Phosphorus and Compost Management Influence Maize (Zea mays) Productivity Under Semiarid Condition with and without Phosphate Solubilizing Bacteria

Amanullah, .; Khan, Adil

doi:10.3389/fpls.2015.01083

Cited by 24 publications

(14 citation statements)

References 37 publications

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“…The effects of PGP bacteria on annual crops have also been the focus of research (Bashan et al 2014 and references therein). For instance, phosphate-solubilizing bacteria were shown to be effective in enhancing maize yields (Khan and Khan 2015). Our data extend understanding of the role played by PGP bacteria at the field level in arboreal plants, such as grape.…”

Section: Discussionsupporting

confidence: 49%

Root-associated bacteria promote grapevine growth: from the laboratory to the field

et al. 2016

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Background and Aims Laboratory and greenhouse experiments have shown that root-associated bacteria have beneficial effects on grapevine growth; however, these effects have not been tested in the field. Here, we aimed to demonstrate whether bacteria of different geographical origins derived from different crop plants can colonize grapevine to gain a beneficial outcome for the plant leading to promote growth at the field scale. Methods To link the ecological functions of bacteria to the promotion of plant growth, we sorted fifteen bacterial strains from a larger isolate collection to study in vitro Plant Growth Promoting (PGP) traits. We analysed the ability of these strains to colonise the root tissues of grapevine and Arabidopsis using greenfluorescent-protein-labelled strain derivatives and a cultivation independent approach. We assessed the ability of two subsets randomly chosen from the 15 selected strains to promote grapevine growth in two field-scale experiments in north and central Italy over two years. Parameters of plant vigour were measured during the vegetative season in de novo grafted vine cuttings and adult productive plants inoculated with the bacterial strains. Results Beneficial bacteria rapidly and intimately colonized the rhizoplane and the root system of grapevine. In the field, plants inoculated with bacteria isolated from grapevine roots out-performed untreated plants. In both the tested vineyards, bacteria-promotion effects largely rely in the formation of an extended epigeal system endowed of longer shoots with larger diameters and more nodes than non-inoculated plants.Conclusions PGP bacteria isolated in the laboratory can be successfully used to promote growth of grapevines in the field. The resulting larger canopy potentially increased the photosynthetic surface of the grapevine, promoting growth.

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Section: Discussionsupporting

confidence: 49%

Root-associated bacteria promote grapevine growth: from the laboratory to the field

et al. 2016

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“…One major reason for low rice yield in Pakistan is imbalanced nutrient application (Amanullah and Hidayatullah, 2016 ; Amanullah and Inamullah, 2016a , b ). Integrated use of chemical fertilizers along with organic manure has been widely recommended for sustaining agricultural production in Northwest Pakistan (Amanullah and Inamullah, 2015 ; Amanullah and Khan, 2015 ; Amanullah and Khalid, 2016 ). Improved management practices such as incorporation of crop residue, animal manures along with chemical fertilizers application increase soil organic carbon and improve crop productivity (Six et al, 2002 ; Vanden et al, 2003 ; Rakshit et al, 2008 ; Amanullah and Hidayatullah, 2016 ; West and Post, 2002 ).…”

Section: Introductionmentioning

confidence: 99%

“…It is always inadequate under rice based system in Northwest Pakistan to meet the requirement of rice plants (Amanullah and Inamullah, 2016a , b ). Recent research conducted on different field crops suggested that low organic matter content (Materechera, 2010 ; Verhulst et al, 2011 ; Enujeke, 2013 ; Hidaytaullah and Amanulla, 2015 ; Iqbal et al, 2015 ; Amanullah and Hidayatullah, 2016 ; Amanullah and Khalid, 2016 ) and low availability of phosphorus (Garg and Bahla, 2008 ; Alam et al, 2009 ; Bakhsh et al, 2012 ; Rasavel and Ravichandran, 2013 ; Yoseftabar, 2013 ; Amanullah and Khan, 2015 ; Amanullah and Inamullah, 2016a , b ; Amanullah and Khalid, 2016 ) reduce crop productivity all over the world. Integrated use of mineral phosphorus along with animal manures or plant residues can improve rice growth and yield.…”

Section: Introductionmentioning

confidence: 99%

Growth and Productivity Response of Hybrid Rice to Application of Animal Manures, Plant Residues and Phosphorus

et al. 2016

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The objective of this research was to evaluate the impact of organic sources (animal manures vs. plant residues at the rate of 10 t ha−1 each) on the productivity of hybrid rice (Oryza sativa L.) production under different levels of phosphorus (0, 30, 60, and 90 kg P ha−1) fertilization. Two separate field experiments were conducted. In experiment (1), impact of three animal manures sources (cattle, sheep, and poultry manures) and P levels were studied along with one control plot (no animal manure and P applied) was investigated. In experiment (2), three plant residues sources (peach leaves, garlic residues, and wheat straw) and P levels were studied along with one control plot (no plant residues and P applied). Both the experiments were carried out on small land farmer field at District Swabi, Khyber Pakhtunkhwa Province (Northwest Pakistan) during summer 2015. The results revealed that in both experiments the control plot had significantly (p ≤ 0.05) less productivity than the average of all treated plots with organic sources and P level. The increase in P levels in both experiments (animal manure vs. plant residues) resulted in higher rice productivity (90 > 60 > 30 > 0 kg P ha−1). In the experiment under animal manures, application of poultry manure increased rice productivity as compared with sheep and cattle manures (poultry > sheep > cattle manures). In the experiment under plant residues, application of peach leaves or garlic residues had higher rice productivity than wheat straw (peach leaves = garlic residues > wheat straw). On average, rice grown under animal manures produced about 20% higher grain yield than rice grown under crop residues. We conclude from this study that application of 90 kg P ha−1 along with combined application of animal manures, especially poultry manure increases rice productivity. Also, the use of either garlic residues or peach leaves, never applied before as organic manures, can increase crop productivity and will help in degraded soil for sustainable soil management.

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“…Number of seeds ear −1 was calculated on ten randomly selected ears from each plot and then average was worked out. Data on number of ears 100 plants −1 was calculated by counting number of ears in 100 plants and then it was averaged (Amanullah and Khan, 2015). ” Three central rows of each treatment was harvested the material was dried and converted into biological yield (kg ha −1 ).…”

Section: Methodsmentioning

confidence: 99%

“…The reasons for low crop productivity in semiarid climate are: (1) low soil moisture availability (2) low soil fertility (Amanullah et al, 2012), and (3) indiscriminate use of chemical fertilizers by smallholders (Amanullah et al, 2015a). According to Oad et al (2004) and Amanullah and Khan (2015), the major problems in the way of increasing yield at farmer's fields are the inappropriate nutrients supply. Among the plant nutrients, nitrogen (N) management is one of the most important factor required for improving crop productivity and profitability under semiarid climates (Amanullah, 2016).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen Source and Rate Management Improve Maize Productivity of Smallholders under Semiarid Climates

et al. 2016

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Nitrogen is one of the most important factor affecting maize (Zea mays L.) yield and income of smallholders under semiarid climates. Field experiments were conducted to investigate the impact of different N-fertilizer sources [urea, calcium ammonium nitrate (CAN), and ammonium sulfate (AS)] and rates (50, 100, 150, and 200 kg ha−1) on umber of rows ear−1 (NOR ear−1), number of seeds row−1 (NOS row−1), number of seeds ear−1 (NOS ear−1), number of ears per 100 plants (NOEP 100 plants−1), grain yield plant−1, stover yield (kg ha−1), and shelling percentage (%) of maize genotypes “Local cultivars (Azam and Jalal) vs. hybrid (Pioneer-3025).” The experiment was conducted at the Agronomy Research Farm of the University of Agriculture Peshawar during summers of 2008 (year one) and 2010 (year two). The results revealed that the N treated (rest) plots (the average of all the experimental plots treated with N) had produced higher yield and yield components, and shelling percentage over N-control plots (plots where N was not applied). Application of nitrogen at the higher rate increased yield and yield components in maize (200 > 150 > 100 > 50 kg N ha−1). Application of AS and CAN had more beneficial impact on yield and yield components of maize as compared to urea (AS > CAN > urea). Hybrid maize (P-3025) produced significantly higher yield and yield components as well as higher shelling percentage than the two local cultivars (P-3025 > Jalal = Azam). Application of ammonium sulfate at the rate of 200 kg N ha−1 to hybrid maize was found most beneficial in terms of higher productivity and grower's income in the study area. For the two local cultivars, application of 150 kg N ha−1 was found more beneficial over 120 kg N ha−1 (recommended N rate) in terms of greater productivity and growers income.

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Phosphorus and Compost Management Influence Maize (Zea mays) Productivity Under Semiarid Condition with and without Phosphate Solubilizing Bacteria

Cited by 24 publications

References 37 publications

Root-associated bacteria promote grapevine growth: from the laboratory to the field

Root-associated bacteria promote grapevine growth: from the laboratory to the field

Growth and Productivity Response of Hybrid Rice to Application of Animal Manures, Plant Residues and Phosphorus

Nitrogen Source and Rate Management Improve Maize Productivity of Smallholders under Semiarid Climates

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