scholarly journals Extraction methods and availability of micronutrients for wheat under a no-till system with a surface application of lime

2010 ◽  
Vol 67 (1) ◽  
pp. 60-70 ◽  
Author(s):  
Adriel Ferreira da Fonseca ◽  
Eduardo Fávero Caires ◽  
Gabriel Barth

Micronutrient availability can be affected by the increase of the soil pH due to surface liming. A field trial was carried out on a loamy, kaolinitic, thermic Typic Hapludox at Ponta Grossa, Paraná State, Brazil. The main objective was to evaluate the effects of surface liming and re-liming on the availability of micronutrients [copper (Cu), iron (Fe), manganese (Mn), and zinc (Zn)] for wheat (Triticum aestivum L.) cropped under a no-till system. A randomized complete block design was used in a split-plot arrangement. The main plots received surface lime applications (2, 4, and 6 Mg ha-1) in July 1993. In the subplots, surface lime (3 Mg ha-1) was applied again in June 2000. In 2003, before the wheat sowing, soil samples were taken at 0-5, 5-10, and 10-20 cm layers. Soil cationic micronutrients concentrations using different extractants (DTPA-TEA, Mehlich-1, HCl, and Mehlich-3) and solution/soil ratios were determined. Application of lime increased soil pH at 0-5, 5-10, and 10-20 cm. The increase in soil pH by liming did not affect soil organic carbon content. The Mehlich-3 solution had a greater capacity in extracting soil micronutrients. Increasing solution/soil ratio of the DTPA-TEA, Mehlich-1, and HCl solutions generally increased the extraction of Cu, Fe, Mn, and Zn. Liming and re-liming caused a decrease in Mn concentration in the wheat leaves. Leaf concentrations of Cu, Fe and Zn were not affected by liming treatments. The solutions of DTPA-TEA, Mehlich-1, HCl, and Mehlich-3 were ineffective to predict the soil cationic micronutrients availability for a wheat crop after surface application of lime.

1989 ◽  
Vol 61 (2) ◽  
pp. 89-97
Author(s):  
Raina Niskanen

The extractability of soil Al, Fe and Mn were studied in 102 mineral soil samples. The extractants were 0.05 M oxalate (pH 2.9), 0.05 M K4P2O7 (pH 10), 0.02 M EDTA (pH 5.3) and 1 M CH3COONH4 (pH 4.8). In the group of clay and silt soils (n = 51), the Al extracted by the four extractants correlated closely; the r values ranged from 0.91*** to 0.96***; in coarser soils (n = 51) the r values ranged from 0.42* to 0.82***. In clay and silt soils, the organic carbon content and soil pH together explained 50 % of the variation in oxalate-extractable Al, 70 % of the variation in pyrophosphate-extractable Al, 53 % of the variation in pyrophosphate-extractable Fe and 56 % of the variation in acetate-extractable Al. The clay and organic carbon contents together with soil pH explained 77 % of the variation in EDTA-extractable Al in clay and silt soils. In coarse soils, the extractable metals were not closely related to the soil characteristics.


2014 ◽  
Vol 50 (4) ◽  
pp. 516-532 ◽  
Author(s):  
SUSANA CHURKA BLUM ◽  
FERNANDO JOSÉ GARBUIO ◽  
HÉLIO ANTÔNIO WOOD JORIS ◽  
EDUARDO FÁVERO CAIRES

SUMMARYThe complex dynamics of the sulphur (S) cycle has prompted several questions concerning its bioavailability and evaluation by different extraction methods, and few studies under field conditions have been performed to elucidate available S on Brazilian soils under no-till (NT) cropping systems. A field experiment examined the effects of phosphogypsum (PG) applications on nutrient uptake and availability of S to maize and wheat crops under an NT system aiming to establish critic levels of S on an Oxisol (clay, kaolinitic, Rhodic Hapludox) in Parana state, Brazil. PG at the rates of 0, 3, 6 and 9 t ha−1was applied on the surface of the plots in 1998 upon conversion from pasture to an NT cropping system, and in 2004 subplots received either 0 or 6 t ha−1of PG on the surface. Effects of PG applications on nutrient uptake and available soil SO4-S to the maize and wheat crops were evaluated in 2004–2005. Increasing the surface-applied PG rate in 1998 increased Mg uptake by maize, and N, K, Ca and Mg uptake by wheat plants. Reapplication of PG in 2004 increased the uptake of N and P by maize, and the uptake of N, K, Ca and Mg by wheat plants. The PG rates surface-applied in 1998 have resulted in a long-term residual effect on soil by increasing SO4-S in surface and subsoil layers 6.5 and 7.5 years after application, affecting aboveground biomass, S uptake and S content in the leaves of the wheat crop. The reapplication of PG in 2004 increased maize S uptake, S content in leaves and grains and S exported by maize harvest, and increased wheat aboveground biomass, S uptake and S content in leaves. These effects were due to increasing available soil SO4-S from different depths extracted by 0.5 M ammonium acetate (NH4OAc) along with 0.25 M acetic acid (HOAc) and 0.01 M calcium phosphate (Ca(H2PO4)2). Both extractants were very similar in their ability to assess available soil S in these crops, and the 0–0.20-m layer is shown to be adequate for evaluating the concentration of available SO4-S in maize and wheat cultivated under NT.


2021 ◽  
Vol 04 (04) ◽  
pp. 1-12
Author(s):  
Mohammad Alim Behzad ◽  
◽  
Najibullah Omerkhil ◽  
Farida Faqiryar ◽  
◽  
...  

The purpose of this study was to determine the effect of seed rate on the growth and yield attributes of the wheat crop (Triticum aestivum L.) variety Mazar-99 under the agro-climatic conditions of Takhar province, Afghanistan. The experiment was implemented at the research farm of Agriculture Faculty of Takhar University in winter seasons of 2018-2019 with the specific objective of finding out the effect of five seeding rates as the treatment on growth and yield parameters of Mazar-99 variety of wheat. Randomized Complete Block Design (RCBD) was selected as an experiment design with 4 replications and 5 seeding rates viz. 80, 100, 120, 140 and 160 kg/ha made up treatments. Data on growth and yield parameters were collected and analyzed using Analysis of Variance (ANOVA) for Randomized Complete Block Design (RCBD). The result obtained from the current study reveal that all growth and yield characters were remarkably affected by seeding rate and seed rate of 100 kg per hectare of wheat variety Mazar-99 performed better with respect to different growth and yield parameters such as spike length, number of tillers, number of spike at each plant, leaf area, a total of spikelets per spike and stem girth, grain number/spike, the weight of spike, the weight of grain per spike, grain crop yield, straw crop weight, 1000-grain weight, and biological yield. Whereas 80 and 120 kg/ha were the second-best seeding rates after the 100 kg/ha. However, 160 kg/ha seed rate showed only superiority in plant height, but 140 kg/ha did not show any special superiority in any growth and yield characteristic evaluated in Takhar agro-climatic condition. Thus, a seeding rate of 100 kg per hectare could be recommended to the farmers for better wheat production in Takhar agro-climatic situation in North-Eastern Afghanistan.


Agric ◽  
2021 ◽  
Vol 33 (1) ◽  
pp. 23-28
Author(s):  
Endi Irfani ◽  
Yohanes Hendro Agus

Wheat in Indonesia is the second staple food. Wheat seed are processed to become wheat flour.From wheat flour can be made noodle, bread and other foods. One factor that is affected wheatproductivity is competition between wheat and weeds. The aim of the research were to know theaffect of weeding times toward growth and yield of wheat of Genotype 10, and to know weedingperiods that were critical periods of free weed of Genotype 10 wheat. This research usedRandomized Completely Block Design (RCBD) with eight treatments and five replications. Thetreatments tested were four periods of wheat crop without weeds and four periods of wheat cropwith weed. Research result data were analyzed by using analysis of variance (ANNOVA) andhonestly significant different (HSD) at 95% significant level. Research results showed that: (1)both periods with and without weeds affected number of tillers per clump, seed weight perpanicle, and (2) Seed weight per clump in period of weed controlled was highest significantlycompared with seed weight per clump in period with weed. It could be concluded that criticalweed- free periods of Genotype 10 of wheat were between 14 days until 42 days after sowing.


Author(s):  
Alexandre Da Silveira Camponogara ◽  
Gislayne Alves Oliveira ◽  
Jordana Georgin ◽  
Ana Lúcia Denardin da Rosa

This study aimed to evaluate the effects of applying different nitrogen sources in the states of booting and silking on yield components and the wheat crop productivity (Triticum aestivum L., Quartz - OR Seeds). The experiment was conducted in Frederico Westphalen-RS. The experimental design was a randomized complete block design, with eight treatments and four replications. The treatments consisted of combinations of different sources and forms of N application that follow: T1 - control (no N), T2 - Fertilization base + urea, T3 - Basic fertilization + ammonium nitrate, T4 - Fertilizing base + urea + foliar nitrogen, T5 - Basic fertilization + ammonium nitrate + foliar nitrogen, T6 - Basic fertilization + foliar nitrogen, T7 - Basic fertilization + urea + ammonium nitrate and T8 - Basic fertilization + ammonium nitrate + urea. The ammonium nitrate application associated with the supplemental foliar N resulted in an increase in grain yield of 51.5% over the control to the control. Other income components also obtained average with significant magnitudes verified by Duncan test at 5% error probability.


2014 ◽  
Vol 8 (3) ◽  
pp. 11-17
Author(s):  
Mohammed Mohei Salih ◽  
Hadi Mehdi Aboud ◽  
Neda Sallom Mohammed ◽  
Hadi Madi Sarheed ◽  
Mustafa Eubaid Ayed ◽  
...  

This investigation was conducted to determine the response of 24 genetic recombination of wheat crop to bioinoculation with mixture of Glomus mosseae (Nicolson&Trappe.) Gerd&Trappe 250 spores/gram soil and 10ml (107cfu/ml) of Azotobacter chroococcum /0.5meter seeded line. Treatments were distributed in randomly block design with three replicates on 2010-2011growing season. Growth parameters: Percentage of germination, flowering after 106 days of germination, Maturity after 130 days of cultivation, Number of branches after 126 days of cultivation, dry weight of vegetative growth, number of spikes in the line, number of grains per spike, average weight of 1000 grain, and total weight of seeds in the line were taken. Results revealed different response of the tested recombinations for biofertilizers effects.The recombination wahat al Iraq, Babil, M707, Mexipaq, Furat, Dijla, Um-rabee, Tamose2, Tamose3, Ure, M619B, M613, M606, M615A, M630, M621, and Noor reveald significant increasing differences in most growth and productivity parameters specialy Wahat al Iraq, M707, Mexipaq, M613 which recorded yield increament at 96,89,59,57% respectively,while the recombination Tellaafar3, Adnaaia, Medaaen , M612, M633A, M615B, M633B showed negative response and recorded reduction percentages 10,15 ,4 ,12 ,9,45,24% as comparison with control respectively.


Author(s):  
L. G. Ramanandan ◽  
Narendra Swaroop ◽  
Arun Alferd David ◽  
Tarence Thomas

Aims: To enhance soil quality, production, productivity and profit maximization with higher economic returns through integrated farming practices. In addition, to fulfill the needs of farmers economical point of view, academic, society and social reforms. Study Design: Effectiveness of organics with nitrogen levels and bio-fertilizers on soil chemico-biological properties of wheat (Triticum aestivum L.) crop [Cv.PBW-343] in Inseptisol. Place and Duration of Study: The cumulative study period of 2018-19 and 2019-20, at research farm, department of soil science and agricultural chemistry, naini agricultural institute, sam higginbottom university of agriculture, technology and sciences, which is located at 25°58’ North latitude and 81°52' East longitude with an altitude of 98 meter above mean sea level and is situated 5km away on the right, bank of Yamuna river. Methodology: Randomized block design fallowed here with 12 treatment combinations replicated 3 times. Recommended dose of fertilizers i.e. nitrogen, phosphorus and potassium, was applied @ 120:60:40 kg ha-1 as urea (46% N), single super phosphate (16% P2O5), muriate of potash (60% K2O) and zinc sulphate (21% Zn). The Azotobactor spp. and Azospirilium spp. (seed inoculants), applied at 3 kg ha-1 with farm yard manure @ 5 tha-1, at 5 cm depth in furrows, before seed sowing was done on 13th and 14th of November (2018-2019) with spacing of 22.5 X 5 cm. Wheat cultivar used here is  PBW-343 as a test crop. Results: The cumulative mean of  low soil pH (6.82), electrical conductivity (0.37 dS m-1) and free lime content (13.55%), the higher cation exchange capacity (16.37 cmol (p+) kg-1), higher available nitrogen, available phosphorus, available potassium and available sulphur of 262.12: 21.75:220.51:32.57 kg ha-1, respectively, high available iron and zinc (i.e. 3.90 and 1.79  mg kg-1), low available manganese and copper (3.77 and 0.31 mg kg-1), further the cumulative mean of dehydrogenase enzyme activity (1.49 µg triphenyl-formazan g-1 day-1), alkaline phosphatase activity (186.35 µg para-nitrophenol g-1 hr-1) and microbial biomass carbon (37.59 g kg-1) was labelled in treatment (T9) consisting of 75% N + farm yard manure @ 5 t ha-1 + Azotobacter spp + Azospirillum spp (3 kg ha-1) + zinc in comparison to in-organic application over control. Conclusion: The combined application of farm yard manure, Azotobacter spp and Azospirilium spp along with in-organics, has led to improvement in soil health potential, nutrient availability and yield sustenance under wheat crop cultivation.


Jurnal BiBieT ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Reni Elmiati ◽  
Zulfadly Syarif ◽  
Auzar Syarif

<p>Penelitian tumpangsari  gandum/caisim bertujuan untuk mengetahui pengaruh jarak tanam gandum (<em>Triticum aestivum L</em>.) dan waktu penanaman caisim (<em>Brassica rapa L</em>.) terhadap produktivitas gandum dan caisim. Caisim ditanam satu baris diantara dua baris gandum. Sebagai pembanding terhadap hasil, ditanam gandum dan caisim secara tunggal. Percobaan menggunakan rancangan acak kelompok (RAK)  faktorial dengan 3 ulangan. Perlakuan meliputi jarak tanam gandum 20cm x 25cm, 25cm x 25cm dan 30cm x 25cm dan waktu tanam caisim 9 minggu setelah tanam gandum (MSTg), 10 MSTg dan 11 MSTg. Penelitian ini dilakukan di lahan penelitian  BPTP Sumatera Barat, Arosuka dan Laboratorium Fisiologi Tanaman, Universitas Andalas, Padang. Hasil penelitian menunjukkan jarak tanam gandum dan waktu tanam caisim belum memberikan pengaruh terhadap pertumbuhan dan hasil tanaman gandum dan caisim. Untuk Land Equivalent Rasio (LER) dan Area Time Equivalent Ratio (ATER) menunjukkan sistem tumpangsari gandum/caisim lebih menguntungkan dibandingkan penanaman secara monokultur dengan diperolehnya nilai LER dan ATER &gt;1, sedangkan dari perhitungan Nisbah Kompetisi (NK) tanaman gandum dan caisim diperoleh gandum merupakan komponen dominan dalam sistem tumpangari gandum/caisim.</p><p> </p><p>The research of intercropping wheat/caisim aims to determine the effect of plant spacing of wheat (<em>Triticum aestivum L.</em>) and time planting of caisim (<em>Brassica rapa L.</em>) on the productivity of wheat and caisim. Caisim planted a row between two rows of what. As a comparison of the results and wheat or caisim planted single. Experiment using a randomized block design (RAK) factorial with 3 replications. Treatment includes seed spacing 20cm x 25cm, 25cm x 25cm and 30cm x 25cm and planting time of caisim 9 weeks after planting wheat (MSTg), 10 MSTg and 11 MSTg. The research was conducted in BPTP trials field West Sumatera, Arosuka and Plant Physiology Laboratory, Andalas University in Padang. The result showed seed spacing and time of planting caisim not have any impact on the growth and yield of wheat and caisim. For the Land Equivalent Ratio (LER) and Area Time Equivalent Ratio (ATER) showed wheat cropping system/caisim more profitable than planting in monoculture with LER values obtained and ater &gt; 1, while the Ratio of Competition (NK) wheat crop and wheat gained caisim is the dominant component in the intercropping system wheat/caisim.</p>


2021 ◽  
Vol 8 (2) ◽  
pp. 369-376
Author(s):  
Jessica Maria Purba ◽  
Budi Prasetya

Soil fertility degradation has been accelerated by the heavy use of inorganic fertilizers for a long time, especially in agroforestry lands of Sumbermanjing Wetan, Malang, East Java. This study was aimed to find out arbuscular mycorrhizae that can be used for improving soil fertility. This study was conducted by purposive random sampling continued by randomized block design with the measured variables were basal area, canopy, number of spores, percentage of root mycorrhizal colonization, soil pH, soil C-organic, available P, litterfall, and types of spores. The results showed that the most common type of spore found was Glomus sp. The spore populations depended on vegetation and were most commonly found in Albicia falcataria. The soil pH of agroforestry land ranged from 5.1 to 5.4, organic carbon content ranged from 3.43 to 4.04%, and available P content ranged from 7.7-9.9 kg P2O5 ha-1. Vegetation affected the soil physicochemical and biological properties.


2002 ◽  
Vol 59 (2) ◽  
pp. 357-364 ◽  
Author(s):  
Eduardo Fávero Caires ◽  
Itacir Cesar Feldhaus ◽  
Gabriel Barth ◽  
Fernando José Garbuio

Root growth and crop yield can be affected by chemical modifications of the soil profile owing to lime and gypsum applications. A field trial was carried out on a dystrophic Clayey Rhodic Hapludox at Ponta Grossa, PR, Brazil, aiming to evaluate lime (without or with incorporation into the soil) and gypsum effects on root growth, mineral nutrition and grain yield of wheat (cv. OR 1). A randomized complete block design was used, with three replications, in a split-plot experiment. Treatments with dolomitic limestone (without lime and 4.5 t ha-1 of lime applied on the surface, in total rate and 1/3 of the requirement per year during 3 years, or incorporated into the soil) were applied in July 1998 (main plots) and the rates of gypsum (0, 3, 6 and 9 t ha-1) in October 1998 (subplots). Wheat was evaluated in the 2000 winter season. In conditions of water deficit absence, there was no limitation in root growth in depth, for exchangeable Ca of 6 mmol c dm-3. Lime incorporation of lime increased the Mg concentration in the leaves, but wheat yield was not influenced by the correction of soil acidity through liming treatments. Gypsum increased the concentrations of Ca and S in wheat leaves, with significant effects on grain yield. The critical level of S-SO4(2-) in the 0-20 cm soil layer, extracted by ammonium acetate 0.5 mol L-1 in acetic acid 0.25 mol L-1, was 25.8 mg dm-3.


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