scholarly journals Effect of Phosphorus Solubilizing Bacteria on Soil Available Phosphorus and Growth and Yield of Sugarcane

Author(s):  
Pyone Pyone AYE ◽  
Pechrada PINJAI ◽  
Saowanuch TAWORNPRUEK

Phosphorus solubilizing bacteria (PSB) can increase soil phosphorus (P) availability and improve plant growth, yield, and phosphorus content of several crops. The experiment was conducted to evaluate the effect of PSB on soil available phosphorus, growth, and yield of sugarcane at field conditions. Kosakonia radicincitans (PSB1) and Bacillus subtilis (PSB2) were applied with two different sources of phosphorus fertilizers: Di-ammonium phosphate (DAP) and rock phosphate (RP). The application of PSB with phosphorus fertilizers enhanced the yield from 17.03 to 38.42 % over no application of fertilizer. It also increased the percentage of commercial cane sugar percent (CCS %) from 4.8 to 19.96 % over control. The application of PSB2 with DAP showed effective results in available phosphorus content in the soil and yield of sugarcane. The PSB population and the available phosphorus contents were higher in treatments when phosphorus was given partly through RP and DAP than the control. The application of phosphorus fertilizer and PSB increased phosphorus fractions in the soil. The addition of phosphorus fertilizer to soil increased all the inorganic phosphorus fractions in soil. The treatments with PSB resulted in statistical differences in total phosphorus concentrations in the soil. The application of PSB with RP (T6, T7, and T8) showed the highest weight among the treatment at the harvesting time. The yield of sugarcane was highest in the application of PSB2 with either DAP or RP (T4 and T7). HIGHLIGHTS Evaluate the effect of Phosphate Solubilizing Bacteria (PSB) (Kosakonia radicincitans and Bacillus subtills) comminated with two different phosphorus (di-ammonium phosphate (DAP) and rock phosphate (RP) fertilizers on the changes in the soil available phosphorus level and sugarcane growth at Sa Kaeo Province, Thailand The application of P fertilizer and PSB can increase the inorganic P fractions in the soil and increased the cane yield over NPK without PSB The PSB application either single or co-inoculation of PSBs increased the average cane more than 13 % to over control

1985 ◽  
Vol 25 (1) ◽  
pp. 198 ◽  
Author(s):  
MDA Bolland

The residual values of phosphorus from triple superphosphate and from three rock phosphates were compared in a 4-year field experiment with wheat, grown on a phosphorus deficient lateritic soil in south-western Australia. The three rock phosphate fertilizers were an apatitic rock phosphate originating from the Duchess deposit in north-western Queensland, and calcined (500�C) Christmas Island C-grade ore as a powder and as pellets. Five rates of each fertilizer were applied at the commencement of the experiment and their effectiveness was calculated from data on yield of dried plant tops, grain yield, and bicarbonate soluble phosphorus extracted from the soil. Triple superphosphate was the most effective phosphorus fertilizer initially, but its effectiveness decreased markedly with time. The effectiveness of the three rock phosphates was initially very low, and remained approximately constant for the duration of the experiment. The yield of dried plant tops depended upon their phosphorus content and this relationship was independent of the phosphorus fertilizer used.


1958 ◽  
Vol 30 (1) ◽  
pp. 213-222
Author(s):  
Armi Kaila

Results are reported from a field trial on acid fen peat soil in which the effects of superphosphate and ground soft rock phosphate were compared as annual surface dressing on an old timothy ley. Until 1948 basic slag was used instead of rock phosphate; since that rock phosphate had been applied for ten years. Owing to the large variation in the results from the replicate plots the differences in the phosphorus conditions between the various treatments were less distinct than could have been expected. The accumulation of phosphorus quite in the surface layer was demonstrated. The hay yield produced by the annual dressing with 100 kg/ha of superphosphate in 1957 was equal to that produced by 130 kg/ha of rock phosphate. Also the yields from the treatments with 200 kg/ha of superphosphate or 260 kg/ha of rock phosphate were equal in size, but a significant difference was found in the phosphorus content of hay. In the superphosphate plots the P-content was about 0.21—0.23 per cent of dry matter, whereas in the rock phosphate plots only 0.14—0.15 per cent P in the dry matter was found.


Agronomy ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 48 ◽  
Author(s):  
Jishi Zhang ◽  
Xilong Jiang ◽  
Qi Miao ◽  
Botao Yu ◽  
Liming Xu ◽  
...  

Certain minerals possess structures that convey properties which improve soil quality; however, their application in coastal saline areas has been poorly studied. In this study, we explored the effects of combining mineral amendments on the improvement of wheat yield and soil properties in a two-year field experiment in mildly saline coastal soil areas of the Yellow River Delta, China. Five mineral materials were combined into the following four treatments: zeolite + rock phosphate (ZP), zeolite + silica calcium soil conditioner (ZC), vermiculite + rock phosphate (VP), and vermiculite + medical stone (VS). For all treatments, combined mineral amendments increased wheat yield compared to the control, with similar increases in yield following treatment with VP (45.7%), ZP (43.5%), and ZC (43.6%), and a significantly smaller increase following VS treatment (26.3%). These increases in grain yield were attributed to larger dry matter accumulation and higher grain numbers per ha. Compared to the control, ZP and ZC application substantially reduced soluble magnesium (Mg) and sodium (Na) contents, electrical conductivity (EC), and sodium adsorption ratio (SAR), and increased soil organic carbon (SOC) at a soil depth of 0–20 cm. VP application increased soil available phosphorus (P) by 34.7% and soluble potassium (K) by 69.3% at a soil depth of 0–20 cm. VS application slightly increased the SOC, total nitrogen (N), available P, and soluble K compared to the control. Overall, these results indicate that combining mineral amendments significantly increases wheat yield and improves soil properties in a saline area. Thus, we recommend the use of mineral amendments in saline coastal areas.


1964 ◽  
Vol 44 (2) ◽  
pp. 180-187 ◽  
Author(s):  
W. S. Ferguson

Measurements of the phosphorus content of wheat at intervals during the growing season (1958–1962) indicated that percentage phosphorus in the growing plant was closely related to the amount of rainfall and to frequency of irrigation. The percentage phosphorus decreased during dry years or when irrigation was applied infrequently. This was attributed to the vertical stratification of available phosphorus in the soil since moisture use data indicated that a larger proportion of the active roots zone of the crop was in the phosphorus-deficient subsoil during dry periods. This relationship between percentage plant phosphorus and moisture supply was found with fertilized and unfertilized crops alike. However, frequent watering prior to the 5-leaf stage increased the difference in percentage plant phosphorus between fertilized and unfertilized wheat.Yearly variation (1936–1952) in the degree of plant response to phosphorus on a chernozemic soil was high. The degree of plant response was positively correlated with May rainfall and negatively correlated with June rainfall. It is proposed that this relationship existed because during years of above-normal May rainfall, phosphorus fertilizer was more efficiently utilized and with below-normal June rainfall a higher proportion of root development occurred in the phosphorus-deficient subsoil which increased phosphorus stress in the crop.


Author(s):  
Yohannes Gebremichael ◽  
Gebremedhen Gebretsadikan

A field experiment was conducted to study the effect of different nitrogen and phosphorus fertilizer rates on the growth and yield tomato at Northwestern Zone of Tigray during 2016-2017 cropping season under irrigation condition. It  is  the  most  cultivated  and  high  market  value  of  vegetable crops  in  Tigray  Northern Ethiopia. However, tomato production is limited due to low fertility of soil and inappropriate fertilizer rate. Six different levels of nitrogen (0, 23, 46, 69, 92 and 115 kg N /ha) and six different levels of phosphorus (0, 46, 69, 92,115 and 138 kg P2O5/ ha) were used and laid out in randomized complete block design with three replication. (Melkasalsa) tomato variety was used as a testing variety. The current findings showed that the highest marketable tomato fruit yield (61.16 t/ha) were obtained in 115 kg N/ha (250 kg urea/ha) and 92 kg P2O5 (200 kg Di Ammonium Phosphate DAP /ha).  But, the profitable yield obtained was at N2P2 (46 kg N & 69 P2O5 kg ha-1) that is 100 kg/ha of Urea combined with 150 kg/ha of DAP yield was obtained 48.25 t ha-1 and the profit was 235502 birr per ha with the maximum Marginal Rate of Return of 26.16%. Therefore, 100 kg/ha of urea with 150 kg/ha of DAP was recommended for the growers to improve tomato fruit productivity in the study area.


2016 ◽  
Vol 20 (1) ◽  
pp. 29
Author(s):  
Achmad Arivin Rivaie

A glasshouse trial was performed to determine changes in phosphorus (P) nutrition and the yield of sword bean (Canavalia ensiformis (L.) DC.) following the application of different rates and types of P fertilizer in an acid upland soil of East Lampung. Two different types of P fertilizer, namely SP-36 (total P = 36%) and Phosphate Rock (PR) (total P = 24.3%, particle size distribution = 75% <0.25 mm, 85% < 0.50 mm, 90% < 1.00 mm) were used in the trial. For the treatment, each P fertilizer type consisted of four rates (0, 50, 100 and 150 mg P2O5 kg-1 soil) that were arranged in a Completely Randomized Design with four replications. The results showed that the application of P fertilizers had significant effects on soil pH, soil plant-available P, the potential-P (HCl 25%), leaf N and P concentrations, the yield of sword bean. Increased rates of both forms of P fertilizer increased the soil pH values. As the soil used had low pH and very high exchangeable Al, hence, this result is most probably related to the addition of Ca2+ to the soil solution that resulted from the P fertiliser applied (liming effect), either from SP-36 (monocalcium phosphate) or PR (flour apatite). There was no difference in soil available P concentration due to the different in P fertilizer types, indicating that 4 months after the fertilizer application, the relatively insoluble Phosphate Rock had the same P solubility with SP-36. Increased rates of both forms of P fertilizer increased the sword bean yield. For the application of 0 kg P2O5 ha-1, although sword bean crops had pods, but, they did not give any seed. Whereas, at the addition of P fertilizer at the rate of 50, 100, and 150 kg P2O5 ha-1 for both P fertilizer types, the crops were able to give the seeds in the pods. [How to Cite: Achmad AR. 2015. Changes in Soil Available Phosphorus, Leaf Phosphorus Content and Yield of Sword Bean (Canavalia ensiformis (L.) DC.) by Application of SP-36 and Phosphate Rock on Acid Upland Soil of East Lampung. J Trop Soils 19: 29-36. Doi: 10.5400/jts.2015.20.1.29][Permalink/DOI: www.dx.doi.org/10.5400/jts.2015.20.1.29]


2020 ◽  
Vol 9 (2) ◽  
pp. 101
Author(s):  
Evans Mutange Akoto ◽  
Caleb O. Othieno ◽  
Julius O. Ochuodho

One of the major challenges facing potato (Solanum Tuberosum L) production in Kenya is the inadequate supply of high-quality seed. The required amount of potato seed in Kenya is about 70,000 tones annually but, only 1 % is available. Otherwise, farmers use low quality farm saved seed (KEPHIS, 2016). A major contributor to this situation is low and declining soil fertility, particularly phosphorus, among other challenges. Unfortunately, there is no available phosphorus fertilizer rate recommendation for seed potato production in Kenya. This hinders economic utilization of phosphorus fertilizers to achieve optimal production of quality potato seed in Kenya where its deficiencies are dominant. Therefore, this study investigated influence of different rates of phosphorus fertilizer on seed potato tuber yield and quality in three acidic (pH &le; 5.8) test sites: Lari, Ainabkoi and Saboti sub Counties. Unica and Shangi varieties were tested. The field experiment was a split plot arrangement in Randomised Complete Block Design (RCBD) with six treatments (0 N &amp; 0 P), 0, 30, 60, 90 and 120 kg ha-1 phosphorus, replicated three times. Data collected included tuber weight, number of tubers, tuber grade, number of eyes per tuber, tuber specific density and final germination percentage. To monitor soil nutrient dynamics, soil pH, soil available phosphorus, total nitrogen, total carbon, potassium, calcium, magnesium, copper, iron, zinc, sodium and exchangeable acidity (Lari only) were determined at planting while available phosphorus and potato tuber phosphorus were determined at harvesting. Data was statistically analysed using ANOVA at 5 % confidence levels with General Statistics (GENSTAT) and excel softwares. Results indicated that phosphorus rate significantly influenced seed tuber yield in the test sites. At Saboti, (0N &amp; 0P) and no phosphorus application treatments for Shangi and Unica resulted in the highest seed tuber yield of 33.7 t ha-1 and 33.2 t ha-1, respectively. At Ainabkoi, application of 60 kg ha-1 and 30 kg ha-1 phosphorus produced the highest seed tuber yields of 20.0 t ha-1 and 18.9 t ha-1 of Shangi and Unica, respectively. In Lari, application of 60 kg ha-1 and 90 kg ha-1 phosphorus produced the highest seed tuber yields of 19.0 t ha-1 and 10.4 t ha-1 of Shangi and Unica, respectively. Unica had better final germination percentage than Shangi. During the season, there was a build-up of soil available phosphorus. Thus, there is need for farmers to test their soils at the onset of every potato season.


Mathematics ◽  
2018 ◽  
Vol 6 (12) ◽  
pp. 330 ◽  
Author(s):  
Chengbiao Fu ◽  
Heigang Xiong ◽  
Anhong Tian

The study of field spectra based on fractional-order differentials has rarely been reported, and traditional integer-order differentials only perform the derivative calculation for 1st-order or 2nd-order spectrum signals, ignoring the spectral transformation details between 0th-order to 1st-order and 1st-order to 2nd-order, resulting in the problem of low-prediction accuracy. In this paper, a spectral quantitative analysis model of soil-available phosphorus content based on a fractional-order differential is proposed. Firstly, a fractional-order differential was used to perform a derivative calculation of original spectral data from 0th-order to 2nd-order using 0.2-order intervals, to obtain 11 fractional-order spectrum data. Afterwards, seven bands with absolute correlation coefficient greater than 0.5 were selected as sensitive bands. Finally, a stepwise multiple linear regression algorithm was used to establish a spectral estimation model of soil-available phosphorus content under different orders, then the prediction effect of the model under different orders was compared and analyzed. Simulation results show that the best order for a soil-available phosphorus content regression model is a 0.6 fractional-order, the coefficient of determination (), root mean square error (RMSE), and ratio of performance to deviation (RPD) of the best model are 0.7888, 3.348878, and 2.001142, respectively. Since the RPD value is greater than 2, the optimal fractional model established in this study has good quantitative predictive ability for soil-available phosphorus content.


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