The impact of lime and organic fertilization on the growth of wild-simulated American ginseng

2003 ◽  
Vol 83 (3) ◽  
pp. 603-609 ◽  
Author(s):  
I. Nadeau ◽  
R. R. Simard ◽  
A. Olivier
Keyword(s):  
Survival Rate ◽  
Cultural Practices ◽  
Positive Impact ◽  
Growth Parameters ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
American Ginseng ◽  
Root Mass ◽  
Red Maple ◽  
The Impact

A 5-yr experiment was undertaken in a red maple forest to evaluate the effects of lime and organic fertilizer application on the growth parameters of wild-simulated American ginseng growing on a very acidi c soil. The application of lime had a positive impact on ginseng emergence and survival rate; it also significantly increased soil Ca, as compared to no application (control). During the last years of the experiment, adding lime also increased leaf area, a s well as shoot and root mass of ginseng. Adding lime and organic fertilizer together positively affected ginseng survival rate and root mass, as compared to adding lime alone. These results indicate that liming can improve the growth and survival of Amer ican ginseng during the first 5 yr of its development in this very acidic maple forest soil. The improvement could be due, at least partly, to increased Ca content in the soil. Addition of organic fertilizer would be beneficial as long as sufficient Ca2+is provided to alleviate the Al toxicity of this soil. Thus, using such cultural practices, wild-cultivation of American ginseng, even in red maple forests, could constitute a valuable alternative to field-cultivation. Key words:

Impact of Long-Term Organic Fertilizer Application on Lignin in Mollisol

2010 ◽  
Vol 113-116 ◽  
pp. 1332-1335 ◽  
Author(s):  
Ning Liu ◽  
Hong Bo He ◽  
Hong Tu Xie ◽  
Zhen Bai ◽  
Xu Dong Zhang
Keyword(s):  
Organic Carbon ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Carbon Pools ◽  
Organic Fertilization ◽  
Degradation Degree ◽  
Northeast Of China ◽  
The Impact ◽  
Cuo Oxidation

Fertilization is one of the essential managements to maintain and increase soil organic carbon (SOC) level in agroecosystems. It has been realized that fertilizer applications influenced the turnover of labile and refractory organic carbon pools in arable soil markedly. However, the dynamic of relatively refractory lignin in response to fertilization is still kept unclear. Therefore, the impact of long-term organic fertilization on the content and degradation degree of lignin in Mollisol was investigated. Lignin monomers were released by alkaline CuO oxidation method and quantified by gas chromatography (GC). At the time scale of decades, lignin was clearly accumulated in soil and the relative accumulation of lignin in SOC was evident after long-term organic fertilizer application. Compared with the unfertilized soil, lower acid to aldehyde ratios of vanillyl and syringyl units induced by organic fertilization suggested a lower degradation degree of lignin incorporated into soil to some extent. It could be concluded that long-term organic fertilization was an effective fertilizer practice for lignin accumulation in soil and SOC sequestration in Mollisol in northeast of China.

scholarly journals The Efficacy of the Mineralcorticoid Receptor Antagonist Canrenone in COVID-19 Patients

2020 ◽  
Vol 9 (9) ◽  
pp. 2943 ◽  
Author(s):  
Marco Vicenzi ◽  
Massimiliano Ruscica ◽  
Simona Iodice ◽  
Irene Rota ◽  
Angelo Ratti ◽  
...  
Keyword(s):  
Survival Rate ◽  
Receptor Antagonist ◽  
Positive Impact ◽  
Ventilatory Support ◽  
Continuous Administration ◽  
Pharmacological Management ◽  
Group A ◽  
Group B ◽  
The Impact ◽  
Free Rate

Background: In COVID-19 patients, aldosterone via angiotensin-converting enzyme-2 deregulation may be responsible for systemic and pulmonary vasoconstriction, inflammation, and oxidative organ damage. Aim: To verify retrospectively the impact of the mineralcorticoid receptor antagonist canrenone i.v. on the need of invasive ventilatory support and/or all-cause in-hospital mortality. Methods: Sixty-nine consecutive COVID-19 patients, hospitalized for moderate to severe respiratory failure at Fondazione Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico of Milan, received two different therapeutic approaches in usual care according to the personal skills and pharmacological management experience of the referral medical team. Group A (n = 39) were given vasodilator agents or renin–angiotensin–aldosterone system (RAAS) inhibitors and group B (n = 30) were given canrenone i.v. Results: Among the 69 consecutive COVID-19 patients, those not receiving canrenone i.v. (group A) had an event-free rate of 51% and a survival rate of 64%. Group B (given a mean dose of 200 mg/q.d. of canrenone for at least two days of continuous administration) showed an event-free rate of 80% with a survival rate of 87%. Kaplan–Meier analysis for composite outcomes and mortality showed log rank statistics of 0.0004 and 0.0052, respectively. Conclusions: The novelty of our observation relies on the independent positive impact of canrenone on the all-cause mortality and clinical improvement of COVID-19 patients ranging from moderate to severe diseases.

Soil conditions and yield of repeatedly grown apple orchard depending on long-term fertilizer application

2021 ◽  
Vol 1 (98) ◽  
pp. 34-47
Author(s):  
P. H. Kopytko ◽  
◽  
R. V. Yakovenko
Keyword(s):  
Soil Fertility ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Soil Conditions ◽  
Apple Trees ◽  
The Impact

The issue of scientifically sound fertilizer application in fruit plantations, which are long-term and re-grown in one place remains insufficiently studied. To solve this problem is possible only in long-term stationary studies, as the impact of different fertilizer systems on changes in soil properties and tree productivity for a long period of their use. The results of researches of long-term fertilizer influence on the main fertility indices of dark gray podzolic heavy loam soil and productivity of repeatedly grown apple trees of Idared varieties on seed and vegetative (M4) rootstocks and Calville snow on seedling rootstock are considered. During the 85-year period of growing the first and second generation of apple trees in the experimental garden, the organic fertilizer (40 t/ha of cattle manure), mineral fertilizer (N120P120K120) and their combination (20 t/ha of manure + N60P60K60) were applied in the old plantation every two years in autumn in plowing in rows at 18–20 cm, and in the new repetition: manure, phosphorus and potassium fertilizers as well, and nitrogen fertilizer in half doses annually in spring for cultivation or disk plowing to a depth of 12–15 cm. As a result of research it was found that organic fertilizer better than mineral fertilizers provided the formation of soil fertility (humus and mobile compounds and forms of nutrients, soil reaction) and yield capacity of experimental apple trees, which for all years of fruiting exceeded the total yield of Calville snow and Idared on seedling and vegetative rootstocks, respectively, by 34.8, 27.7 and 23.4 % compared with the yield of the control non-fertilized areas and 16.0, 15.8 and 13.2 % – on those fertilized with N120Р120К120. Similar parameters of soil fertility indicators are formed by the organo-mineral fertilizer system with systematic long-term application of half the norms of organic and mineral fertilizers of manure 20 t/ha together with N60P60K60. However, the mineral system (N120P120K120) significantly less increases the humus content and content of macronutrients available for plant nutrition and does not enrich the soil with trace elements, acidifies the reaction of the soil environment

scholarly journals Social network, environmental cognition and organic fertilizer application behavior of small farmers

2021 ◽  
Vol 293 ◽  
pp. 03016
Author(s):  
Li Peng ◽  
Qingxian Yang
Keyword(s):  
Social Network ◽  
Positive Impact ◽  
Organic Fertilizer ◽  
Farmyard Manure ◽  
Probit Model ◽  
Fertilizer Application ◽  
Small Farmers ◽  
Application Behavior ◽  
Complementary Effect ◽  
Environmental Cognition

Small farmers are the main organizational form of agricultural production and management in China, and it is very important to study their organic fertilizer application behavior to promote the development of green agriculture in China. Based on the survey data of 334 small farmers in Sichuan Province, this paper uses bivariate Probit model to analyze the influence of social network and environmental cognition on organic fertilizer application behavior. The research shows that:(1) The application of commercial organic fertilizer and farmyard manure by small farmers has a significant complementary effect.(2) Social network has a significant positive impact on organic fertilizer application behavior, and there are significant differences between kinship social network and friendship social network on organic fertilizer application behavior.(3) The level of environmental cognition has a significant positive effect on the application behavior of organic fertilizer. Therefore, it is necessary not only to make full use of and expand the social network of small farmers, but also to pay attention to improving their environmental awareness and promoting organic fertilizer application behavior.

scholarly journals In situ earthworm breeding in orchards significantly improves the growth, quality and yield of papaya (Carica papaya L.)

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2752 ◽  
Author(s):  
Huimin Xiang ◽  
Jia-en Zhang ◽  
Lei Guo ◽  
Benliang Zhao
Keyword(s):  
Carica Papaya ◽  
Growth Parameters ◽  
Organic Fertilizer ◽  
Total Yield ◽  
Growth Period ◽  
Fertilizer Application ◽  
Chemical Fertilizer ◽  
Total Acid ◽  
Growth Quality

The aim of this study was to compare the effects of four fertilizer applications—control (C), chemical fertilizer (F), compost (O), and in situ earthworm breeding (E)—on the growth, quality and yield of papaya (Carica papaya L.). In this study, 5 g plant−1 urea (CH4N2O, %N = 46.3%) and 100 g plant−1 microelement fertilizer was applied to each treatment. The fertilizer applications of these four treatments are different from each other. The results showed that the E treatment had the highest growth parameters over the whole growth period. At 127 days after transplantation, the plant heights were ordered E > F > O > C, and the stem diameters were E > F > O > C, with significant differences between all treatments. Soluble-solid, sugar, vitamin C, and protein content significantly increased in the E treatment. In addition, the total acid and the electrical conductivity of the fruit significantly decreased in the E treatment. Fruit firmness clearly increased in the O treatment, and decreased in the F treatment. The fresh individual fruit weights, fruit numbers, and total yields were greatly improved in the F and E treatments, and the total yield of the E treatment was higher than that in the F treatment. In conclusion, the in situ earthworm breeding treatment performed better than conventional compost and chemical fertilizer treatments. Furthermore, in situ earthworm breeding may be a potential organic fertilizer application in orchards because it not only improves the fruit quality and yield but also reduces the amount of organic wastes from agriculture as a result of the activities of earthworms.

scholarly journals PRINOS SOJE U ZAVISNOSTI OD VREMENA PRIMENE NPK ĐUBRIVA

2021 ◽  
Author(s):  
Vojin Đukic ◽  
◽  
Jegor Miladinovic ◽  
Zlatica Miladinov Mamlic ◽  
Gordana Dozet ◽  
...  
Keyword(s):  
Nitrogen Fertilizer ◽  
Cultural Practices ◽  
Weather Conditions ◽  
Fertilizer Application ◽  
Npk Fertilizers ◽  
Soybean Yield ◽  
Spring Period ◽  
Full Effect ◽  
Npk Fertilizer ◽  
The Impact

Soybean yield depends on the variety, soil, cultural practices, as well as the weather conditions in certain years. The aim of this research is to examine the impact of NPK fertilizer application in the autumn and spring period on the level of soybean yield. The highest soybean yields were achieved by applying NPK fertilizer in autumn, before the basic tillage with spring application of nitrogen fertilizer AN. Spring application of NPK fertilizers and AN increases the yield, but the effect of fertilizers is significantly less compared to autumn application. The application of nitrogen fertilizer AN increases the soybean yield, and in order for this fertilizer to show its full effect, it is necessary for the soil to be optimally provided with macroelements.

scholarly journals Improving the Empowerment of Breeders with Base of Local Problem Potency through Student Service Learning

2018 ◽  
Vol 4 (2) ◽  
pp. 109
Author(s):  
Anna Fatchiya ◽  
. Jakaria
Keyword(s):  
Service Learning ◽  
Fast Food ◽  
Positive Impact ◽  
Organic Fertilizer ◽  
Community Empowerment ◽  
School Age Children ◽  
Young Generation ◽  
Livestock Waste ◽  
Student Service ◽  
The Impact

Community empowerment activities of breeders by Bogor Agricultural University students in the form of Student Service Learning (CSP) in Lebak District is intended to improve their empowerment. In particular the purpose of CSP is to identify the potency and problems faced by breeders, to carry out community empowerment activities of breeders, and to analyze the impact of these activities. Activity methods include identification of potentials and problems, discussions, practices, and simulations. The results of this empowerment activity shows that the potential of livestock that can be developed in Lebak Regency is cattle, buffalo, goat, and chicken. But the obstacle is the knowledge of breeders on the management of livestock raising is still low, especially in the prevention of livestock disease, appropriate feeding, livestock waste management, and livestock processing. Implementation of community empowerment activities based on the results of identification process of potential and problems. Furthermore, it is done by using various methods, in the form of lectures, discussions and practices. The objective of the activity also focus to management as a whole and extends to the young generation and housewives, such as livestock education for school age children and livestock processing (nugget) for women. These activities have a positive impact on the community, such as improving the knowledge and skills of the community in managing their livestock business, such as arranging cages, feeding, processing of animal waste into organic fertilizer, processing of livestock products into fast food, and increasing knowledge and interest of young people in the field farming through counseling to school-aged children. The follow-up is to intensify this activity by the residents themselves and facilitated by extension workers and village officials, so that it adopted by many breeders.

scholarly journals Effect of Varying NPK 15-15-15 Fertilizer Application Rates on Growth and Yield of Cucumis melo L. (Muskmelon)

2021 ◽  
pp. 20-27
Author(s):  
Matthew Aluko
Keyword(s):  
Cucumis Melo ◽  
Cultural Practices ◽  
Growth Parameters ◽  
Block Design ◽  
Fertilizer Application ◽  
Fruit Yield ◽  
Growth And Yield ◽  
Design Data ◽  
Cucumis Melo L ◽  
Fertilizer Rates

Muskmelon (Cucumis melo L.) is cultivated for the nutritional and medicinal values. Information on nutrient requirements which is important components of improved cultural practices for production. A field experiment was conducted at the Teaching and Research Farm of Ekiti State University, Ado-Ekiti, Nigeria in the rainy seasons of 2017 and 2018. This study aims to evaluate the growth and yield responses of muskmelon to varying rates of NPK 15-15-15 fertilizer rates (0, 167, 333 and 500 kg ha-1) in a randomized complete block design. Data were collected on growth parameters, number and weight of fruits. The data were subjected to analysis of variance and treatment means separated with Duncan's multiple range test. NPK fertilizer rates increased vegetative growth and fruit yield linearly. Muskmelon's response to varying rates of NPK 15-15-15 followed the same trend in the two seasons, and fertilizer application reduced day to flowering significantly. The 500 kg ha-1 NPK 15-15-15 fertilizer produced a significantly higher number of fruits ha-1, but 333 kg ha-1 NPK 15-15-15 fertilizer produced higher quality fruits culminating in higher fruit yield (17.3 t ha-1) and therefore recommended.

scholarly journals Seed emergence and growth of the short age sugar palm (Arenga pinnata) as a response of seed scarification and liquid organic fertilizer application

2018 ◽  
Vol 2 (01) ◽  
pp. 8-13
Author(s):  
YETTI ELIDAR
Keyword(s):  
Seed Germination ◽  
Growth Parameters ◽  
Germination Rate ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Germination Percentage ◽  
Fertilizer Treatment ◽  
Randomized Design ◽  
Seed Scarification ◽  
Completely Randomized Design

Elidar Y. 2018. Seed emergence and growth of the short age sugar palm (Arenga pinnata) as a response of seed scarification and liquid organic fertilizer application. Asian J Agric 2: 8-13. The research was aimed to know the effect of seed scarification and liquid organic fertilizer application to the seed emergence and growth of the short age sugar palm (Arenga pinnata (Wurmb.) Merr). The research was conducted at two experiments, i.e. (i) effect of seed scarification, and (ii) effect of liquid organic fertilizer application. The first experiment was a single factor designed at Completely Randomized Design (CRD). The factor consisted of 4 scarification technique treatments i.e. s1 = seed abaxial scarification; s1 = seed tip scarification; s3 = seed left and right sides scarification; s4= seed embryo scarification. All treatments were replicated 6 times. The second experiment was arranged at a factorial (3 x 3) using Completely Randomized Design (CRD) with 6 replications. The first factor was the dose/volume of liquid organic fertilizer treatment in concentration of 3 cc L-1 of water (D) consisting of 3 levels i.e. d1 = 300 mL; d2 = 400 mL; d3 = 500 mL, while the second treatment was the interval of liquid organic fertilizer (I) application consisting of 3 levels i.e. i1 = 2 weeks; i2 = 3 weeks; i3 = 4 weeks. Seedling emergence test, germination rate, vigor index and seed germination percentage were measured and the growth parameters such as the plant height increase, plant midrib girth, number of midrib increase, and number of leaves were observed. The results showed that scarification at the embryo part (s4) resulted in the best seed germination percentage of the short age sugar palm at around 99.81%. Combination treatments between 500 mL dose of liquid organic fertilizer in concentration of 3 cc L-1 of water with the interval of 2 weeks (d3i1) produced the best seedling growth of the short age sugar palm.

scholarly journals Ecological and Edaphic Drivers of Yam Production in West Africa

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Dora Neina
Keyword(s):  
West Africa ◽  
Soil Fertility ◽  
Cultural Practices ◽  
Organic Fertilizer ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Future Research ◽  
Terra Preta ◽  
Production Areas ◽  
Nutrient Extraction

Yam is an important food and cash crop in West Africa (the yam belt) whose production is traditionally nonsedentary due to its substantial nutrient demand. Population growth, urbanization, and existing soil degradation have made nonsedentary farming virtually impossible. Despite the numerous research invested in yam production within and outside the yam belt, some gaps remain to be filled owing to changing climate events and global developments. Alarmingly, the yam belt is facing sharp yield declines despite increasing production areas. The key edaphic and ecological drivers of yam production in the global yam belt were reviewed. The implications for yam production were discussed along with prospects for future research, sustainable production, and soil management. The main findings are that (1) agroecological zone, postplanting cultural practices, and climate change and variability ecological drivers, while (2) tillage, soil type, texture, and fertility were the edaphic factors. The most critical among the drivers, principally, soil fertility, entails the biological and chemical through which nutrients are released lude, and physical soil fertility which enhances low bulk density, porosity, and water retention for free yam tuber expansion. Soil fertility was the most cited driver, which explains why yam is often the first crop in the cropland cultivation cycle in the yam belt. Data show that yam yields decline with time under native fertility and mineral fertilizer application due to the voracious nutrient extraction by tubers. Conversely, yields increase chronologically under organic fertilizer application due to the additive effects of the latter on soil properties. Thus, a yam fertilizer program to develop specific yam fertilizer formulations and the adoption of the Terra Preta Model are proposed to sustain future yam production.

Sign in / Sign up

Export Citation Format

Share Document