scholarly journals Interactions between leaf macronutrients, micronutrients and soil properties in pistachio (Pistacia vera L.) orchards

2013 ◽  
Vol 72 (2) ◽  
pp. 295-310 ◽  
Author(s):  
Prodromos Koukoulakis ◽  
Christos Chatzissavvidis ◽  
Aristotelis Papadopoulos ◽  
Dimitrios Pontikis
Keyword(s):  
Dry Matter ◽  
Chemical Properties ◽  
Nutrient Status ◽  
Soil Chemical Properties ◽  
Leaf Analysis ◽  
Promote Plant Growth ◽  
Macro And Micronutrients ◽  
Almost All ◽  
Plant Available P ◽  
Pistachio Trees

Abstract - The interactions between: (i) leaf dry matter macronutrietns, micronutrients and soil chemical properties, (ii) leaf macro- and micronutrients, (iii) soil macro- and micronutrients and (iv) soil chemical properties, and soil micro- and macronutrients in 50 pistachio orchards were investigated in leaves and soils by means of regression analysis. Most of the soils were deficient in plant-available P, Zn, Mn, Fe, and B, while they were excessively supplied with Cu. Leaf analysis showed that most of the trees were sufficient in K, Mg, Mn and B, but deficient in N, P and Fe, and excessive in Zn and Cu. It was found that almost all the significant elemental interactions occurring in pistachio leaves or soils were synergistic, contributing considerable quantities of available nutrients and, therefore, improving the nutrient status of pistachio trees, and the level of soil fertility. On the other hand, the interactions between K and Mg in leaves, and between soil pH and leaf N or soil Fe, Mn and B, were antagonistic. It is suggested that these results must be taken into account during fertilization of pistachio trees, in order to avoid nutritional disorders and to promote plant growth, productivity and nut quality.

scholarly journals USE OF SCALED SEMIVARIOGRAMS IN THE PLANNING SAMPLE OF SOIL CHEMICAL PROPERTIES IN SOUTHERN AMAZONAS, BRAZIL

2015 ◽  
Vol 39 (1) ◽  
pp. 31-39 ◽  
Author(s):  
Ivanildo Amorim de Oliveira ◽  
Milton César Costa Campos ◽  
José Marques Junior ◽  
Renato Eleotério de Aquino ◽  
Daniel de Bortoli Teixeira ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Spherical Model ◽  
Exponential Model ◽  
Soil Samples ◽  
Soil Chemical Properties ◽  
Sampling Density ◽  
Sugarcane Crop ◽  
Lack Of Information ◽  
Set Up ◽  
Almost All

The lack of information concerning the variability of soil properties has been a major concern of researchers in the Amazon region. Thus, the aim of this study was to evaluate the spatial variability of soil chemical properties and determine minimal sampling density to characterize the variability of these properties in five environments located in the south of the State of Amazonas, Brazil. The five environments were archaeological dark earth (ADE), forest, pasture land, agroforestry operation, and sugarcane crop. Regular 70 × 70 m mesh grids were set up in these areas, with 64 sample points spaced at 10 m distance. Soil samples were collected at the 0.0-0.1 m depth. The chemical properties of pH in water, OM, P, K, Ca, Mg, H+Al, SB, CEC, and V were determined at these points. Data were analyzed by descriptive and geostatistical analyses. A large part of the data analyzed showed spatial dependence. Chemical properties were best fitted to the spherical model in almost all the environments evaluated, except for the sugarcane field with a better fit to the exponential model. ADE and sugarcane areas had greater heterogeneity of soil chemical properties, showing a greater range and higher sampling density; however, forest and agroforestry areas had less variability of chemical properties.

Factors associated with biological nitrogen fixation in dairy pastures in south-western Victoria

1999 ◽  
Vol 50 (2) ◽  
pp. 261 ◽  
Author(s):  
Penny A. Riffkin ◽  
Paul E. Quigley ◽  
Gavin A. Kearney ◽  
Fiona J. Cameron ◽  
Robert R. Gault ◽  
...  
Keyword(s):  
White Clover ◽  
Soil Texture ◽  
Dry Matter ◽  
Chemical Properties ◽  
Soil Chemical Properties ◽  
Available Phosphorus ◽  
N Fixation ◽  
Nematode Density ◽  
Factors Associated ◽  
Western Victoria

A survey of 71 sites was conducted in the dairying districts of south-western Victoria in October 1994 to determine factors associated with nitrogen (N) fixation in white clover based pastures. Twenty-eight factors (environmental, microbiological, management, soil, and pasture) were considered in relation to 2 indicators of N fixation by white clover, %Ndfa (percentage of total plant N derived from the atmosphere, as determined by the 15N natural abundance method) and kg of N fixed per tonne herbage dry matter (legume and non-legume). On light-textured soils (sandy loams), soil potassium, rhizobia numbers, total soil N, and density of the nematode Pratylenchus sp. accounted for 72% of variation in %Ndfa. On medium-textured soils (clay loams), crude protein of perennial ryegrass and plant-available phosphorus in the soil accounted for 30% of variation in %Ndfa. The amount of N fixed was influenced by different factors, again depending on soil texture. Soil chemical properties accounted for 31% variation on the medium-textured soils with nematode density, pasture quality, and soil chemical properties accounting for 77% of variation on light-textured soils. Amounts of N fixed per tonne herbage dry matter produced averaged 8.2 kg on the light-textured soils and 7.3 kg on the medium-textured soils. Average %Ndfa values were 67% and 60% on light- and medium-textured soils, respectively. Effects of soil texture on N fixation were attributed to the different cation exchange and water-holding capacities of the soils and highlight the importance of considering soil type in N fixation studies.

scholarly journals Liming influence on soil chemical properties, nutritional status and yield of alfalfa grown in acid soil

2010 ◽  
Vol 34 (4) ◽  
pp. 1231-1239 ◽  
Author(s):  
Adônis Moreira ◽  
Nand Kumar Fageria
Keyword(s):  
Dry Matter ◽  
Soil Acidity ◽  
Nutritive Value ◽  
Plant Traits ◽  
Acid Soil ◽  
Chemical Properties ◽  
Acid Soils ◽  
Base Saturation ◽  
Soil Chemical Properties ◽  
Coefficient Of Determination

Alfalfa is an important forage crop with high nutritive value, although highly susceptible to soil acidity. Liming is one of the most efficient and prevailing practices to correct soil acidity and improve alfalfa yield. The objective of this study was to evaluate response to liming of alfalfa grown in a greenhouse on a Typic Quartzipsamment soil. The treatments consisted of four lime rates (0, 3.8, 6.6 and 10.3 Mg ha-1) and two cuts. Alfalfa dry matter increased quadratically with increasing lime rates. In general, dry matter yield was maximized by a lime rate of 8.0 Mg ha-1. Except for the control, the dry matter nutrient contents in the treatments were adequate. The positive linear correlation between root and nodule dry matter with lime rates indicated improvement of these plant traits with decreasing soil acidity. The soil acidity indices pH, base saturation, Ca2+ concentration, Mg2+ concentration, and H + Al were relevant factors in the assessment of alfalfa yield. The magnitude of influence of these soil acidity indices on yield as determined by the coefficient of determination (R²) varied and decreased in the order: base saturation, H + Al, pH, Ca and Mg concentrations. Optimum values of selected soil chemical properties were defined for maximum shoot dry matter; these values can serve as a guideline for alfalfa liming to improve the yield of this forage on acid soils.

Effect of digested slurry on the dry matter production and arbuscular mycorrhizal colonization of two genotypes of Zoysia grass

2017 ◽  
Vol 155 (10) ◽  
pp. 1565-1576
Author(s):  
M. TOBISA ◽  
Y. UCHIDA ◽  
S. IWASA ◽  
T. TSUKIYAMA ◽  
Y. ASANO ◽  
...  
Keyword(s):  
Dry Matter ◽  
Inorganic Nitrogen ◽  
Chemical Properties ◽  
Mineral Fertilizer ◽  
Arbuscular Mycorrhizal ◽  
Am Fungi ◽  
Soil Chemical Properties ◽  
Phosphorus Concentration ◽  
Available Phosphorus ◽  
Continuous Application

SUMMARYThe present study investigated the dry matter yield (DMY) and arbuscular mycorrhizal (AM) colonization (internal hyphae, arbuscules, and vesicles) of two genotypes of zoysia grass (Zoysia japonica strain Aso and cv. Asagake) at three rates (10, 20 and 40 g N/m2/year) of application of digested slurry (DS) or mineral fertilizer. Soil chemical properties (available phosphorus concentration, pH and electrical conductivity (EC)) were also measured as factors associated with AM colonization. The fertilizer type (DS v. mineral fertilizer) had an effect on DMY depending on the plant genotypes but had little or no effect on AM colonization, and soil chemical properties, indicating that DS can be used as a substitute for mineral fertilizer; however, it is necessary to apply it taking into account the ratio of inorganic nitrogen (N). However, heavy DS application decreased colonization by internal hyphae. Furthermore, even at the lowest rate, the continuous application of DS decreased colonization by arbuscules and vesicles in both genotypes, which were associated with decreasing soil pH and increasing EC. The results suggest that zoysia grass should be fertilized with DS at a rate of <10 g N/m2/year in order to achieve a continuous association with AM fungi, although this range of N application is sub-optimal for zoysia grass production.

Soil and leaf nutritional constraints in major pomegranate growing states of India

2016 ◽  
Vol 35 (1) ◽  
Author(s):  
R. A. Marathe ◽  
K. Dhinesh Babu ◽  
Y. R. Shinde
Keyword(s):  
Andhra Pradesh ◽  
Soil Health ◽  
Zinc Content ◽  
Nutrient Status ◽  
Leaf Analysis ◽  
Cu Content ◽  
Physico Chemical ◽  
Fe Content ◽  
Limiting Nutrient ◽  
Almost All

Pomegranate orchards grown under hot, semi-arid to arid tropical climate were surveyed to diagnose nutrient constraints through soil and leaf analysis. A total 347 pomegranate orchards covering an area about 60,000 ha were surveyed in major pomegranate growing areas of Maharashtra, Karnataka and Andhra Pradesh states during 2007 to 2013. Physico-chemical analysis of the soil samples revealed that most of the pomegranate cultivation is on shallow and light textured soils having pH (< 8.9), EC (< 1.86dS/m) and CaCO<sub>3</sub> (< 10% in majority orchards) which is within tolerable limit for pomegranate cultivation. Soil as well as leaf nutrient status indicated that P was the most limiting nutrient, followed by N while K and Ca was in sufficient quantity. Micronutrient constraints through foliar analysis revealed that Fe content was in sufficiency range in almost all the orchards despite its low availability in the soils. Similarly, leaf Cu content was very low in majority orchards despite its availability in the soil in excess range. Zinc content in the leaves was in sufficient quantity in all the orchards located in all the states. The nutrients should be applied in a balance ratio ensuring periodical application of organics to maintain soil health.

scholarly journals Improving Lowland Rice (O. sativaL. cv. MR219) Plant Growth Variables, Nutrients Uptake, and Nutrients Recovery Using Crude Humic Substances

2015 ◽  
Vol 2015 ◽  
pp. 1-14 ◽  
Author(s):  
Perumal Palanivell ◽  
Osumanu Haruna Ahmed ◽  
Nik Muhamad Ab Majid ◽  
Mohamadu Boyie Jalloh ◽  
Kasim Susilawati
Keyword(s):  
Plant Growth ◽  
Humic Substances ◽  
Rice Plant ◽  
Dry Matter ◽  
Ammonia Volatilization ◽  
Chemical Properties ◽  
Lowland Rice ◽  
Soil Chemical Properties ◽  
Nutrients Uptake ◽  
Nutrients Recovery

High cation exchange capacity and organic matter content of crude humic substances from compost could be exploited to reduce ammonia loss from urea and to as well improve rice growth and soil chemical properties for efficient nutrients utilization in lowland rice cultivation. Close-dynamic air flow system was used to determine the effects of crude humic substances on ammonia volatilization. A pot experiment was conducted to determine the effects of crude humic substances on rice plant growth, nutrients uptake, nutrients recovery, and soil chemical properties using an acid soil mixed with three rates of crude humic substances (20, 40, and 60 g pot−1). Standard procedures were used to evaluate rice plant dry matter production, nutrients uptake, nutrients recovery, and soil chemical properties. Application of crude humic substances increased ammonia volatilization. However, the lowest rate of crude humic substances (20 g pot−1) significantly improved total dry matter, nutrients uptake, nutrients recovery, and soil nutrients availability compared with crude humic substances (40 and 60 g pot−1) and the normal fertilization. Apart from improving growth of rice plants, crude humic substances can be used to ameliorate acid soils in rice cultivation. The findings of this study are being validated in our ongoing field trials.

scholarly journals Biosolids Application on Banana Production: Soil Chemical Properties and Plant Nutrition

2011 ◽  
Vol 2011 ◽  
pp. 1-8 ◽  
Author(s):  
Luiz Antonio Junqueira Teixeira ◽  
Ronaldo Severiano Berton ◽  
Aline Reneé Coscione ◽  
Luis Alberto Saes
Keyword(s):  
Soil Analysis ◽  
Chemical Properties ◽  
Soil Chemical Properties ◽  
Mineral Fertilization ◽  
Mineral N ◽  
Banana Production ◽  
Leaf Analysis ◽  
P Fertilizer ◽  
K Concentration ◽  
Biosolids Application

Biosolids are relatively rich in N, P, and S and could be used to substitute mineral fertilization for banana crop. A field experiment was carried out in a Yellow Oxisol to investigate the effects of biosolids application on soil chemical properties and on banana leaf's nutrient concentration during the first cropping cycle. Soil analysis (pH, organic matter, resin P, exchangeable Ca and K, available B, DTPA-extracted micronutrients, and heavy metals) and index-leaf analysis (B, Cu, Fe, Mn, Zn, Cd, Cr, Ni, and Pb) were evaluated. Biosolids can completely substitute mineral N and P fertilizer to banana growth. Soil exchangeable K and leaf-K concentration must be monitored in order to avoid K deficiency in banana plants. No risk of heavy metal (Cr, Ni, Pb, and Cd) concentration increase in the index leaf was observed when biosolids were applied at the recommended N rate.

Sign in / Sign up

Export Citation Format

Share Document