scholarly journals ẢNH HƯỞNG CỦA PHÂN TRÙN QUẾ VÀ PHÂN BÓN LÁ ĐẾN MỘT SỐ TÍNH CHẤT ĐẤT VÀ NĂNG SUẤT GIỐNG LÚA OM18 TẠI TỈNH AN GIANG

2021 ◽  
Vol 5 ◽  
Author(s):  
Chương Nguyễn Văn ◽  
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Total Nitrogen ◽  
Field Experiments ◽  
Chemical Properties ◽  
The Other ◽  
Control Treatment ◽  
Foliar Fertilizer ◽  
Autumn Season ◽  
Properties Of Soil

The study on the effect of earthworm manure and HI-BORON 7-14 foliar fertilizer on chemical properties of soil and yield of rice OM18 was conducted in the Winter-Spring and Summer-Autumn seasons 2019-2020. The field experiments included four treatments and four replications in Long Xuyen City, An Giang province. Each treatment was the area of 48 m2 (8 m x 6 m). Treatments of season 1 (Winter-Spring) included: The control treatment (NT1) only applied NPK (85 kg N - 45 kg P2O5 - 45 kg K2O); (NT2): Incorporation of NPK and Hi-Boron 7-14 foliar fertilizer; (NT3): Incorporation of NPK and earthworm manure Atiga (300 kg ha-1); (NT4): Incorporation of NPK, earthworm manure Atiga (300kg ha-1) and Hi-Boron 7-14 foliar fertilizer. Treatments of season 2 (Summer-Autumn) were carried on the former experiment 1. However, treatments did not apply earthworm manure Atiga and spray Hi-Boron 7-14 foliar fertilizer (only applied 85 kg N-45 kgP2O5-45kg K2O). The results showed that the application of NPK, earthworm manure Atiga (300 kg ha-1) and Hi-Boron 7-14 foliar fertilizer improved organic matter, total nitrogen, available phosphorous and available potassium in soil. On the other hand, the combined fertilization increased the yield of rice OM 18 (11,3%) compared to the control treatment (without applying earthworm manure Atiga and spray Hi-Boron 7-14 foliar fertilizer). In Winter-Spring, the yield of rice OM18 in applying earthworm manure Atiga and spray Hi-Boron 7-14 foliar fertilizer had higher than 14,9% compared with applying only NPK in the Summer-Autumn season in the same treatment. The soil properties were not much improved due to no additional application of earthworm manure Atiga and spraying foliar fertilizer.

scholarly journals Changes in physico-chemical properties of paddy soil due to water and fertilizer management

2020 ◽  
Vol 5 (2) ◽  
pp. 65-71
Author(s):  
Israt Jahan ◽  
AKM Abul Ahsan ◽  
MMR Jahangir ◽  
Mahmud Hossain ◽  
Md Anwarul Abedin
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Bulk Density ◽  
Total Nitrogen ◽  
Soil Ph ◽  
Crop Production ◽  
Soil Health ◽  
Chemical Properties ◽  
Soil Samples ◽  
Physico Chemical

Soil physico-chemical properties are an important phenomenon for sustainable crop production and maintenance of optimum soil health. Hence, a laboratory measurement was conducted with soil samples of three years long experimental field of the Department of Soil Science, Bangladesh Agricultural University, Mymensingh to assess the changes in five selected soil physico-chemical properties viz. soil texture, bulk density, soil pH, total nitrogen and organic matter. The experiment was laid out in a split plot design with two water regimes (continuous flooding and alternate wetting & drying) in the main plots and five fertilizer treatments (N0 - control, N1- 140 kg N/ha as PU, N2- 104 kg N/ha as USG (2× 1.8 g/ 4 hills), N3 - 5 t CD + PU @ 140 kg N /ha on IPNS basis and N4- 5 t CD + USG (2× 1.8 g/ 4 hills @ 104 kg N/ha)) in the subplots under rice-rice cropping pattern with three replications. After three years, soil samples were collected at 0-5 and 5-10 cm soil depths for measuring bulk density and at 0-10 cm depth for other soil properties and analyzed. Results found that % sand, % silt, % clay, bulk density and soil pH was not changed significantly compared to initial status. Percentage of total nitrogen and organic matter was significantly affected by irrigation and fertilization. Total nitrogen (%) was higher in AWD whereas organic matter (%) was higher in CF practice. The highest total nitrogen (%) and organic matter (%) was found in N4 treatment in which USG was applied in combination with cowdung as organic manure. It can be suggested that N4 treatment was formed good combination for sustaining chemical properties of soil. Further long- term experimentation will be needed to know the changes in soil properties for sustainable crop production and improving soil health. Asian Australas. J. Biosci. Biotechnol. 2020, 5 (2), 65-71

THE EFFECT OF VARIOUS ORGANIC AMENDMENTS ON CERTAIN CHEMICAL PROPERTIES OF SOIL, ON PLANT NUTRIENT LEVELS IN STRAWBERRY FOLIAGE AND ON FRUIT YIELDS

1962 ◽  
Vol 42 (3) ◽  
pp. 437-444
Author(s):  
W. B. Collins ◽  
R. F. Bishop
Keyword(s):  
Organic Matter ◽  
Total Nitrogen ◽  
Soil Acidity ◽  
Organic Amendments ◽  
Chemical Properties ◽  
Peat Moss ◽  
Plant Nutrient ◽  
Phosphorus Level ◽  
Phosphorus Status ◽  
Properties Of Soil

In a field experiment applications of manure decreased soil acidity but increased total nitrogen, organic matter and adsorbed plus easily acid–soluble phosphorus. Where either peat moss or sawdust was applied there was an increase in soil acidity, total nitrogen and organic matter. The effects of other treatments, e.g., hay and hay compost, were less marked.The phosphorus level in strawberry leaf samples from manured plots reflected the improved phosphorus status of the soil but none of the treatments resulted in significant differences in levels of nitrogen, potassium or calcium in the leaves.All treatments gave highly significant increases in yield. However, the yield with either hay compost or hay was significantly higher than with manure.

scholarly journals Specification of the beechwood soil environment based on chosen soil properties, aiming at the Fageta paupera habitat

2011 ◽  
Vol 57 (No. 5) ◽  
pp. 185-191
Author(s):  
A. Kučera ◽  
K. Rejšek ◽  
P. Dundek ◽  
K. Marosz ◽  
P. Samec ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Soil Properties ◽  
Chemical Properties ◽  
European Beech ◽  
Soil Samples ◽  
Soil Environment ◽  
Laboratory Assessment ◽  
Definition Of ◽  
Properties Of Soil ◽  
And Chemical Properties

ABSTRACT: This paper deals with a specific type of homogeneous beechwood called Fageta paupera. The aim is to acquire information about the heterogeneity of soil environment. As a material we used 20 research plots of semi-natural European beech stands, where the sampling of soil profile and the observation of floristic conditions were realized. Laboratory assessment of soil samples was focused on physicochemical and chemical properties of soil: pH/CaCl<sub>2</sub>, K<sup>+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup>, CEC (T, S, V), C<sub>ox</sub>, N<sub>t</sub>, C/N, C-FA, C-HA, C-CHL, C-HA/FA. Data processing was done with the aim to discover a variability of soils, observing soil genetic horizons individually (H, A, B, C). Research plots were divided into biotopes with the cover of understory vegetation &lt; 15% and &gt; 15% (in accordance with the definition of Fageta paupera) and the variability of soil properties in each horizon for the two above-mentioned biotopes and furthermore for all plots together was investigated. Results show the highest variability of soil properties in the biotope of Fageta paupera, especially in its holorganic (H) and organomineral (A) horizons. Furthermore, regression analysis showed the strongest dependence of the variability of soil properties in the biotope of Fageta paupera.

THE INFLUENCE OF SOME PHYSICAL AND CHEMICAL PROPERTIES ON SOIL AGGREGATION AND RESPONSE TO VAMA

1966 ◽  
Vol 46 (2) ◽  
pp. 155-160 ◽  
Author(s):  
G. R. Saini ◽  
A. A. MacLean ◽  
J. J. Doyle
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Chemical Properties ◽  
Correlation Coefficients ◽  
Multiple Correlation Coefficient ◽  
Mean Weight Diameter ◽  
The Mean ◽  
Relationship Of ◽  
Physical And Chemical ◽  
The Relationship

The relationship of the mean weight diameter of water-stable aggregates to certain soil properties (clay, organic matter, free iron, free aluminum, and polysaccharide contents) and the relationship of the increase in aggregation caused by VAMA to the same properties of 24 New Brunswick soils were evaluated by correlation and regression analyses.Simple correlation coefficients relating aggregation to soil properties indicated that organic matter (r = 0.627), polysaccharides (r = 0.602), and aluminum (r = 0.679) were the most important factors. However, when the influence of each factor was separated by partial correlation, the coefficients were not significant. On the other hand, the combined effects of all factors as indicated by the multiple correlation coefficient (r = 0.743) was significant at the 1% level. The effect of the same soil properties on response to VAMA, as shown by increase in mean weight diameter, indicated that clay exerted the greatest influence. The relationship with other factors was nonsignificant.

scholarly journals Mineralization of soil organic nitrogen under waterlogged conditions in relation to other properties of tropical rice soils

Soil Research ◽  
1983 ◽  
Vol 21 (2) ◽  
pp. 133 ◽  
Author(s):  
KL Sahrawat
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
Soil Properties ◽  
Total Nitrogen ◽  
Organic Nitrogen ◽  
Wetland Rice ◽  
Organic Carbon Content ◽  
Rice Soils ◽  
Wide Range ◽  
Mineralizable Nitrogen

The mineralizable nitrogen pool in wetland rice soils plays a dominant role in the nitrogen nutrition of rice even in fertilized paddies. There is a lack of information on how different soil properties affect ammonification of organic nitrogen in wetland rice soils. Surface samples of 39 diverse Philippine soils representing a wide range of pH, organic matter and texture were studied to determine the relationships between ammonification of organic nitrogen and soil properties. Simple correlation analysis showed that ammonium production was correlated highly significantly with total nitrogen (r = 0.94**), organic carbon (r = 0.91**) and C/N ratio (r = -0.46**), but it was not significantly correlated with cation exchange capacity, clay or pH. Multiple regression analayses showed that organic matter (organic carbon and total nitrogen) accounted for most of the variation in mineralizable nitrogen. These results suggest that organic carbon content is a good index of mineralizable nitrogen in tropical wetland rice soils.

scholarly journals Influence of Soil Properties on the Phytotoxicity of Atrazine, Ametryne, Prometryne, and Diuron in Puerto Rican Soils

1969 ◽  
Vol 52 (4) ◽  
pp. 269-280 ◽  
Author(s):  
L. C. Liu ◽  
H. Cibes Viadé
Keyword(s):  
Organic Matter ◽  
Soil Properties ◽  
Soil Property ◽  
Chemical Properties ◽  
Soil Types ◽  
Wide Range ◽  
Physical And Chemical ◽  
Dosage Prediction ◽  
Concentration Series ◽  
And Chemical Properties

Thirteen soils representing a wide range of physical and chemical properties were used in this study. Four herbicides including Atrazine, Ametryne, Prometryne, and Diuron were applied at a concentration series from 0.5 to 32 p.p.m. to each soil, with the exception of Caño Tiburones soil. Kanota oat (Avena sativa L.) was chosen as an indicator plant. ED50  values were obtained for the various soil types. The result indicated that ED50  values varied greatly with different soil types. Simple, partial, and multiple correlations were made among ED50  values and different soil properties. It was found that the organic matter was the major soil property which contributed chiefly to the phytotoxicity of herbicides. A theoretical relationship between percent soil organic matter and p.p.m.w. of herbicides required for 50-percent fresh-weight reduction of oat was obtained for herbicide dosage-prediction purpose.

scholarly journals Effects of freeze-thaw on soil properties and water erosion

2021 ◽  
Author(s):  
Baoyang Sun ◽  
Feipeng Ren ◽  
Wenfeng Ding ◽  
Guanhua Zhang ◽  
Jinquan Huang ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Soil Erosion ◽  
Soil Properties ◽  
Field Experiments ◽  
Organic Matter Content ◽  
Chemical Properties ◽  
Water Erosion ◽  
Matter Content ◽  
Experimental Conditions ◽  
Freeze Thaw

Freeze-thaw erosion occurs primarily at high latitudes and altitudes. Temperature controlled freeze-thaw events dislodge soil particles and serve as a catalyst for erosion. This review paper provided an overview of the effects of freeze-thaw on soil properties and water erosion. The process of freeze-thaw cycles results in temporary and inconsistent changes in the soil moisture, and affects the soil’s mechanical, physical and chemical properties, such as the soil moisture content, porosity, bulk density, aggregates stability, shear strength and organic matter content and so on. The variation trend and range of the soil properties were related to the soil texture, water content and freeze-thaw degree. Furthermore, the soil erosion was affected by the freeze-thaw processes, as thawing and water erosion reinforce each other. However, research of different experimental conditions on indoor simulations have numerous limitations compared with field experiments. The use of indoor and field experiments to further reveal the freeze-thaw effect on the soil erosion would facilitate improved forecasting.

scholarly journals Accumulation of diazinon in Indian spinach under different doses of rice hull

2017 ◽  
Vol 26 (2) ◽  
pp. 125-131
Author(s):  
Fahmida Akhter ◽  
Didar Ul Alam ◽  
Monira Begum ◽  
Naushad Alam
Keyword(s):  
Organic Matter ◽  
Organic Matter Content ◽  
Chemical Properties ◽  
Matter Content ◽  
Rice Hull ◽  
Vegetable Crops ◽  
Soil Organic Matter Content ◽  
Positive Effect ◽  
Different Doses ◽  
Properties Of Soil

An experiment was conducted to determine the effect of diazinon pesticide on some chemical properties of soil and to evaluate the accumulation of diazinon in Indian spinach (Basilla alba) under different doses of rice hull. Diazinon application had a positive effect to reduce the electrical conductivity (EC) of soil. Values of pH were found to decrease with the addition of diazinon. Diazinon had no effect on soil organic matter content although addition of rice hull increased organic matter content in soil with time. Plant analysis showed that the application of rice hull restricted the uptake of diazinon and continuously decreased with time. Therefore, rice hull could be used to control the uptake of diazinon pesticide by short duration vegetable crops. Dhaka Univ. J. Biol. Sci. 26(2): 125-131, 2017 (July)

scholarly journals Effect of Mid-Term Cropping System Adoption on Soil Chemical Properties at Changunarayan Municipality, Bhaktapur, Nepal

2021 ◽  
Vol 8 (2) ◽  
pp. 80-89
Author(s):  
Saroj Koirala ◽  
Santosh Shrestha ◽  
Prashanta Raut ◽  
Bikram Pandey ◽  
Arbindra Timilsina
Keyword(s):  
Organic Matter ◽  
Total Nitrogen ◽  
Soil Ph ◽  
Cropping Systems ◽  
C:N Ratio ◽  
Chemical Properties ◽  
Soil Chemical Properties ◽  
Future Research ◽  
Available Phosphorus ◽  
Wide Range

Soil chemical properties plays a crucial role in crop yield. In this study, we evaluated the chemical properties of soils under three different cropping systems practiced for more than five years in Changunarayan municipality of Bhaktapur district of Nepal. The cropping systems includes- (i) cultivation inside polyhouse (Treatment A: polyhouse), (ii) paddy-wheat rotation (Treatment B: P-W), and (iii) paddy-wheat-vegetable rotation (Treatment C: P-W-V). Thirty-nine composite samples (13 replicates from each site) were taken from the area based on variation in landforms. Soil pH, organic matter (%), total nitrogen (%), available phosphorus (mgkg-1), and available potassium (mgkg-1) were evaluated for each sample. The study revealed that the soil pH was acidic and ranges between 4.71 and 5.39, organic matter (1.6-2.39%), total nitrogen (0.091-0.13%), phosphorus (4.48-29.24mg kg-1) and potassium (88.04-109.52 mg kg-1). A significant lower mean pH (4.71), and higher mean organic matter (2.39%), total nitrogen (0.13%) and available phosphorus (29.24 mgkg-1) were observed in cultivation under polyhouse. Incorporation of vegetable in paddy-wheat system gave significant (p<0.05) higher accumulation of soil phosphorus and consistently raised other nutrient status. Moreover, cultivation under polyhouse raised C:N ratio (10.55) significantly than other system. This finding can be relevant to wide range of readers that focus on soil chemical properties and can be used in developing future research strategy and sustainable soil management system in the area.

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