Phosphorus nutrition of large-seeded chickpea cv. Macarena (Cicer arietinum) in the Ord River Irrigation Area, Western Australia

1994 ◽  
Vol 34 (6) ◽  
pp. 797 ◽  
Author(s):  
IT Riley
Keyword(s):  
Cicer Arietinum ◽  
Field Trials ◽  
First Year ◽  
Residual Soil ◽  
Irrigation Area ◽  
Soil P ◽  
Growing Seasons ◽  
History Of ◽  
Second Year ◽  
A Site

The phosphorus (P) nutrition of largeseeded chickpea (Cicer arietinum) cv. Macarena grown on Cununurra clay in the Ord River Irrigation Area was studied in field trials and by sampling commercial crops. Response to applied and residual P on a previously uncropped site (site 1) was examined over 2 growing seasons and to applied P on a site with a history of cropping (site 2) in 1 season. At site 1, yield increased with application of up to 50 kg P/ha in the first year and 100 kg P/ha in the second year. There was no significant response in the second year to the P applied in the previous season, probably because of rapid fixation of P in Cununurra clay. At site 2, with a residual soil P level of 24 �g/g (HCO3), no growth response to applied P was observed. The survey of commercial crops included determination of P in soil, foliage, and seed, and the recording of phosphatic fertilisers applied. The data indicate that excessive P fertiliser is applied to many chickpea crops, with only a few crops being inadequately supplied.

scholarly journals Phosphorus effects of recycled products from municipal wastewater on crops in a field experiment

2017 ◽  
Vol 63 (No. 10) ◽  
pp. 475-482 ◽  
Author(s):  
Vogel Telse ◽  
Nelles Michael ◽  
Eichler-Löbermann Bettina
Keyword(s):  
Field Experiment ◽  
Municipal Wastewater ◽  
Spring Barley ◽  
P Uptake ◽  
Control Treatment ◽  
First Year ◽  
Soil P ◽  
Second Year ◽  
Fertilizing Effect ◽  
Sludge Ash

In this study, the phosphorus (P) fertilizing effects of struvite, one thermochemical-treated sewage sludge ash (SSA) based on Ca-P (Ca-SSA) and one full sulfuric acid-digested SSA based on Al-P (Al-SSA) were analysed in comparison to triple superphosphate (TSP) and a control treatment (CON) without P application in a two-year field experiment. In the field experiment, the effects of the recycling products on crop yield, P uptake and labile soil P fractions were analysed. In addition, the effect of nitrogen and magnesium contained in struvite was investigated in the second year of the experiment compared to TSP and CON. In the first year, spring barley was cultivated in the field experiment; and in the second year, it was forage rye followed by sorghum. In the second year, the relative P effectiveness (forage rye, sorghum) of the recycling products compared to TSP increased in the order: Ca-SSA (81%, 91%) ≤ Al-SSA (91%, 96%) = struvite (102%, 110%). In addition, an magnesium fertilizing effect of struvite could be demonstrated. The results show that the recycling products from wastewater treatment are appropriate to substitute rock phosphate-based fertilizers.

scholarly journals Assessment of the Potential of 1-Methylcyclopropene Treatments to Maintain Fruit Quality of the Common Fig (Ficus carica L. cv. ‘Bursa Siyahi’) during Refrigerated Storage

2014 ◽  
Vol 42 (2) ◽  
pp. 516-522 ◽  
Author(s):  
Okan OZKAYA ◽  
Songül ÇÖMLEKÇIOGLU ◽  
Hatice DEMIRCIOGLU
Keyword(s):  
Respiration Rate ◽  
Cold Storage ◽  
Ficus Carica ◽  
Soluble Solids ◽  
First Year ◽  
Limited Effect ◽  
Growing Seasons ◽  
The Common ◽  
Second Year

The fig fruit is a unique, climacteric, highly perishable subject to rapid physiological breakdown. Application of 1-methylcyclopropene (1-MCP) was tested to delay ripening of black fig (Ficus carica L. cv. ‘Bursa Siyahi’) during storage overtwo growing seasons. Fruits were pre-cooled to 1 °C for 6 hours and afterwards treated with 500 or 1000 nl l-1 of 1-MCP for24 hours. Treated fruits were stored for 10 days at 1 °C, 90-95% RH and then evaluated. 1-MCP treatments showed thatethylene production, respiration rate, weight loss and concentrations of glucose, fructose and total soluble solids (TSS) were negatively correlated to the 1-MCP doses during cold storage (with the exception of TSS in the first year of experiment and respiration rate in the second year of the experiment). In contrast, pulp firmness and colour (ho) during cold storage werepositively correlated to the 1-MCP applied doses. Results of this study showed that although 1-methylcyclopropene applications slowed down fruit softening during the 10 days of storage, 1-methylcyclopropene appeared to have a relatively limited effect on slowing ripening of ‘Bursa Siyahi’ figs.

Shot-hole borer (Xyleborus fornicatus Eichh.) of tea in Ceylon II.—The effect of chemical control on the yield and manurial response of tea

1968 ◽  
Vol 57 (4) ◽  
pp. 619-641
Author(s):  
J. E. Cranham ◽  
P. Kanapathapillai ◽  
A. Kathiravetpillai
Keyword(s):  
Field Trials ◽  
First Year ◽  
Percentage Increase ◽  
Nitrogen Application ◽  
The Third ◽  
Prolonged Effect ◽  
Second Year ◽  
The Difference ◽  
Significant Regression ◽  
Effect On Yield

In 1960–65, six field trials were carried out on tea estates in Ceylon to assess the effect on yield, and on the response of the crop to fertilizer, of dieldrin sprays applied after pruning to control shot-hole borer (Xyleborus fornicatus Eichh.). Periodic sampling was carried out to assess the numbers of borers and their galleries. Yields were recorded by weekly or fortnightly weighings of the green leaf plucked, over pruning cycles of two to four years.The pattern of the yield increases on the sprayed plots was related to the difference in attack between the sprayed and unsprayed plots. Increases were, in general, small in the first year and much larger in the second year, reaching peak values of 32–58 per cent. (on the yields of successive three-monthly periods recorded) in the late second year, and declining thereafter through the third year as the difference in attack declined. Over the first two years there were marked yield increases in eight of the nine pruning cycles, and these ranged from 11·7 per cent, to 26·3 per cent. There was significant regression (P<0·001) of the percentage increase in yield on the maximum difference in gallery counts. Yield increases in the third year of pruning cycles were also considerable and the results evidence a prolonged effect of the heavy borer attack occurring in the second year.In one trial there was a significant interaction between the effects of dieldrin spraying and of nitrogen supplied. Control of the borer greatly improved the crop response to nitrogen. Nitrogen application increased the yield but resulted also in a proportionately larger loss of crop from borer attack. There was a small but significant increase in the number of borer galleries on the plots receiving nitrogen.The evidence on the size and pattern of crop losses caused by the borer suggests that these occur both from shoot breakages and from the direct effect of galleries on the growth of stems.The significance of the results in relation to estate practice, and the economics of spraying, are briefly discussed.

scholarly journals Fungal diseases of chickpea (Cicer arietinum L.) cultivated in the south region of Poland

2017 ◽  
Vol 38 (SI 2 - 6th Conf EFPP 2002) ◽  
pp. 332-335
Author(s):  
S. Mazur ◽  
J. Nawrocki ◽  
J. Kućmierz
Keyword(s):  
Rhizoctonia Solani ◽  
Botrytis Cinerea ◽  
Cicer Arietinum ◽  
Weather Conditions ◽  
Fusarium Avenaceum ◽  
First Year ◽  
Cicer Arietinum L ◽  
Genus Fusarium ◽  
Alternaria Sp ◽  
Second Year

The investigations carried out in the last years showed that weather conditions were conductive to growth of chickpea (Cicer arietinum L.) in Poland. Our experiments started since 2000 on two cultivars Myles and Sanford. Evans replaced cv. Sanford in second year. The results pointed to the cv. Myles as generally healthiest and the percentage of infested plants was 3.2% in the first year and 0.92% in the next year. The experiment showed that the most important threats for plants during vegetation season were fungi from the genus Fusarium and Rhizoctonia solani, isolated most often from roots. The basal parts of the stems affected mainly Alternaria genus. Botrytis cinerea, Fusarium avenaceum and Alternaria sp. attack most frequently pods and seeds.

scholarly journals Early selection of elite plants in Asparagus

Bragantia ◽  
2000 ◽  
Vol 59 (1) ◽  
pp. 21-26 ◽  
Author(s):  
ENRIQUE LUIS COINTRY ◽  
FERNANDO SEBASTIÁN LÓPEZ ANIDO ◽  
ILEANA GATTI ◽  
VANINA PAMELA CRAVERO ◽  
INÉS TERESA FIRPO ◽  
...  
Keyword(s):  
Yield Components ◽  
Total Yield ◽  
Selection Criterion ◽  
First Year ◽  
Population Total ◽  
The Third ◽  
Growing Seasons ◽  
Second Year ◽  
Efficient Selection ◽  
Selection Of

In order to establish an efficient selection criterion the variability in three asparagus populations was evaluated defining the most important yield components and analysing its evolution along three growing seasons. The yield components, coefficient of variation (CV) and the proportion of plants contributing to 80% of the total yield were estimated. The elite plants were selected by mean of total yield and clusters techniques. Multiple regression showed that spear number (SN) and spear weight (SW) were the most important yield components. In every population, total yield (TY) and SN showed the highest values of CV, independently of sex. 69% of the plants contributed to the 80% of the total yield in the first year while in the second and third year the contribution was 57%. At the end of the third year, 17 plants were selected by the average of the total yield and 43 by clusters. It is suggested to select for SW in the first year, reducing in 68% the experimental material. In the second year, the selection for SN would reduce to 5% the plants to evaluate for total yield in the third year. In this way the selected plants are the same but the number of plants to evaluate is dramatically reduced along the years, therefore facilitating the breeders work.

scholarly journals Evaluating a Natural Zeolite as an Amendment for Extensive Green Roof Substrate

2012 ◽  
Vol 30 (4) ◽  
pp. 201-206
Author(s):  
Jennifer M. Bousselot ◽  
James E. Klett ◽  
Ronda D. Koski
Keyword(s):  
Digital Image Analysis ◽  
Plant Cover ◽  
Green Roof ◽  
First Year ◽  
Extensive Green Roof ◽  
Dragon’S Blood ◽  
Growing Seasons ◽  
Plant Area ◽  
Sedum Acre ◽  
Second Year

This research examined soilless green roof substrate blends on an existing modular extensive green roof in Denver, Colorado, USA. Substrate blends evaluated include an extensive green roof substrate, Green Grid® and Green Grid® plus varying percentages of ZeoPro™ H-Plus. Plant taxa used included Sedum acre L., Sedum album L., Sedum spurium Marsch-Bieb. ‘Dragon's Blood’ and S. spurium ‘John Creech’. Substrate blends were evaluated based on plant taxa growth performance. Data collected included digital images to measure plant area covered using digital image analysis (DIA) and substrate volumetric moisture content (VMC). All data were analyzed over two growing seasons using the GLIMMIX procedure in SAS as multiple comparisons of substrate blends for each taxa, DIA data were analyzed from eight dates and VMC data were analysed from seven dates. The addition of zeolite (ZeoPro™) to the typical extensive green roof substrate improved establishment year plant cover for S. acre and S. album but hindered overwintering. Conversely, the two cultivars of S. spurium did not show a benefit of plant cover from the addition of ZeoPro™ in the first year but did the second year. As the percentage of ZeoPro™ in the substrate increased, VMC also increased.

scholarly journals Colonization and community development of fish assemblages associated with estuarine artificial reefs

2011 ◽  
Vol 59 (spe1) ◽  
pp. 55-67 ◽  
Author(s):  
Heath Folpp ◽  
Michael Lowry ◽  
Marcus Gregson ◽  
Iain M. Suthers
Keyword(s):  
Community Development ◽  
Fish Assemblages ◽  
Artificial Reef ◽  
Artificial Reefs ◽  
First Year ◽  
Scientific Evaluation ◽  
Coastal Barrier ◽  
History Of ◽  
Second Year ◽  
Distinct Separation

Despite the long history of the development of artificial structures in NSW estuaries there are no studies that provide any comprehensive scientific evaluation of post-deployment goals. We assessed the effectiveness of estuarine artificial reefs as a fisheries enhancement initiative; described the diversity and abundance of species associated with them, and detailed the patterns of colonization and community development associated with an artificial reef deployment in Lake Macquarie, a large coastal barrier lagoon on the southeast coast of Australia. Six artificial reefs (one artificial reef group), constructed from artificial reef units (Reef Balls®), were deployed in December 2005 and sampled six times per season over two years using baited remote underwater video (BRUV). Colonization of the artificial reef group was relatively rapid with the majority of species identified over the two-year study period observed within the first year post-deployment. Overall, 27 species from 17 families were identified. Key colonising species included Pelates sexlineatus (Terapontidae), Acanthopagrus australis (Sparidae), Pagrus auratus (Sparidae) and Rhabdosargus sarba (Sparidae). Species richness showed evidence of potential seasonal fluctuations, being higher in warm water months (Summer/Autumn), and lower in the colder water months (Winter/Spring), while species diversity increased significantly with reef age. Fish assemblage composition remained relatively stable after the first year of sampling, with few discernible patterns in assemblage structure evident after the first year. Distinct separation in reef age groupings was evident during the second year of sampling; a pattern primarily driven by a decrease in abundance of P. sexlineatus, a result of the isolated nature of the artificial reefs and the interrelated effects of density dependence and predation.

Sovereignty and Soil

2017 ◽  
Author(s):  
Scott Freeman
Keyword(s):  
Environmental History ◽  
Agricultural Practices ◽  
Conservation Strategies ◽  
Wage Labor ◽  
Agricultural Labor ◽  
Soil P ◽  
Foreign Intervention ◽  
History Of ◽  
Cooperative Labor ◽  
A Site

“Sovereignty and Soil” analyses how agricultural labor and the non-adoption of soil conservation strategies becomes a site of resistance to the impositions of foreign aid. Throughout Haiti’s agricultural and environmental history, foreign intervention has laid claim to the trees and crops of Haiti, and in doing so has threatened the very stuff of sovereignty: Haiti’s soil. Not only is it important to consider the history of agricultural extraction in Haiti, it is equally important to consider the efforts of international aid that ostensibly attempt to rectify such ills. This contemporary ethnographic research details how environmental aid projects have unsuccessfully attempted to use Haiti’s collective labor groups as a site for individualized wage labor incentives. The impositions of individualized wage labor are in stark contrast to the way that Haitian cooperative labor groups work for group rather than individual benefit. Ultimately, this article documents how long held agricultural practices are continuing assertions of rural solidarity.

Effect of Bacterial Inoculation and Different Phosphorus Doses on Yield Components and Yield of Chickpea (Cicer arietinum L.)

2019 ◽  
Author(s):  
N Bildirici
Keyword(s):  
Grain Yield ◽  
Cicer Arietinum ◽  
Yield Components ◽  
Block Design ◽  
First Year ◽  
Cicer Arietinum L ◽  
Randomized Block Design ◽  
Affected Plant ◽  
Second Year ◽  
Number Of Branches

This research was carried out in 2014-15 to determine yield and yield components of Azkan chickpea (Cicer arietinum L.) varieties with four different phosphorus doses and rhizobium bacteria in Van-Gevaº ecological conditions. The experiment was established as a randomized block design with three replications. The results of the research indicated that inoculation and phosphorus doses affected plant height, height of first pods, number of branches per plant, number of pods per plant, number of grain per plant and grain yield significantly. Grain yield averages ranged between 1556.10-1682.30 kg ha-1 in the first year and 1628.90-1677.30 kg ha-1 in the second year. When the results of inoculation and phosphorus doses were examined, the highest grain yield in both the years (1894.90-1867.70 kg ha-1, respectively) was obtained with 80 kg ha-1 phosphorus doses applied to inoculated plots. Increases in inoculation and phosphorus doses increased the grain yield.

scholarly journals FOLIAR APPLICATION OF SILICON ON YIELD COMPONENTS OF WHEAT CROP

2017 ◽  
Vol 30 (3) ◽  
pp. 578-585 ◽  
Author(s):  
THOMAS NEWTON MARTIN ◽  
UBIRAJARA RUSSI NUNES ◽  
JESSICA DEOLINDA LEIVAS STECCA ◽  
DIÓGENES BARELLA PAHINS
Keyword(s):  
Yield Components ◽  
Harvest Index ◽  
Foliar Application ◽  
Wheat Crop ◽  
First Year ◽  
Wheat Cultivars ◽  
Growing Seasons ◽  
Winter Crop ◽  
Second Year ◽  
Weight Number

ABSTRACT Wheat is a major winter crop in southern Brazil. To maximize its productivity, there should be no biotic or abiotic restrictions that can affect the yield components. Thus, the objective was to evaluate the changes caused in the wheat crop yield components by silicon foliar application. The experiment was conducted in two growing seasons. In the first year, five wheat cultivars (Quartzo, Campo Real, Onix and Fundacep Lineage) were assessed and in the second year four were assessed (Mirante, Campo Real, Horizonte and Quartzo). In both years the crops were subjected to three doses of silicon (0, 3 and 6 L of silicon ha -1). The silicon was applied during the tillering, booting and anthesis stages. The yield components assessed were the number of plants, number of ears, number of fertile tillers, dry matter per plant, hectoliter weight, number of spikelets, number of grains per spike, weight of hundred grains, grain yield and harvest index. Most yield components did not respond to the silicon foliar application. The harvest index (first year) and the number of tillers (second year) however presented a quadratic relationship with the supply of silicon. The remaining differences were attributed to variations among the wheat cultivars.

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