Effet du chaulage sur la croissance de l'épinette blanche plantée à Grand'Mère

1979 ◽  
Vol 9 (3) ◽  
pp. 305-310 ◽  
Author(s):  
Truong Dinh Phu
Keyword(s):  
Beneficial Effect ◽  
Soil Ph ◽  
Soil Amendments ◽  
Residual Effect ◽  
Basal Area ◽  
Nutrient Status ◽  
White Spruce ◽  
Hydrated Lime ◽  
Mineral Elements ◽  
Exchangeable Ca

The effect of liming alone or in combination with N, K, and Mg on the growth of white spruce (Piceaglauca (Moench) Voss), on the nutrient status of needles of trees, as well as on the content of mineral elements in the soil, was studied. The study, carried out in 1972, indicated that the soil amendments applied in 1962 at Grand'Mère in a 36-year-old plantation at the rate of 336 kg hydrated lime, 115 kg N, and 93 kg K, with or without 22 kg Mg per hectare, gave significantly higher basal area increments than those in the controls. Without the inclusion of N and K, dolomite or hydrated lime alone or with Mg had no marked beneficial effect on the growth of white spruce 5 or 10 years after treatments. No appreciable residual effect on the nutrient status of needles could be established. However, the amendments had slightly increased the soil pH and the soil content of exchangeable Ca in the treated plots.

Nutrient–Growth Relationships in the Grand'Mère White Spruce Plantations before and after Fertilization

1975 ◽  
Vol 5 (4) ◽  
pp. 640-648 ◽  
Author(s):  
Truong Dinh Phu ◽  
J. Daniel Gagnon
Keyword(s):  
Partial Correlation ◽  
Negative Relationship ◽  
Residual Effect ◽  
Basal Area ◽  
White Spruce ◽  
Residual Effects ◽  
Main Element ◽  
Limited Growth ◽  
Before And After ◽  
Multiple Correlation Analysis

Relationships were studied between the concentrations of N, P, K, and Mg in the needles and the growth of planted white spruce (Piceaglauca (Moench) Voss) on sandy marine and associated soils at Grand'Mère, Quebec. Multiple correlation analysis indicated a positive and highly significant relationship between K concentrations and growth expressed in terms of basal area and total volume. Foliar N was positively and significantly correlated with basal area and Mg with total volume. There was a negative relationship between P concentrations and both basal area and total volume. However, the coefficients of partial correlation for N, Mg, and P were low.Significant increases in increments of basal area and total volume were obtained with 50 and 100 kg/ha K, 5 and 10 years after application. There was a moderate response in total basal area to rates of 57.5 and 115 kg/ha N in the first 5 years only. No growth response was obtained with 45 kg/ha Mg for either period of observation. K, N, and Mg were applied as K2SO4, urea, and MgSO4 respectively. No significant residual effects of N or K on foliar levels of N, K, and Mg could be established 10 years after treatment, although a marked and significant residual effect of Mg on foliar Mg concentrations could still be detected in the fertilized plots. Thus, K appeared to be the main element that limited growth of white spruce in these plantations.

The complexity of wood ash fertilization disentangled: Effects on soil pH, nutrient status, plant growth and cadmium accumulation

2021 ◽  
Vol 185 ◽  
pp. 104424
Author(s):  
Jesper Liengaard Johansen ◽  
Maiken Lundstad Nielsen ◽  
Mette Vestergård ◽  
Louise Hindborg Mortensen ◽  
Carla Cruz-Paredes ◽  
...  
Keyword(s):  
Plant Growth ◽  
Soil Ph ◽  
Nutrient Status ◽  
Cadmium Accumulation ◽  
Wood Ash

Root rot damage in naturally regenerated stands of spruce and balsam fir in Ontario

1989 ◽  
Vol 19 (3) ◽  
pp. 295-308 ◽  
Author(s):  
R. D. Whitney
Keyword(s):  
Root Rot ◽  
Black Spruce ◽  
Basal Area ◽  
Ground Level ◽  
White Spruce ◽  
Balsam Fir ◽  
Tree Age ◽  
Stand Age ◽  
Root Decay ◽  
Forest Region

In an 11-year study in northern Ontario, root rot damage was heaviest in balsam fir, intermediate in black spruce, and least in white spruce. As a result of root rot, 16, 11, and 6%, respectively, of dominant or codominant trees of the three species were killed or experienced premature windfall. Butt rot, which resulted from the upward extension of root rot into the boles of living trees, led to a scaled cull of 17, 12, and 10%, respectively, of gross merchantable volume of the remaining living trees in the three species. The total volume of wood lost to rot was, therefore, 33, 23, and 16%, respectively. Of 1108 living dominant and codominant balsam fir, 1243 black spruce, and 501 white spruce in 165 stands, 87, 68, and 63%, respectively, exhibited some degree of advanced root decay. Losses resulting from root rot increased with tree age. Significant amounts of root decay and stain (>30% of root volume) first occurred at 60 years of age in balsam fir and 80 years in black spruce and white spruce. For the three species together, the proportion of trees that were dead and windfallen as a result of root rot increased from an average of 3% at 41–50 years to 13% at 71–80 years and 26% at 101–110 years. The root rot index, based on the number of dead and windfallen trees and estimated loss of merchantable volume, also increased, from an average of 17 at 41–50 years to 40 at 71–80 years and 53 at 101–110 years. Death and windfall of balsam fir and black spruce were more common in northwestern Ontario than in northeastern Ontario. Damage to balsam fir was greater in the Great Lakes–St. Lawrence Forest region than in the Boreal Forest region. In all three tree species, the degree of root rot (decay and stain) was highly correlated with the number of dead and windfallen trees, stand age, and root decay at ground level (as a percentage of basal area) for a 10-tree sample.

scholarly journals Residual effect of sewage sludge fertilization on sunflower yield and nutrition

2015 ◽  
Vol 19 (10) ◽  
pp. 1005-1011 ◽  
Author(s):  
Hermann C. de Albuquerque ◽  
Geraldo R. Zuba Junio ◽  
Regynaldo A. Sampaio ◽  
Luiz A. Fernandes ◽  
Fabiano B. S. Prates ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Soil Ph ◽  
Cation Exchange Capacity ◽  
Block Design ◽  
Residual Effect ◽  
Exchange Capacity ◽  
Growth Characteristics ◽  
Randomized Block Design ◽  
Calcium And Magnesium ◽  
Potential Acidity

ABSTRACTThis study aimed to evaluate the residual effect of sewage sludge fertilization on yield and nutrition of sunflower in its second cycle. The experiment was carried out from April to August 2012. The treatments consisted of four doses of sewage sludge (0, 10, 20 and 30 t ha-1, dry basis) applied in the first cycle of sunflower, distributed in a randomized block design, with six replicates. Sunflower stem diameter, plant height, capitulum diameter and yield increased with the increment in sewage sludge doses, with maximum values observed with the dose of 30 t ha-1. The contents of calcium and magnesium in the soil, pH, sum of bases, effective and potential cation exchange capacity and base saturation increased, while potential acidity and the contents of manganese and iron in the leaves decreased, with the increment in the residual doses of sewage sludge. There was a reduction in yield and growth characteristics of sunflower in the second cycle; thus, additional fertilization with sewage sludge is recommended in each new cycle.

scholarly journals Effect of soil coarseness on soil base cations and available micronutrients in a semi-arid sandy grassland

Solid Earth ◽  
2016 ◽  
Vol 7 (2) ◽  
pp. 549-556 ◽  
Author(s):  
Linyou Lü ◽  
Ruzhen Wang ◽  
Heyong Liu ◽  
Jinfei Yin ◽  
Jiangtao Xiao ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Ph ◽  
Fine Particles ◽  
Base Cations ◽  
Main Process ◽  
Soil Base ◽  
Exchangeable Ca ◽  
Semi Arid ◽  
Sandy Grassland

Abstract. Soil coarseness is the main process decreasing soil organic matter and threatening the productivity of sandy grasslands. Previous studies demonstrated negative effect of soil coarseness on soil carbon storage, but less is known about how soil base cations (exchangeable Ca, Mg, K, and Na) and available micronutrients (available Fe, Mn, Cu, and Zn) response to soil coarseness. In a semi-arid grassland of Northern China, a field experiment was initiated in 2011 to mimic the effect of soil coarseness on soil base cations and available micronutrients by mixing soil with different mass proportions of sand: 0 % coarse elements (C0), 10 % (C10), 30 % (C30), 50 % (C50), and 70 % (C70). Soil coarseness significantly increased soil pH in three soil depths of 0–10, 10–20 and 20–40 cm with the highest pH values detected in C50 and C70 treatments. Soil fine particles (smaller than 0.25 mm) significantly decreased with the degree of soil coarseness. Exchangeable Ca and Mg concentrations significantly decreased with soil coarseness degree by up to 29.8 % (in C70) and 47.5 % (in C70), respectively, across three soil depths. Soil available Fe, Mn, and Cu significantly decreased with soil coarseness degree by 62.5, 45.4, and 44.4 %, respectively. As affected by soil coarseness, the increase of soil pH, decrease of soil fine particles (including clay), and decline in soil organic matter were the main driving factors for the decrease of exchangeable base cations (except K) and available micronutrients (except Zn) through soil profile. Developed under soil coarseness, the loss and redistribution of base cations and available micronutrients along soil depths might pose a threat to ecosystem productivity of this sandy grassland.

scholarly journals Stand basal area and temperature interact to influence growth in white spruce in southwest Alaska

Ecosphere ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. e02462 ◽  
Author(s):  
Micah Wright ◽  
Rosemary L. Sherriff ◽  
Amy E. Miller ◽  
Tammy Wilson
Keyword(s):  
Basal Area ◽  
White Spruce ◽  
Stand Basal Area

scholarly journals Determination of critical pH and Al concentration of acidic Ultisols for wheat and canola crops

2016 ◽  
Author(s):  
Abdulaha-Al Baquy ◽  
Jiu-Yu Li ◽  
Chen-Yang Xu ◽  
Khalid Mehmood ◽  
Ren-Kou Xu
Keyword(s):  
Soil Ph ◽  
Crop Production ◽  
Soil Acidity ◽  
Production Systems ◽  
Southern China ◽  
Chemical Properties ◽  
Dry Weight ◽  
Hydrated Lime ◽  
Dry Land

Abstract. Soil acidity has become a serious constraint in dry land crop production systems of acidic Ultisols in tropical and subtropical regions of southern China, where winter wheat and canola are cultivated as important rotational crops. Regardless of other common existing concerns in acidic Ultisols of southern China, it needs to be investigated whether soil acidity has any effect on wheat and canola growth. There is little information on the determination of critical soil pH as well as aluminium (Al) concentration for wheat and canola crops. The objective of this study was to determine the critical soil pH and exchangeable aluminium concentration (AlKCl) for wheat and canola production. Two pot cultures with two Ultisols from Hunan and Anhui were conducted for wheat and canola crops in a controlled growth chamber, with a completely randomized design. A soil pH gradient ranging from 3.7 (Hunan) and 3.97 (Anhui) to 6.5, with three replications, was used as a treatment. Aluminium sulfate (Al2(SO4)3) and hydrated lime (Ca(OH)2) were used to obtain the target soil pH levels. Plant height, shoot dry weight, root dry weight, and chlorophyll content (SPAD value) of wheat and canola were adversely affected by soil acidity in both locations. The critical soil pH and AlKCl of the Ultisol from Hunan for wheat were 5.29 and 0.56 cmol kg−1, respectively. At Anhui, the threshold soil pH and AlKCl for wheat were 4.66 and 2.36 cmol kg−1, respectively. On the other hand, the critical soil pH for canola was 5.65 and 4.87 for the Ultisols from Hunan and Anhui, respectively. The critical soil exchangeable Al for canola cannot be determined from the experiment of this study. The results suggested that the critical soil pH and AlKCl varied between different locations for the same variety of crop, due to the different soil types and their other soil chemical properties. The critical soil pH for canola was higher than that for wheat for both Ultisols, thus canola was more sensitive to soil acidity. Therefore, we recommend that liming should be undertaken to increase soil pH if it falls below these critical soil pH levels for wheat and canola production.

scholarly journals Nutrients Status in Arabica Coffee (Coffea Arabica L) Soils of Non-Traditional Area (NTA)

2021 ◽  
pp. 17-22
Author(s):  
S. A. Nadaf ◽  
A. R. Bora
Keyword(s):  
Organic Carbon ◽  
Soil Ph ◽  
Andhra Pradesh ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Eastern Ghats ◽  
Research Station ◽  
Arabica Coffee ◽  
Phosphorous Content ◽  
Traditional Area

Coffee growing areas in Andhra Pradesh and Orissa (non-traditional area - NTA) are characterized by undulating topography with terraced slopes having narrow valleys with scattered coffee farms across the elevation of the Eastern Ghats of Vishakhapatnam (Andhra Pradesh) and Koraput (Orissa) districts. Under this situation plant available nutrients will become non-available and the nutrients are stored in several pools as inorganic and organic forms in soil exchange complex are very much essential for coffee plants for its growth and development. Hence, a study was conducted to know the soil nutrient status of coffee growing region of NTA. A total of 693 surface soil samples were collected at depth of 22cm randomly from each coffee growing mandals of NTA and assessed the nutrient status (soil pH, OC, available P and K) at Regional Coffee Research Station, Narsipatnam. Results of the soil test results indicated that most of the Arabica coffee soils of NTA are acidic in reaction (72 %) and soil pH > 6.0 in these soils was 28 % in the tested soils. Plant available phosphorous (P) in the soil is low with 33 % soils and 46 % of the soils are medium in range. However, only 21 % of the soils tested are high in available phosphorous content in these soils. The majority of the soils of this region are high in available potassium about 54 % and 31 % of the soils are medium in range but only 15 % of the soils are low in available K status. Coffee soils of NTA are rich in organic carbon status and almost 47 %. 33 % of the tested soils are medium in range but 19 % of soils were low in organic carbon status. Soils are slightly acidic in reaction and were rich in organic carbon and available potassium status.

Lime loss rates from arable and grassland soils

1998 ◽  
Vol 131 (4) ◽  
pp. 455-464 ◽  
Author(s):  
B. J. CHAMBERS ◽  
T. W. D. GARWOOD
Keyword(s):  
Organic Matter ◽  
Soil Ph ◽  
Agricultural Land ◽  
Negative Relationship ◽  
Organic Matter Content ◽  
Matter Content ◽  
N Fertilizer ◽  
Exchangeable Ca ◽  
Water Ph ◽  
Loss Rates

Lime loss rates were determined for 11 agricultural soils across England (1987–92) under arable cropping (six sites) and grassland management (five sites), receiving commercial rates of fertilizer inputs. Lime additions in the range 0–1500 kg ha−1 CaCO3 (250 kg ha−1 CaCO3 increments) were made annually to the sites. Soil pH (water and 0·01 m CaCl2) and exchangeable calcium concentrations were measured annually. The annual lime loss rates were calculated as the amount of lime needed to maintain the initial site pH or exchangeable Ca concentrations.Lime loss rates based on soil water pH varied between 40 and 1270 kg ha−1 CaCO3, on the basis of CaCl2 pH between 0 and 1370 kg ha−1 CaCO3, and exchangeable Ca between 0 and 1540 kg ha−1 CaCO3. There was a positive relationship between the lime loss rate (based on water pH) and initial soil pH value (r=0·75; P<0·01), and a negative relationship with soil organic matter content (r=0·63; P<0·05) was based on soil pH, organic matter content and nitrogen (N) fertilizer input. Lime loss rates were approximately double those predicted by previous models developed in the 1970s, reflecting the greater quantities of inorganic N fertilizer now being applied to agricultural land.

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