Saguinus Oedipus ◽  
Fertility Status

Soil Fertility Status and Potential Organic Inputs for Improving Small Holder Crop Production in the Interior Savanna Zone of Ghana

2005 ◽  
Vol 25 (4) ◽  
pp. 69-92 ◽  
Author(s):  
J. O. Fening ◽  
T. Adjei-Gyapong ◽  
E. Yeboah ◽  
E. O. Ampontuah ◽  
G. Quansah ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Crop Production ◽  
Fertility Status ◽  
Soil Fertility Status ◽  
Small Holder ◽  
Savanna Zone

scholarly journals Soil fertility status of some of the intensive crop growing areas under major agroecological zones of Bangladesh

2016 ◽  
Vol 41 (4) ◽  
pp. 735-757 ◽  
Author(s):  
NC Shil ◽  
MA Saleque ◽  
MR Islam ◽  
M Jahiruddin
Keyword(s):  
Organic Matter ◽  
Soil Fertility ◽  
Calcareous Soils ◽  
Clay Content ◽  
Soil Samples ◽  
Exchangeable K ◽  
Low Level ◽  
Fertility Status ◽  
Agroecological Zones ◽  
High Level

Laboratory studies on soil fertility evaluation was carried out across major agroecological zones (AEZs) of Bangladesh to know the nutrient status of soils and to relate those with soil properties like pH, organic matter, CEC, and clay content. Thirty five composite soil samples were collected from intensive crop growing sites, which covered 17 AEZs of Bangladesh. After proper processing, the samples were analyzed for texture, pH, organic carbon, CEC, exchangeable cations (K, Ca, Mg and Na), total N, available P and S following standard methods. The textural class of the soils collected from AEZ 12 and 13 appeared to be mostly clay. Clay loam soil was found in AEZ 4, 8, 9, 11, 25 and 28. Loamy soil was seen in AEZ 1 while AEZ 22, 23 and 29 were mostly sandy textured. The results revealed that 65.7% of the tested soil was acidic while 25.7% was alkaline in nature. All the tested soils showed lower pHKCl compared to pHH2O thus possessed negative charge. About 68.6% of the collected soils contained low (1.10-1.70%) level of organic matter, 25.7% soils retained it at medium level (1.71-2.40) and 5.7% soils at very low level (<1.0%). All the tested soils appeared to be deficient (< 0.12%) in nitrogen content. 68.6% soil samples had the low level of available P while only 8.6% retained it an optimum amount. About 80% of the tested soils contained low level of available S (7.9- 14.7 mg kg -1) although coastal regions soils hold higher amount of available S. High CEC (20-38 cmol kg-1) was found in clay rich soils of AEZ 10, 11, 12, and 13. Study revealed that 40% of the collected soils were very low, 31.4% were low, 8.6% each of medium and optimum, and 11.4% contained high level of exchangeable K. The calcareous soils (AEZ 10, 11, 12 and 13) contained very high level of Ca. Non calcareous soils also showed fairly good level of Ca content except AEZ 1, 3, 23 and 29. Sandy textured soils of greater Dinajpur, Rangpur, Moulvibazar showed lower level of exchangeable Mg. About 86% of the tested soils had the lower (< 2%) potassium saturation percentage (KSP), which needs K application for sustainable crop production. Estimate showed that 44% variability for CEC may be attributed by clay content and the relationship was significant (p = 0.05). Again, 50.4 and 65.6% variability in exchangeable K and Mg, respectively may be governed by clay content of the soils, while such relationship for Ca was non-significant. CEC may contribute 62.2, 92.3 and 83.9% variability for exchangeable K, Ca and Mg content in soils, respectively. The fertility status of most of the studied soils (except AEZ 10, 12, 13 and to some extent 11) appeared to be low to very low, which demand judicious management in order to achieve food security and to conserve the soil fertility.Bangladesh J. Agril. Res. 41(4): 735-757, December 2016

scholarly journals Effect of biofarming techniques on medicinal glori lily (Gloriosa superba L.) and soil fertility status

2015 ◽  
Vol 9 (32) ◽  
pp. 863-866
Author(s):  
Deivasigamani S ◽  
K Thanunathan ◽  
M Kathiresan R ◽  
Sudhakar M ◽  
Bharathi Karthikeyan B
Keyword(s):  
Soil Fertility ◽  
Gloriosa Superba ◽  
Fertility Status ◽  
Soil Fertility Status

scholarly journals Soil fertility status of seasonally closed wetland ecosystem (ondombe) in north-central Namibia

2017 ◽  
Vol 12 (18) ◽  
pp. 1538-1546 ◽  
Author(s):  
Watanabe Yoshinori ◽  
Itanna Fisseha ◽  
Fujioka Yuichiro ◽  
Ruben Shou ◽  
Iijima Morio
Keyword(s):  
Soil Fertility ◽  
Wetland Ecosystem ◽  
North Central ◽  
Fertility Status ◽  
Soil Fertility Status
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