Willow colonization of Rocky Mountain mires

1995 ◽  
Vol 25 (2) ◽  
pp. 215-222 ◽  
Author(s):  
Tom R. Cottrell
Keyword(s):  
Root Biomass ◽  
Peat Soil ◽  
Rocky Mountain ◽  
Dry Weight ◽  
Shoot Biomass ◽  
Stem Cuttings ◽  
Peat Soils ◽  
Asexual Propagation ◽  
Extensive Field ◽  
Sexual Propagation

Salixplanifolia Pursh ssp. planifolia and Salixmonticola Bebb are the dominant willow species of Colorado Rocky Mountain willow carrs. Extensive field observations suggest that neither of these species is capable of sexual propagation under continuous sedge cover on peat soils. Growth experiments using willow stem cuttings in pots of saturated peat soil indicate that S. planifolia produces more root biomass (p = 0.0031) and shoot biomass (p = 0.0001) than S. monticola during one summer of growth. Male 5. planifolia and female S. monticola produce more dry-weight root (p = 0.0390) and shoot (p = 0.0442) biomass than their conspecific opposite sex. A species by sex by elevation interaction is significant for root biomass (p = 0.0360). The results are suggestive that these taxa have different regeneration niches. Asexual propagation driven by beaver activity is suggested as an explanation for the dominance of s. planifolia in mires and how this species colonizes vegetated peat soils. Beaver cut and store willow stems for a winter food source. This activity provides willow fragments for asexual colonization of mires.

scholarly journals Kajian Pertumbuhan Dan Biomassa Perakaran Stek Pucuk Stevia Akibat Pupuk Kandang Di Tanah Gambut Kota Palangka Raya

2016 ◽  
Vol 15 (2) ◽  
pp. 151-160
Author(s):  
Djoko Eko Hadi Susilo
Keyword(s):  
Root Length ◽  
Root Biomass ◽  
Peat Soil ◽  
Peat Soils ◽  
Know How ◽  
Food And Beverage ◽  
Chicken Feces

The cultivation of Stevia in peat soil has ever done. In the present, to cultivate Stevia in peat soils is necessary to get the substitution of sugar needs and as an alternative natural sweetener for food and beverage. The aim of this study is to know how far the influence of the using of stable fertilizer to the capability of the growth and biomass of the root on the cutting of the Stevia shoots in the peat soil city of Palangka Raya. The stable fertilizer that was used in this study is chicken feces. The results of this study are expected as a material of the study to support the development of cultivation of Stevia in the peat soil. This study was conducted using a polybag on Wortel street, Panarung of the District of Pahandut of the Palangkaraya city from February to April 2016. The data of the observation were collected to the growth of the longest root length (cm) and root biomass (g) of Stevia plants at the age of 10, 20, 30, and 40 HST. The results of the study showed that the using of chicken feces as the stable fertilizer to the Stevia plant has affected to the growth of the longest root length and root biomass of Stevia plant at the age of 10, 20, 30 and 40 days after planting. The result of this study also requires a further detailed study on the growth of the number, diameter, and surface of the roots area.

scholarly journals PENGARUH KOTORAN AYAM DAN MIKORIZA Glomus aggregatum TERHADAP PERTUMBUHAN KEDELAI (Glycine max) PADA TANAH GAMBUT

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Muhamad Iqbal ◽  
Riza Linda ◽  
Mukarlina Mukarlina
Keyword(s):  
Peat Soil ◽  
Dry Weight ◽  
Chicken Manure ◽  
Nutrient Level ◽  
Glomus Aggregatum ◽  
Peat Soils ◽  
West Kalimantan ◽  
Randomized Design ◽  
Wet Weight ◽  
Completely Randomized Design

Peat soil in West Kalimantan has been contained low of nutrient level so it affects the growth of soybeans. One effort to increase the availability of nutrients in peat soils is by using mycorrhiza and chicken manure fertilizer. This research aims to determine the growth of soybeans by administering chicken manure and mycorrhiza on peat soils. The research was conducted from January to April 2019. The research design used was a Completely Randomized Design Factorial consisting of 2 factors with 4 replications. The first factor is mycorrhiza fungi: M1 (0 gr/polybag), M2 (5 gr/polybag), M3 (10 gr/polybag), M4 (15 gr/polybag) and the second factor is chicken manure fertilizer: P1 (0 tons/ha) , P2 (5 tons/ha), P3 (10 tons/ha), P4 (15 tons/ha). The results showed that the single chicken manure application significantly affected all observed parameters with 15 tons/ha chicken manure fertilizer. Mycorrhiza fungi just a significantly effect on fresh weight and dry weight. Also, the combination of mycorrhiza fungi and chicken manure fertilizer just a significantly affected wet weight and dry weight with combination 5 g mycorrhiza and 5 tons/ha of chicken manure fertilizer.

scholarly journals ANALISIS PERBANDINGAN PENURUNAN FONDASI DANGKAL DI TANAH GAMBUT DENGAN STABILISASI KAPUR DAN ABU SEKAM PADI

2021 ◽  
Vol 4 (1) ◽  
pp. 233
Author(s):  
Aviva Stevani ◽  
Chaidir Anwar Makarim
Keyword(s):  
Residential Buildings ◽  
Peat Soil ◽  
Dry Weight ◽  
Shallow Foundations ◽  
Shallow Foundation ◽  
Peat Soils ◽  
Untreated Soil ◽  
Total Settlement ◽  
Husk Rice ◽  
Housing Needs

The increase in housing needs is in line with the increase in the population. Residential buildings in Indonesia are only about 1-2 floors, which require shallow foundations to support. Land is one of the important aspects, where it supports the entire building that stands on it. One of the development constraints encountered in Kalimantan is the peat soil. The construction on peatland will cause problems such as low bearing capacity and large deformation, therefore it needs improvement before use. This study aims to find out the overview of shallow foundation settlement  with a size of 2 m x 2 m with a depth of 1 m in untreated soils with a thickness of 6 m and in stabilized peat soils. Stabilization used by 10% of the dry weight of the soil with a content of 30% lime + 70% ash husk rice. Calculation of the settlement in stabilized peat soil, there’re 5 variations of stabilization thickness ranging from 2 m – 6m. Within 30 years, the total settlement of untreated peat soil by 1,25828 m, as well as for stabilizing peat soils with a thickness of 2 m - 6 m experienced a total settlement of 0,534587 m to 0,379714 m. Peningkatan kebutuhan rumah tinggal selaras dengan peningkatan jumlah penduduk. Pada umumnya bangunan rumah tinggal di Indonesia hanya berkisar 1- 2 lantai, dimana membutuhkan fondasi dangkal untuk menopang beban. Tanah merupakan salah satu aspek penting, dimana tanah menopang seluruh bangunan yang berdiri diatasnya. Salah satu kendala pembangunan yang ditemui di Kalimantan adalah lapisan tanah gambut. Pembangunan bangunan diatas tanah gambut akan menimbulkan masalah seperti daya dukung yang rendah serta penurunan yang besar, maka dari itu perlu perbaikan sebelum digunakan. Penelitian kali ini bertujuan untuk mengetahui sebuah gambaran mengenai penurunan fondasi dangkal dengan ukuran 2 m x 2 m dengan kedalaman 1 m pada tanah gambut asli  (untreated soil) dengan ketebalan 6 m serta pada tanah gambut yang telah distabilisasi. Stabilisasi yang digunakan sebesar 10% dari berat kering tanah dengan kadar 30% kapur + 70% abu sekam padi. Perhitungan penurunan pada tanah gambut yang telah distabilisasi, ada 5 variasi ketebalan stabilisasi mulai dari 2 m – 6m. Dalam jangka waktu 30 tahun, penurunan total tanah gambut asli sebesar 1,25828 m, serta untuk tanah gambut stabilisasi dengan ketebalan 2 m – 6 m mengalami penurunan total sebesar 0,534587 m sampai 0,379714 m. 

scholarly journals Pertumbuhan dan Produksi Tanaman Padi Varietas Inpara-3 pada Tanah Tergenang yang Diberikan Abu Batubara

2020 ◽  
Vol 10 (1) ◽  
pp. 1-8
Author(s):  
Muhammad Helmy Abdillah ◽  
Akhmad Rizalli Saidy ◽  
Raihani Wahdah
Keyword(s):  
Fly Ash ◽  
Peat Soil ◽  
Dry Weight ◽  
Production Performance ◽  
Peat Soils ◽  
Coal Fuel ◽  
Randomized Design ◽  
Height Increase ◽  
Paddy Cultivation ◽  
Positive Results

       Paddy cultivation in South Kalimantan is a priority activity undertaken by various parties to create national food security and make Indonesia a world food barn in 2045. Increasing paddy production can always be supported by various supports, marginal swamp investment with various limiting soil fertility and strive for it to be planted with superior paddy varieties. The purpose of this study is to try to utilize ameliorant from coal fuel (fly ash) added to from three soil typology as swampy wetlands, tidal lands, and peat soils to improve the performance and growth of paddy varieties in Inhibrida Padi Rawa 3 (INPARA-3). This study uses a Completely Randomized Design in models nested factorial, using the application of fly ash given to each typology of the soil obtained. This research was conducted at the Greenhouse Faculty of Agriculture, Lambung Mangkurat University, Banjarbaru, South Kalimantan. Giving fly ash in each type of soil is carried out by its bulk density. Fly ash given is 60 t.ha-1which is converted to 309.36 grams in each polybag of soil for soils from swampy land, 374.52 grams in each polybag soil for soil from tidal swamps and 519.56 grams in each polybag peat soil.  From the analysis of the growth and production performance of paddy, planted on peat soils given fly ash, showed positive results on all parameters discussed, but different from the performance and growth of paddy that was planted on the ground from the soil, tides are given fly ash, only showed positive results on plant parameters height, height increase, number of tillers, grain dry weight, and longest roots of paddy. Analysis of growth and production performance was also carried out on paddy in the soil from swampy land, it appeared positive only on the parameters of grain dry weight, plant dry weight (without roots, panicles, and grain).

scholarly journals Growth and P absorption of Fibraurea tinctoria lour in peat soil with an amendment

2021 ◽  
Vol 905 (1) ◽  
pp. 012099
Author(s):  
A T Sakya ◽  
Sulandjari ◽  
W S Dewi
Keyword(s):  
Peat Soil ◽  
Dry Weight ◽  
Wild Plant ◽  
Peat Soils ◽  
Root Volume ◽  
Combination Treatments ◽  
Randomized Design ◽  
Npk Fertilizer ◽  
Completely Randomized Design ◽  
P Absorption

Abstract One of the ways to maintain and increase immunity during the COVID-19 pandemic is by consuming the medicinal plant. Indonesia has many medicinal plants, one of which is ‘akar kuning’ (Fibraurea tinctoria Lour). F. tinctoria is a wild plant commonly found in Kalimantan and has not been widely cultivated. Therefore, efforts to develop need to be made, especially in peat soil. An approach to addressing the problem in peat soils is adding zeolite amendments and NPK fertilizer to increase growth. Therefore, preliminary research was conducted to determine the growth and P absorption of F tinctoria in peat soil. The study used Zeolite (0 and 2.5 g polybag−1) and NPK fertilizer with three levels (3, 6, 9 g plant−1). The combination treatments were arranged factorially on a completely randomized design. The study shows different responses to the leaf number, root volume, and root dry weight. Tendril length and P absorption increased along with the increase of Zeolite and NPK application.

Modes of agricultural use, productivity and fertility of developed lowland peat soils

2020 ◽  
Author(s):  
Aleksandr Glubokovskih
Keyword(s):  
Crop Rotation ◽  
Peat Soil ◽  
Perennial Grasses ◽  
Peat Soils ◽  
Fodder Crop ◽  
Agrochemical Properties ◽  
Agricultural Use ◽  
Fodder Crop Rotation

The results of many years of research on the cultivation of crops in fodder crop rotation on dried peat soil are presented. A productive and agroecological assessment of crop rotation with various saturation with perennial grasses is given. The data on the reduction of peat reserves and changes in the agrochemical properties of the soil are presented.

Productivity of the forage of perennial grasses and their mixtures on drained peatlands

2016 ◽  
Vol 2 (91) ◽  
pp. 74-79
Author(s):  
V.H. Kurhak ◽  
M.I. Shtakal ◽  
V.M. Shtakal
Keyword(s):  
Dactylis Glomerata ◽  
Dry Weight ◽  
Phleum Pratense ◽  
Bromus Inermis ◽  
Metabolizable Energy ◽  
Perennial Grasses ◽  
Forest Steppe ◽  
Left Bank ◽  
Peat Soils ◽  
High Productivity

There showed the productivity, chemical composition of feed and the timing of mowing of grass and variety mixes of permanent grasses on drained peat soils of Left Bank Forest-Steppe of Ukraine. The presence of early rip­ ened seeded grass provides a uniform supply use mowed mass from middle May until the end of September and the productivity of lands, which ranges from 10 to 14 t/ha of dry weight, metabolizable energy – 100.0 – 130.0 GJ and feed units 7-11 t/ha. Additional manuring of N90 on the background Р45К120 is effective at the start of second year of use. On the organization of hay conveyors of different ripening time herbages is possible to extend the optimal tim­ ing of mowing of green mass to 25-35 days. Best among the early-maturing grass crops are Dactylis glomerata va­ riety Kyivska rannia-1 with Alopecurus pratensis variety Sarnenskiy ranniy or its mixture with Bromus inermis and Festuca pratensis. With medium ripening – pure sowing eastern fescue of variety Lyudmila, Phalaris arundinacea variety Sarnenski-40, Bromus inermis variety Arsen and their compounds. High productivity of late-ripening herb­ age is provided by the inclusion in the composition of grass mixtures of Phleum pratense L. variety Vyshgorodska and Dactylis glomerata of variety Ukrainka, and Agrostis gigantea Roth variety Sarnenska piznia. It is also possible organization hay conveyors of different ripening varieties of Dactylis glomerata varieties Kyivska rannia, Muravka, Ukrainka.

scholarly journals Growth Responses of Boreal Scots Pine, Norway Spruce and Silver Birch Seedlings to Simulated Climate Warming over Three Growing Seasons in a Controlled Field Experiment

Forests ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 943
Author(s):  
Katri Nissinen ◽  
Virpi Virjamo ◽  
Antti Kilpeläinen ◽  
Veli-Pekka Ikonen ◽  
Laura Pikkarainen ◽  
...  
Keyword(s):  
Norway Spruce ◽  
Scots Pine ◽  
Root Biomass ◽  
Growing Season ◽  
Silver Birch ◽  
Shoot Biomass ◽  
Growth Responses ◽  
Growing Seasons ◽  
Simulated Climate ◽  
Shoot And Root Biomass

We studied the growth responses of boreal Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies L. Karst.) and silver birch (Betula pendula Roth) seedlings to simulated climate warming of an average of 1.3 °C over the growing season in a controlled field experiment in central Finland. We had six replicate plots for elevated and ambient temperature for each tree species. The warming treatment lasted for the conifers for three growing seasons and for the birch two growing seasons. We measured the height and diameter growth of all the seedlings weekly during the growing season. The shoot and root biomass and their ratios were measured annually in one-third of seedlings harvested from each plot in autumn. After two growing seasons, the height, diameter and shoot biomass were 45%, 19% and 41% larger in silver birch seedlings under the warming treatment, but the root biomass was clearly less affected. After three growing seasons, the height, diameter, shoot and root biomass were under a warming treatment 39, 47, 189 and 113% greater in Scots pine, but the root:shoot ratio 29% lower, respectively. The corresponding responses of Norway spruce to warming were clearly smaller (e.g., shoot biomass 46% higher under a warming treatment). As a comparison, the relative response of height growth in silver birch was after two growing seasons equal to that measured in Scots pine after three growing seasons. Based on our findings, especially silver birch seedlings, but also Scots pine seedlings benefitted from warming, which should be taken into account in forest regeneration in the future.

scholarly journals Nitrous Oxide Emissions in Pineapple Cultivation on a Tropical Peat Soil

2021 ◽  
Vol 13 (9) ◽  
pp. 4928
Author(s):  
Alicia Vanessa Jeffary ◽  
Osumanu Haruna Ahmed ◽  
Roland Kueh Jui Heng ◽  
Liza Nuriati Lim Kim Choo ◽  
Latifah Omar ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Soil Temperature ◽  
Peat Soil ◽  
Farming Systems ◽  
N2o Emission ◽  
Nitrous Oxide Emissions ◽  
Natural State ◽  
N2o Emissions ◽  
Wet Season ◽  
Peat Soils

Farming systems on peat soils are novel, considering the complexities of these organic soil. Since peat soils effectively capture greenhouse gases in their natural state, cultivating peat soils with annual or perennial crops such as pineapples necessitates the monitoring of nitrous oxide (N2O) emissions, especially from cultivated peat lands, due to a lack of data on N2O emissions. An on-farm experiment was carried out to determine the movement of N2O in pineapple production on peat soil. Additionally, the experiment was carried out to determine if the peat soil temperature and the N2O emissions were related. The chamber method was used to capture the N2O fluxes daily (for dry and wet seasons) after which gas chromatography was used to determine N2O followed by expressing the emission of this gas in t ha−1 yr−1. The movement of N2O horizontally (832 t N2O ha−1 yr−1) during the dry period was higher than in the wet period (599 t N2O ha−1 yr−1) because of C and N substrate in the peat soil, in addition to the fertilizer used in fertilizing the pineapple plants. The vertical movement of N2O (44 t N2O ha−1 yr−1) was higher in the dry season relative to N2O emission (38 t N2O ha−1 yr−1) during the wet season because of nitrification and denitrification of N fertilizer. The peat soil temperature did not affect the direction (horizontal and vertical) of the N2O emission, suggesting that these factors are not related. Therefore, it can be concluded that N2O movement in peat soils under pineapple cultivation on peat lands occurs horizontally and vertically, regardless of season, and there is a need to ensure minimum tilling of the cultivated peat soils to prevent them from being an N2O source instead of an N2O sink.

scholarly journals Testing the potential of LEDs to enhance growth and quality characteristics of Salvia fruticosa

2019 ◽  
Vol 46 (No. 2) ◽  
pp. 98-106 ◽  
Author(s):  
Filippos Bantis ◽  
Kalliopi Radoglou
Keyword(s):  
Root Biomass ◽  
Weight Ratio ◽  
Dry Weight ◽  
Total Phenolic ◽  
Root Weight ◽  
Light Emitting ◽  
Shoot Dry Weight ◽  
Radiation Spectra ◽  
Salvia Fruticosa ◽  
Developmental Characteristics

The effect of light-emitting diodes (LED) with broad radiation spectra on developmental, physiological, and phytochemical characteristics of Greek sage (Salvia fruticosa L.) seedlings was assessed. Fluorescent (FL – control) tubes and four LED lights [AP67 (moderate blue, red and far-red), L20AP67 (moderate blue, red and far-red, high green), AP673L (moderate blue, high red) and NS1 (high blue and green, low red, high red : far-red, 1% ultraviolet)] were used in a growth chamber. Seedlings grown under FL, L20AP67 and AP673L exhibited the best morphological and developmental characteristics. FL led to inferior root biomass formation compared to all LEDs. AP67 promoted greater root-to-shoot dry weight ratio and dry-to-fresh overground and root weight ratios, but induced the least morphological and developmental characteristics. NS1 performed well regarding the root biomass production. Total phenolic content and the root growth capacity were not significantly affected. The present study demonstrates that L20AP67 and AP673L LEDs performed equally to FL light regarding the developmental characteristics. AP67 and NS1 may have the potential to be used for compact seedling production.

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