scholarly journals Effect of Different Levels of Nitrogen and Zeolite on Soil Properties and Soil Fertility for Rice Cultivation

2020 ◽  
pp. 1-9
Author(s):  
V. B. Pandit ◽  
K. Jeevan Rao ◽  
M. Rajeshwar Naik ◽  
G. E. Ch. Vidya Sagar
Keyword(s):  
Soil Properties ◽  
Phosphorus Content ◽  
Soil Bulk Density ◽  
Exchange Capacity ◽  
Available Phosphorus ◽  
Greenhouse Condition ◽  
Available Nitrogen ◽  
Fertility Status ◽  
Water Holding ◽  
Different Levels

The pot culture experiment was conducted to investigate effect of different levels of nitrogen and zeolite on soil properties in rice under greenhouse condition during kharif 2018-19. The investigation showed that soil bulk density was decrease from 1.5 to 1.02, 1.24 and 1.29 g cc-1 by the zeolite application at 9, 6, and 3 t ha-1 respectively. Water holding capacity of soil was increased from 43.53 to 55.49% with different levels of zeolites. Cation exchange capacity of soil significantly increased by 50.45, 44.54 and 29.22% with the application of zeolite at 9, 6 and 3 t ha-1, respectively. Highest value of soil pH and EC were 7.6 and 1.27 dS m -1observed in 9 t ha -1 zeolite treatment. Fertility status of soil i.e. available nitrogen and available phosphorus content also improved by the application of zeolite at different rates.

scholarly journals Effect of Levels of Coconut Shell Biochar and Farm Yard Manure on Soil Properties under Upland Rice Cultivation

2020 ◽  
pp. 18-35
Author(s):  
B. R. Arunkumar ◽  
G. N. Thippeshappa ◽  
Basavarajappa H. Bhogi
Keyword(s):  
Soil Properties ◽  
Upland Rice ◽  
Block Design ◽  
Field Capacity ◽  
Soil Bulk Density ◽  
Exchange Capacity ◽  
Recommended Dose ◽  
Farm Yard Manure ◽  
Available Nitrogen ◽  
Four Levels

An field experiment were conducted at ZAHRS, UAHS, Shivamogga, during summer 2018 to know the effect of biochar and Farm Yard Manure (FYM) on soil properties. The experiment was planned in Randomized Complete Block Design (RCBD) with 16 treatments consisting of four levels of biochar at 2, 4, 6 and 8 t ha-1 and two levels of FYM at 5 and 10 t ha-1 which were applied alone and in combinations. The recommended dose of fertilizer was applied commonly to all the treatments with three replications. The result revealed that combined application of 8 t ha-1 biochar + 10 t ha-1 FYM with Recommended Dose of Fertilizer (RDF) (100:50:50 kg ha-1) to soil significantly decreased the soil Bulk density (1.30%) and Permanent wilting point (2.13%) and increased the soil porosity (50.94%), Maximum water holding capacity (37.30%), Field capacity (19.71%) and water stable aggregates (67.40%) as compared to initial soil properties of experimental site. Significantly increased the soil pH (initial acidic (5.88) to neutral at harvest (7.05)), Electrical Conductivity (EC) (0.37 dS m-1), Cation Exchange Capacity (CEC) (17.86 [cmol (p+ kg-1)]), available Nitrogen (340.24 kg ha-1), Phosphorus (79.54 kg ha-1), Potassium (252.46 kg ha-1) and Sulfur (13.55 mg kg-1). Soil Diethylene triamine penta acetic acid (DTPA) extractable micronutrients, soil enzymes and microbial biomass compared to absolute control and RDF alone treatments.

scholarly journals Adsorption of Copper in Soil and its Dependence on Physical and Chemical Properties

2018 ◽  
Vol 66 (1) ◽  
pp. 219-224 ◽  
Author(s):  
Vítězslav Vlček ◽  
Miroslav Pohanka
Keyword(s):  
Soil Properties ◽  
Solid Phase ◽  
Chemical Properties ◽  
Total Content ◽  
Exchange Capacity ◽  
Soil Reaction ◽  
Available Phosphorus ◽  
Copper Adsorption ◽  
Phosphorus And Potassium ◽  
Physical And Chemical

Soil samples (n = 11) were collected in the chernozem areas of the Czech Republic (the Central Europe) from the topsoil and used as representative samples. All sampling areas have been used for agricultural purposes (arable soil) and they were selected as typical representatives of agricultural soil. These samples represented the soil with same genesis (to reduction differencies between soil types) but with different soil properties (physical and chemical). Complete chemical and physical analyses were made for confirmation of copper adsorption on solid phase: we analysed the particle size distribution, content of oxidizable carbon (Cox), the cation exchange capacity (CEC), supply of exchange calcium, magnesium, sodium, phosphorus and potassium, soil reaction and the total supply of Fe, Al, Mn, Ca, Mg, K, P and N. The strongest simple correlation between analysed soil properties and copper concentration had content of available magnesium (r = 0.44) and available phosphorus (r = −0.51). In the case of multiple correlations (i. e. collective influence of multiple soil properties) had the strongest influence combination of clay, soil reaction, total content of phosphorus, available magnesium and available phosphorus. The main influence of phosphorus and magnesium is evident. We suppose that copper and phosphorus enter into specific complex. Influence of these five soil properties can explain 92.7 % (r = 0.927) changes in the content of copper changes in the experiment.

scholarly journals Spatial variability of fertility status in soils of Dima Hasao district of Assam

2021 ◽  
Vol 23 (3) ◽  
pp. 368-374
Author(s):  
A. BASUMATARY ◽  
Keyword(s):  
Organic Carbon ◽  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Exchange Capacity ◽  
Organic Carbon Content ◽  
Critical Limit ◽  
Available Nitrogen ◽  
Cu Content ◽  
Fertility Status ◽  
High Organic Carbon Content

Two hundred fifty geo-referenced surfaces (0-15 cm) soil samples were collected and analysed for macronutrients and micronutrients to study fertility status in soils of Dima Hasao district of Assam and their relationship with some important soil properties. Soils of the district were found to be extremely acidic to slightly acidic in reaction with a low to high organic carbon content and low in cation exchange capacity. The soil of the district indicated that the available nitrogen, phosphorus and potassium status was observed to the tune of 14.0 %,7.2% and 67.2% under low and 86.0 %, 92.8 % and 32.8 %under medium categories, respectively. The overall percent deficient of exchangeable calcium, magnesium and available sulphur in soils was 25.6, 30.4 and 6.8 %, respectively. Based on critical limit, all soils were adequately supplied with DTPA-extractable Fe, Mn and Cu content. In respect of zinc and boron, soils exhibited 90.4 and 73 per cent under sufficient, while, 2.4 and 12 per cent were found deficient in DTPA -Zn and HWS-B, respectively. Soil pH and EC showed positive correlation with macro nutrients and negative correlation with micronutrients. The macro- and micronutrient showed significant positive relation with soil organic carbon and cation exchange capacity.

scholarly journals Available nutrients status in black soils of Varanasi district of eastern part of Uttar Pradesh

2018 ◽  
Vol 10 (4) ◽  
pp. 1238-1242
Author(s):  
Ashish Rai ◽  
Surendra Singh
Keyword(s):  
Uttar Pradesh ◽  
Mean Value ◽  
Soil Samples ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
High Status ◽  
Available Nitrogen ◽  
Available N ◽  
Mean Values ◽  
Fertility Status

Soil fertility status of the intensively vegetables growing in black soils of Varanasi (UP), India is not available. Therefore, present study was under-taken to assess the fertility status by collecting 100 surface (0-15 cm depth) soil samples using geographical positioning system (GPS). Soil samples were analysed following standard methods. The pH of the surface soils ranged from 7.3 to 8.4 with a mean of 7.9 indicating alkaline nature of soil. The EC of the soils were normal and ranged from 0.17 to 0.48 dS m-1 with mean value of 0.30 dS m-1. The organic carbon content of the soils ranged from 3 to 9 g kg-1 with a mean of 5.8 g kg-1. The range (mean) values of available N, P and K were 106 to 291 (184), 8 to 65 (27) and 145 to 358 (229) kg ha-1, respectively. The soils were found 99% low in available N content and nutrient index rating of available P was found high. The range (mean) values of B, Zn, Cu, Fe and Mn were, 0.11 to 0.53 (0.40), 0.38 to 3.04 (1.08), 0.22 to 1.96 (0.79), 2.9 to 16.40 (8.42) and 0.68 to 12.64 (3.24) mg kg-1 soil, respectively. The available sulphur of the soils ranged from 7 to 33 mg S kg-1 with mean of 15 mg S kg-1 soil. Soils were categorised in to low, medium and high status, subsequently 99 % soils were found low in available nitrogen whereas 63% soil samples were found medium in available phosphorus, and 88% were medium in available potash. 26, 48 and 26% soils were low, medium and high in S, respectively and the corresponding Figs. for B were 90, 10 and 0%. In case of cationic micronutrients, 7, 58 and 35% soils were low, medium and high in Zn and the corresponding Figs. for Available Mn were 30, 44 and 26%. Fe was found 6, 59 and 35% in low, medium and high category respectively. There was no copper deficiency found in black soils of Varanasi.

scholarly journals Nutrient uptake and soil fertility status after harvest of Bt cotton as influenced by graded levels of NPK fertilizers in Alfisol

2017 ◽  
Vol 9 (4) ◽  
pp. 2315-2326
Author(s):  
T. V. Jyothi ◽  
N. S. Hebsur
Keyword(s):  
Soil Fertility ◽  
Field Studies ◽  
Available Phosphorus ◽  
Growth Stages ◽  
Bt Cotton ◽  
Available Nitrogen ◽  
Npk Fertilizers ◽  
Fertility Status ◽  
Soil Fertility Status ◽  
Cu Uptake

Field studies were conducted at farmer’s fields in Jodalli (Kalghatgi taluk) and Pale (Hubballi taluk) villages in 2012-13 and 2013-14, respectively to investigate the effect of NPK fertilizers on uptake of nutrients by Bt cotton and soil fertility status at harvest in Alfisol. Among the different treatment combinations, the application of 150:50:75 kg N:P2O5:K2O ha-1 (N3P1K2) recorded significantly (P=0.05) higher nitrogen (132.63 kg ha-1), phosphorus (31.26 kg ha-1) and potassium (128.94 kg ha-1) uptake by cotton. The interaction effect with respect to total micronutrients (Zn, Fe, Mn and Cu) uptake remained non significant at all the growth stages. Graded levels of fertilizers failed to exert significant impact on pH and electrical conductivity, soil organic carbon and available micronutrients during both the years of experimentation. The application of 100:50:50 kgN:P2O5:K2O ha-1 (N1P1K1) recorded significantly (P=0.05) highest available nitrogen (150.39 kg ha-1), available phosphorus (37.98 kg ha-1) and available potassium (230.99 kg ha-1) compared to rest of the treatments. The lowest available nitrogen (134.92 kg ha-1), available phosphorus (31.65 kg ha-1) and available potassium (217.63 kg ha-1) were recorded in treatment receiving 150:50:75 kg N:P2O5:K2O ha-1 (N3P1K2).

scholarly journals Improving Soil Quality by Using Oil Palm Solid Waste Biochar

2021 ◽  
Vol 4 (1) ◽  
pp. 20-29
Author(s):  
Darmawan Darmawan ◽  
Sari Handani ◽  
Ikhsanul Adli
Keyword(s):  
Solid Waste ◽  
Soil Quality ◽  
Oil Palm ◽  
Pore Space ◽  
Mineral Soil ◽  
Soil Bulk Density ◽  
Exchange Capacity ◽  
Oil Palm Plantation ◽  
Mineral Soils ◽  
Water Holding

Solid waste and land degradation are two main problem faced by oil palm plantation in mineral soils. In order to get rid of these difficulties, a field experiment has conducted at re-planting stage of oil palm in PT. Tidar Kerinci Agung plantation. The objective of this study is to examine the potentiality of biochar made from empty bunch of oil palm on soil quality. Fifteen plots of 100 square meters were applied with the dose of 0.0, 2.5, 5.0, 7.5 and 10.0 Mg/ha biochar, respectively. The results show the treatment increase soil organic matter, total pore space, water holding capacity and cation exchange capacity. On the other hand, soil bulk density found decrease significantly along with the treatment. These results indicated that application of biochar might be a better choice for sustainable oil palm plantation in mineral soil.

scholarly journals Effects of Prosopis velutina Invasion on Soil Characteristics along the Riverine System of the Molopo River in North-West Province, South Africa

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Alvino Abraham Comole ◽  
Pieter Willem Malan ◽  
Makuété André Patrick Tiawoun
Keyword(s):  
South Africa ◽  
Soil Properties ◽  
Invasive Plant ◽  
Soil Characteristics ◽  
Exchange Capacity ◽  
Available Phosphorus ◽  
Prosopis Velutina ◽  
North West ◽  
North West Province ◽  
Almost All

Invasive alien plants are one of the major threats to ecosystems. Many invasive plant species, such as Prosopis species, have been introduced around the world and can alter the soil properties of invaded ecosystems. It is one of the most aggressive invasive plant invaders in the North-West Province of South Africa, but little information is available about their influence on soil properties. This study was conducted to investigate the effect of Prosopis velutina invasion on selected soil properties at five different sites along the riverine system of the Molopo River in North West Province. At each study site, soil characteristics were measured from soil samples taken under P. velutina canopies, between canopies and in the benchmark stands free of Prosopis species. The effect on selected soil properties of P. velutina invasion varied between the three stands and between sites. In all the sites, almost all soils collected from under the canopies had a significantly higher soil exchangeable Ca, K, Mg, and Na, organic matter (OM), total nitrogen (TN), available phosphorus (P), Electrical conductivity (EC), and cation exchange capacity (CEC) than the other sample positions, except for the pH which had the high value in intercanopies. Significantly higher ( p < 0.05 ) values of almost all soil properties were found on the densely invaded sites (Tshidilamolomo I and Tshidilamolomo II) compared to lightly invaded sites (Mabule, Black Heat Farm, and Bray). However, it was difficult to generalise as the effects often appear to be site-specific. In addition, the findings also indicated that soils textural classes ranged between sand, silt, and clay in all study sites with a higher proportion of sand in the benchmark than in the soil under the canopies and intercanopies. Soil characteristics differed significantly more between sites than among positions. The site effects observed in this current study provide evidences that this species may occupy a relatively broad soil niche.

scholarly journals Woodchip biochar with or without synthetic fertilizers affects soil properties and available phosphorus in two alkaline, chernozemic soils

2016 ◽  
Vol 96 (4) ◽  
pp. 472-484 ◽  
Author(s):  
J.A. Surani Chathurika ◽  
Darshani Kumaragamage ◽  
Francis Zvomuya ◽  
Olalekan O. Akinremi ◽  
Donald N. Flaten ◽  
...  
Keyword(s):  
Soil Properties ◽  
Soil Ph ◽  
Aggregate Stability ◽  
Exchange Capacity ◽  
Interactive Effects ◽  
Available Phosphorus ◽  
P Fractions ◽  
Olsen P ◽  
Synthetic Fertilizers ◽  
Biochar Amendment

Fertility enhancement with biochar application is well documented for tropical acidic soils; however, benefits of biochar coapplied with synthetic fertilizers (SFs) on soil fertility are not well documented, particularly for alkaline chernozems. We examined the short-term interactive effects of woodchip biochar amendment with fertilizers on selected soil properties, available phosphorus (P), and P fractions of two alkaline Chernozems from Manitoba. Treatments were (1) urea and monoammonium phosphate fertilizers, (2) biochar at 10 g kg−1, (3) biochar at 20 g kg−1, (4) biochar at 10 g kg−1with fertilizers, (5) biochar at 20 g kg−1with fertilizers, and (6) a control. Treated soils were analysed for pH, electrical conductivity (EC), and Olsen P concentration biweekly, and for P fractions, cation exchange capacity (CEC), organic carbon (OC), and wet aggregate stability after 70 d of incubation. Biochar amendment without fertilizers significantly increased soil pH and CEC but had no effect on EC, while coapplication with fertilizers significantly increased Olsen P and labile P concentrations. When coapplied with fertilizers, biochar did not significantly increase soil pH relative to the control. Results suggest that biochar improved soil properties and available P in alkaline Chernozems, and the beneficial effects were enhanced when coapplied with SFs.

scholarly journals Effects of Amendments on Physicochemical Properties and Respiration Rate of Soil from the Arid Region of Northwest China

2021 ◽  
Vol 13 (10) ◽  
pp. 5332
Author(s):  
Dianpeng Li ◽  
Jianqin Zhou ◽  
Yuxin Zhang ◽  
Tao Sun ◽  
Shuqing An ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Soil Temperature ◽  
Soil Depth ◽  
Northwest China ◽  
Exchange Capacity ◽  
Carbon Accumulation ◽  
Available Phosphorus ◽  
Available Nitrogen ◽  
Arid Agriculture ◽  
Anionic Polyacrylamide

In arid regions, decreased soil fertility has adversely affected agricultural sustainability. The effects of different amendments in alleviating these issues and increasing soil fertility remain unclear. Herein, a two-year field experiment was conducted to evaluate the properties of grey desert soil and soil respiration (SR) dynamics under six different treatment groups: biochar (BC), leonardite (LD), anionic polyacrylamide (PAM−), cationic polyacrylamide (PAM+) powder, anionic polyacrylamide solution in water (PAM−W), and control (CK). We observed that the BC and LD amendments significantly altered soil pH, organic matter, available nitrogen, available phosphorus, cation exchange capacity, and SR. PAM amendment increased the SR as compared to the control, except in autumn, but PAM did not affect the soil properties. SR under different amendments showed strong seasonal patterns, the highest and lowest SR rates were observed in June and January, respectively. Amendments and seasonal dynamics significantly affected SR, but no interaction was observed between these factors. Temporal variation of SR was substantially influenced by soil temperature at 15 cm of soil depth. Temperature sensitivity of SR (Q10) increased with soil depth and decreased with amendment addition. SR was significantly affected by soil temperature, moisture, air temperature, and their interactions. The outcomes of this study suggested that the BC and LD amendments improved soil fertility and negated the net carbon accumulation by increasing the SR and Q10 in arid agriculture soil.

scholarly journals Short-Term Abandonment versus Mowing in a Mediterranean-Temperate Meadow: Effects on Floristic Composition, Plant Functionality, and Soil Properties—A Case Study

Agriculture ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 78
Author(s):  
Francesca Vannucchi ◽  
Valerio Lazzeri ◽  
Irene Rosellini ◽  
Manuele Scatena ◽  
Claudia Caudai ◽  
...  
Keyword(s):  
Soil Properties ◽  
Plant Community ◽  
Floristic Composition ◽  
Buffer Zone ◽  
Exchange Capacity ◽  
Available Phosphorus ◽  
Short Term ◽  
Natural Protected Areas ◽  
Hay Meadows ◽  
Ecological Importance

Hay meadows are secondary grasslands maintained by mowing, and their ecological importance resides in the inherent biodiversity and carbon stocking. We investigated the plant community and soil properties of a sub humid acid grassland near the Fucecchio marshes (Italy), managed as a hay meadow, mowed once a year, and not fertilized. Part of the meadow had been abandoned for three years. We analysed the soil properties (i.e., organic carbon and total nitrogen content, available phosphorus, pH, cation-exchange capacity, texture, and conductibility) and the plant community structure (composition, functionality, and species richness) of the two sides of the meadow (mowed and abandoned). Our aim was to highlight the changes in soil properties and vegetation community, and to find out to what extent abandonment can affect those dynamics. Our results showed that after short-term abandonment, soil pH, C and N increased; litter biomass and perennial forbs increased; and annual forbs decreased. New species colonising after abandonment, thus enriching the flora, may keep spreading and eventually hinder the growth of the specialists if mowing is not resumed. Certain valuable meadow habitats need constant human intervention to maintain their peculiar vegetation, most especially if they are a buffer zone in the proximity of natural protected areas.

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