SHORT COMMUNICATION: Lime-amended acid soil has elevated pH 30 years later

1996 ◽  
Vol 76 (1) ◽  
pp. 59-61 ◽  
Author(s):  
H. J. Beckie ◽  
H. Ukrainetz
Keyword(s):  
Triticum Aestivum ◽  
Brassica Rapa ◽  
Soil Acidity ◽  
Short Communication ◽  
Acid Soil ◽  
Triticum Aestivum L ◽  
Available Phosphorus ◽  
Single Application ◽  
Soil Available Phosphorus ◽  
Phosphorus Levels

Lime-amended acid soil (a single application in 1963 at rates of 4.5 and 6.7 t ha−1) at Scott, Saskatchewan had pH of 0.5 and 1.1 units higher, respectively, than unlimed soil, when measured more than 30 yr later in 1994. However, no differences in soil-available phosphorus levels and crop yield were detected. Key words: Soil acidity, lime, phosphorus, Brassica rapa L., Triticum aestivum L.

scholarly journals Effects of crop type on soil microbial properties in the cropland of the Jianghan plain of China

2018 ◽  
Vol 64 (No. 9) ◽  
pp. 421-426
Author(s):  
Li Jun ◽  
Liu Lixin ◽  
Zhang Chunlei ◽  
Chen Chang ◽  
Lu Guangyuan ◽  
...  
Keyword(s):  
Triticum Aestivum L ◽  
Invertase Activity ◽  
Shannon Index ◽  
Available Phosphorus ◽  
Jianghan Plain ◽  
Brassica Napus L ◽  
Microbial Properties ◽  
Soil Microbial ◽  
Soil Available Phosphorus ◽  
Soil Microbial Properties

Soil microbial properties are varied by growing different crops, ultimately reflecting the growth and reproduction of crops. In this study, two types of oilseed rape (Brassica napus L. ZS11 and ZY821) and wheat (Triticum aestivum L. ZM9023) were planted in the Jianghan plain of China. Rhizosphere soil samples were collected three months after sowing. Soil physicochemical properties, enzyme activities and microbial diversity were determined. The results showed that soil available phosphorus significantly increased from 25.57 mg/kg (ZM9023) to 33.20 mg/kg (ZS11) and 35.72 mg/kg (ZY821), respectively. Invertase activity of ZS821 (0.86 mg glucose/g) was significantly lower than in ZS11 (1.04 mg glucose/g). Acid phosphatase activity under planting rapes was significantly higher than that under wheat. Urease activities significantly increased from 40.88 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (NFP) to 49.04 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (FNP) and 51.28 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (ZM9023), 51.60 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (ZY821) and 52.28 mg NH<sub>4</sub><sup>+</sup>-N/g soil/24 h (ZS11), respectively. The ACE (abundance based coverage estimator) and Chao1 indexes of bacteria of ZS11 were lower than ZY821, which were similar to ZM9023. Fertilization increased soil bacterial ACE and Chao1 indexes. However, ACE and Chao1, Shannon and Simpson indexes of soil fungi for ZS11 were significantly higher than in ZY821, which were similar to ZM9023 (except for the Shannon index).

Inflorescence development of semidwarf and standard height wheat cultivars in different photoperiod and nitrogen treatments

1973 ◽  
Vol 51 (5) ◽  
pp. 941-956 ◽  
Author(s):  
David P. Holmes
Keyword(s):  
Triticum Aestivum ◽  
Shoot Apex ◽  
Growth And Development ◽  
Triticum Aestivum L ◽  
Day Length ◽  
Wheat Cultivars ◽  
Inflorescence Development ◽  
Nitrogen Levels ◽  
Nitrogen Treatments ◽  
Phosphorus Levels

A comparative study was made of the growth and development of the shoot apex/inflorescence in two contrasting spring wheat (Triticum aestivum L.) cultivars: Marquis—a standard height, day-length-sensitive type; and Pitic 62—a semidwarf, Norin 10 derivative with relatively low day-length sensitivity. The effects of 8-, 12-, 16-, 20-, and 24-h photoperiods and of two nitrogen levels in 12 and 20 h on both cultivars were determined, as well as those of two phosphorus levels on Marquis in 20 h.Apical primordium production continued for a longer duration in Pitic than in Marquis, and the initiation of spikelet primordia was delayed. Spikelet development was more synchronous in Pitic than in Marquis in all treatments. Apical spikelet formation always coincided in both cultivars with the initiation of rachis internode extension. Inflorescence development after termination of spikelet primordia formation was as fast in Pitic as in Marquis (or faster in short photoperiods).In general, increasing N increased the rate and duration of primordium production (apical spikelet formation occurring later at high N), and delayed inflorescence development and extension. These effects were more pronounced in Pitic, resulting in much greater N responses for spikelet and grain numbers per spike, and for grain yields per spike. Effects of high P were similar to those of high N. Increasing photoperiod increased the rate, but decreased the duration of primordium production, and accelerated the development and the extension growth of the inflorescence.The results are discussed in relation to a postulated involvement of endogenous gibberellins and inhibitors in the regulation of inflorescence growth and development.

scholarly journals Effect of genotypic background on haploid production through embryo rescue in wheat × maize crosses – Short Communication

2011 ◽  
Vol 51 (No. 4) ◽  
pp. 193-196
Author(s):  
N. Singh ◽  
R.K. Behl ◽  
M.S. Punia
Keyword(s):  
Triticum Aestivum ◽  
Short Communication ◽  
Embryo Rescue ◽  
Triticum Aestivum L ◽  
Haploid Production ◽  
Haploid Embryos

Two high yielding wheat (Triticum aestivum L.) varieties were pollinated with seven agrarian superior varieties. F<sub>1</sub>&rsquo;s&nbsp;thus obtained were pollinated with diverse winter maize lines/composites and treated with a solution containing 2,4-D and GA<sub>3</sub>. The haploid embryos were rescued 13 to 16 days post pollination on MS<sub>1</sub> and MS<sub>4</sub> media. Out of&nbsp;15,&nbsp;only two crosses viz., (UP 2338 &times; HD 2285) F<sub>1</sub> &times; maize and (WH 533 &times; PBW 343) F<sub>1</sub> &times; maize resulted in callus development and direct germination via embryo rescue.

Short communication. Trends in estimated optimum seeding date for winter wheat in the Atlantic Provinces

2011 ◽  
Vol 91 (6) ◽  
pp. 1101-1103
Author(s):  
A. Bootsma
Keyword(s):  
Triticum Aestivum ◽  
Winter Wheat ◽  
Air Temperature ◽  
Short Communication ◽  
Triticum Aestivum L ◽  
Warming Trend ◽  
Atlantic Region ◽  
The Past ◽  
Seeding Date

Bootsma, A. 2011.Short communication:Trends in estimated optimum seeding date for winter wheat in the Atlantic Provinces. Can. J. Plant Sci. 91: 1101–1103. Seeding date is an important management factor affecting the performance of winter wheat (Triticum aestivum L.) in the Atlantic region of Canada. In this study, decadal trends in estimated optimum seeding dates were estimated from air temperature in September and October at nine locations in the Atlantic region of Canada from as early as 1899. The optimum seeding period averaged over all locations was delayed by 8 d for the past 10 yr compared with earlier decadal periods. If the warming trend continues, producers will be able to seed winter wheat successfully at dates later than previously recommended.

scholarly journals 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

2020 ◽  
pp. 30-50
Author(s):  
L. G. Ramanandan ◽  
Narendra Swaroop ◽  
Arun Alferd David ◽  
Tarence Thomas
Keyword(s):  
Triticum Aestivum ◽  
Microbial Biomass Carbon ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Biological Properties ◽  
Wheat Crop ◽  
Available Phosphorus ◽  
Farm Yard Manure ◽  
Available Nitrogen ◽  
Nitrogen Levels

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.

PRODUKTIVITAS GANDUM (Triticum aestivum L.) DAN CAISIM (Brassica rapa L.) PADA SISTEM TUMPANGSARI

Jurnal BiBieT ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Reni Elmiati ◽  
Zulfadly Syarif ◽  
Auzar Syarif
Keyword(s):  
Triticum Aestivum ◽  
Brassica Rapa ◽  
Block Design ◽  
Cropping System ◽  
Triticum Aestivum L ◽  
Growth And Yield ◽  
Wheat Crop ◽  
Single Experiment ◽  
Equivalent Ratio ◽  
Seed Spacing

<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>

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