scholarly journals Evaluation of soil nutrient management practices of taro farmers in Taveuni, Fiji

2014 ◽  
Vol 32 (2) ◽  
pp. 61 ◽  
Author(s):  
Sofina Nisha ◽  
Surendra Prasad ◽  
Jagdish Bhati
Keyword(s):  
Soil Fertility ◽  
Management Practices ◽  
Nutrient Management ◽  
Low Cost ◽  
Soil Health ◽  
Soil Nutrient ◽  
Soil Fertility Management ◽  
Chemical Fertilizers ◽  
Fertility Status ◽  
Different Types

There is evidence that the soil health in Taveuni, Fiji is deteriorating over time threatening livelihoods of taro producers. The present study was conducted to understand the soil nutrient management practices followed by taro farmers in Taveuni. The study revealed that the farmers in Taveuni use various organic and chemical fertilizers and various other soil fertility management practices such as mulching, crop rotation with legumes, yagona and agroforestry. The quantity of nitrogen, phosphorous and potash (NPK) applied to taro crop on different types of soils was meager. The study further revealed that there was imbalanced and insufficient use of chemical fertilizers and organic sources of soil nutrients. The main cause of low use of fertilizers was that the farmers in Taveuni do not know the fertility status of their farms as no soil testing was ever done and majority of them are also not fully aware of various low-cost organic methods of maintaining soil fertility of farms.

scholarly journals Soil Fertility Management for Better Crop Production

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1349
Author(s):  
John Havlin ◽  
Ron Heiniger
Keyword(s):  
Soil Fertility ◽  
Crop Production ◽  
Management Practices ◽  
Nutrient Management ◽  
Root Zone ◽  
Nutrient Use Efficiency ◽  
Soil Nutrient ◽  
Crop Productivity ◽  
Soil Fertility Management ◽  
Fertility Management

Increasing crop productivity per unit of land area to meet future food and fiber demand increases both soil nutrient removal and the importance of replenishing soil fertility through efficient nutrient management practices. Significant progress in enhancing nutrient-use efficiency in production agriculture requires improved estimates of plant-available nutrients in the root zone, enhanced crop response to applied nutrients, and reduced offsite nutrient transport. This special issue, Soil Fertility Management for Better Crop Production, presents 15 manuscripts that advance our knowledge of interrelated soil, plant, and management factors important to increasing the nutrient availability and crop recovery of applied nutrients.

scholarly journals Soil Nutrient Dynamics under Old and Young Cocoa, Coffee and Cashew Plantations at Uhonmora, Edo State, Nigeria

2015 ◽  
Vol 19 (2) ◽  
pp. 75 ◽  
Author(s):  
Rotimi Rufus Ipinmoroti ◽  
Joseph Sunday Ogeh
Keyword(s):  
Soil Fertility ◽  
Cover Crops ◽  
Nutrient Dynamics ◽  
Management Practices ◽  
Soil Nutrient ◽  
Soil Fertility Management ◽  
Total N ◽  
Nutrient Contents ◽  
Fertility Management ◽  
Edo State

A  study  was  conducted  to  assess  nutrient  dynamics  of  soils  under  old  and  young  cocoa,  coffee  and  cashew plantations and the leaf nutrient contents of the crops at Uhonmora, Edo State, Nigeria for proper cultural and soil fertility management of the plantations. Soil and crop leaf samples were collected from each plantation using a random sampling technique. The samples were analyzed using standard procedures for sand, silt, clay, pH (H2O), electrical conductivity (EC), total N, available P, K, Ca, Mg, Na, and Effective Cation Exchange Capacity (ECEC). Leaf samples were analyzed for N, P, K, Ca, Mg and Na. Data were compared with the corresponding soil and foliar critical nutrient values for each crop. Results indicated that the soils were texturally sandy clay loam and acidic. The soils varied in their nutrient contents, with soil P for the old cocoa, young coffee and cashew plantations far below critical values. The young cashew plot was low in N content but adequate for other plots. However, the soil ECEC increased with the increasing of calcium contents. Leaf N was below critical for all the crops. Leaf K was low for cocoa and coffee plants, leaf Ca was low for the young cashew plants, while leaf Mg was low for the young cocoa and old cashew. The high soil Mg/K ratio of 8.7- 22.3 as against the established value of 2.0 might have resulted in gross nutrient imbalance which must have affected the absorption and utilization of other nutrients. Hence, adequate soil N did not translate the same availability to the crops. The ECEC showed that the soil needs to be improved upon for sustainable  productivity.  Soil  nutrient  content  variation  across  the  plantations  with  age  of  establishment  will necessitate the need for consistent routine soil nutrient assessment for proper and balanced soil nutrient supply to the  crops,  for  healthy  crop  growth  and  optimum  yield.    Management  practices  of  soil  surface  mulching  using organic wastes and cover crops under compatible cropping systems are needed for successful plot establishment and better growth performance of the young seedlings.Key words: Nutrient dynamics, plantation crops, rehabilitation, soil fertility management [How to Cite: Rotimi RI and JS Ogeh. 2014. Soil Nutrient Dynamics under Old and Young Cocoa, Coffee and Cashew Plantations at Uhonmora, Edo State, Nigeria. J Trop Soils 19(2): 85-90. Doi: 10.5400/jts.2014.19.2.85] [Permalink/DOI: www.dx.doi.org/10.5400/jts.2014.19.2.85]     

scholarly journals Soil Fertility Management Based on Certified Organic Agriculture Standards – a Review

2020 ◽  
Vol 9 (2) ◽  
pp. 1
Author(s):  
I. P. Sapinas ◽  
L. K. Abbott
Keyword(s):  
Organic Matter ◽  
Management Practices ◽  
Nutrient Management ◽  
Soil Nutrient ◽  
Soil Improvement ◽  
Soil Fertility Management ◽  
Fertility Management ◽  
Organic Systems ◽  
Certified Organic ◽  
Organic Standards

In certified organic agricultural systems, soil nutrient status relies primarily on incorporation of organic matter and other specific inputs to meet requirements for phosphorus and micronutrients. Nutrient management strategies based on defined standards seek to maintain sufficient nutrient availability while minimizing potential losses. Although organic systems may result in lower levels of production than conventionally managed systems, sound soil nutrient management practices can minimize this gap. Certified organic standards are widely established globally, but traditional farming practices that resemble organic systems are also commonly used without adherence to a certified scheme. There is considerable debate about the efficiency of bio-amendments for use in organic farming due to their variability. Questions also persist about the sustainability of organic soil fertility management practices. The relevance of global variations among organic certification standards has not been a major consideration in research. Most soil improvement strategies focus on assessing the impact of particular amendments with less attention to a more holistic approach which integrates all components of the agricultural system. Research on implementation of practices based on certified organic standards highlights potential for multi–disciplinary, in-depth studies that identify combined impacts of organic management practices at a local scale. Standards developed at national level may not fully account for the breadth of soil types and environmental conditions. While soil improvement based on certified organic standards can contribute to socio-economic development and ecosystem services, local soil characteristics need to be considered in parallel with potential new avenues for sourcing nutrients, including organic matter management.

scholarly journals Enzyme Activity and Rhizosphere Microflora under Sugarcane Monocropping as Influenced by Integrated Nutrient Management

2019 ◽  
Vol 7 (3) ◽  
pp. 343-349
Author(s):  
Ch. S. Rama Lakshmi ◽  
T. Sreelatha ◽  
A. Sireesha ◽  
P. Jamuna ◽  
M. Bharatha Lakshmi
Keyword(s):  
Management Practices ◽  
Field Experiments ◽  
Nutrient Management ◽  
Microbial Population ◽  
Low Cost ◽  
Growth Stages ◽  
Soil Biology ◽  
Chemical Fertilizers ◽  
Rhizosphere Microflora ◽  
Population Counts

Sugarcane is one of the lead crops in North Coastal Andhra Pradesh. Farmers in North Coastal Zone are opting for raising more number of ratoons owing to its substantially low cost of production. Ratoon crops however seldom receive proper care and inputs due to considered it as a bonus crop by majority of farmers. Field experiments were conducted consecutively for six years in the same field (2012-13 to 2018-19) at RARS, Anakapalle to study the monocropping effect on soil biology under the influence of different nutrient management practices. Irrespective of the year of ratooning, plots which received 50% recommended dose of chemical fertilizers + 25% nitrogen though vermicompost + 25% nitrogen through green manure incorporation resulted in higher microbial population over chemical fertilizers alone. Activity of dehydrogenase and active carbon pool also showed similar trend in multi-ratooning system of sugarcane. Rhizosphere microbial population at different growth stages revealed that, azospirillum population was observed highest followed by azotobacter while lowest population counts of phosphorus solubilizing bacteria were observed. Highest population counts were recorded in INM plots and population was highest at formative later reduced to harvest. INM with 50% RDFN + 50% through organics (66.80 t ha-1) recorded at par yields with 100% RDF (67.28 t ha-1).

Assessment of soil fertility management practices of wheat in western terai of Nepal

2018 ◽  
pp. 105-114
Author(s):  
N. Rawal ◽  
N. Bhandari ◽  
S. Subedi ◽  
D. R. Chalise ◽  
D. Khadka
Keyword(s):  
Soil Fertility ◽  
Management Practices ◽  
Soil Nutrient ◽  
Simple Random Sampling ◽  
Structured Interview ◽  
Wheat Crop ◽  
Soil Fertility Management ◽  
Animal Science ◽  
Fertility Management ◽  
Time Availability

A study was conducted to assess the soil fertility management practices and their constraints in sixty households of western terai of Nepal namely Barrohiya (Kapilvastu), Rehara (Rupandehi) and Sanda (Nawalparasi) in 2013 by using simple random sampling techniques. A semi-structured interview schedule was used for the collection of the data. Eighty percent of the interviewed farmers had medium land holding size (7.5 to 82 Katha). Most of the land was irrigated (>81 percent) and medium upland type (53.48 percent). Farmers in those areas weren’t practicing green manuring but were habituated to incorporate legumes (pea, lentil, black gram, beans, etc.). Chemical fertilizer was the main source of nutrient (56 percent) for wheat crop. Urea and DAP were commonly used by farmers whereas MoP was rarely used. Farmers of Kapilvastu applied the highest amount of Urea (165 Kg/ha) where as the amount of DAP (116.9 kg/ha) and MoP (27.8 Kg/ha) used was more in Nawalparasi than other two in wheat crop. On an average the farmers applied 13.3 kg/ha MoP which is very low as compared to recommended dose (41.7 kg/ha). There were number of constraints and obstacles perceived by the farmers. Arrangement must be made on those areas for time availability of fertilizers and farmers must be made aware about adequate use of quality chemical fertilizers and proper soil nutrient management.Journal of the Institute of Agriculture and Animal Science. Vol. 33-34, 2015, page: 105-114

scholarly journals Effects of Management Practices on Soil Nutrient Levels in Sabke Catchment Area, Nigeria

2016 ◽  
Vol 47 (2) ◽  
pp. 180
Author(s):  
S.A Mashi ◽  
A. Yaro
Keyword(s):  
Soil Fertility ◽  
Crop Production ◽  
Management Practices ◽  
Crop Residues ◽  
Soil Nutrient ◽  
Chemical Fertilizer ◽  
High Rate ◽  
Soil Fertility Management ◽  
Fertility Management ◽  
Residue Retention

In Nigeria’s drylands, profitable crop production requires adequate soil fertility management. This study examines the effects of farmer-managed practices on soil fertility in Sabke catchment of the drylands. Seven sites under permanent cropland, fallow land, grassland, shrubland, orchard land, intercropping land and woodland distributed on four transects were selected across the catchment. At every site, five replicate soil samples were collected from 0-15cm (topsoil) and 20-30cm (subsoil) and analysed for C, N, P, Ca, Mg, K and Na. Higher topsoil values of most of the properties were observed under cropland and intercropping sites. The two cultivated plots receive annual applications of organic manure in addition to chemical fertilizer and crops residue retention while the other plots are not. Thus, improvement in soil organic matter and nutrients would be expected in soils of the area with high rate of application of manure and chemical fertilizer, and retention of crop residues

Assessment of soil quality under maize-wheat cropping system of Milak block, district Rampur, Uttar Pradesh

2018 ◽  
Vol 3 (01) ◽  
pp. 76-80
Author(s):  
Ravindra Kumar ◽  
Manoj Singh ◽  
A. K. Mishra ◽  
Reshu Singh ◽  
N. C. Tripathi
Keyword(s):  
Soil Fertility ◽  
Crop Production ◽  
Management Practices ◽  
Soil Health ◽  
Organic Matter Content ◽  
Cropping System ◽  
Soil Nutrient ◽  
Matter Content ◽  
Soil Samples ◽  
Available Nitrogen

Soil is one of the most important vital natural resource, defends the life supporting system of a country and socio-economic development of its people. More than ever before, a renewed attention is being given to soil due to rapid declining land area for agriculture, declining soil fertility and increasing soil degradation, wrong land policies and imbalance use of inputs (Kanwar, 2004). All the above factors call for a paradigm shift in research away from maximum crop production to the sustainability of crop production system without degradation of soil health and environmental quality. Soils differ greatly in their morphological, physical, chemical and biological characteristics. Since these characteristics affect the response of soil to management practices it is necessary to have information about these characteristics of each category of soil. Soil fertility is one of the important factors controlling yields of the crops. Within a soil, nutrient variability exists depending upon the hydrological properties of the soil and cropping system. In the present study 366 soil samples were collected from 21 gram panchayats and were analyzed. The soil samples were collected from rice-wheat cropping sequence. Analysis of soil samples revealed that 82 per cent samples were medium in organic matter content, 100 per cent soil samples were deficient in available nitrogen, while 92 per cent P and 100 per cent K samples were in medium range respectively. Among the micronutrients tested copper and iron were in sufficient range while manganese and zinc were deficient in soil.

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