scholarly journals Pattern of N Mineralization and Nutrient Uptake of Tithonia diversifolia and Saccharum officinarum Leaves in Sandy Loam Soil

2021 ◽  
Author(s):  
Yulfita Farni ◽  
Sugeng Prijono ◽  
Retno Suntari ◽  
Eko Handayanto
Keyword(s):  
Nutrient Uptake ◽  
N Mineralization ◽  
Sandy Loam ◽  
Saccharum Officinarum ◽  
Sandy Loam Soil ◽  
Tithonia Diversifolia ◽  
Randomized Design ◽  
N Release ◽  
Loam Soil ◽  
Completely Randomized Design

Background: This study aimed to determine the pattern of N mineralization of tithonia (Tithonia diversifolia) and sugarcane (Saccharum officinarum) leaves and assess the uptake of N nutrients in maize by giving T. diversifolia and S. officinarum leaves with different qualities on sandy loam soil. Methods: The research used a completely randomized design (CRD) with following treatment: T1 (100% T. diversifolia), T2 (100% S. officinarum), T3 (75% T. diversifolia: 25% S. officinarum), T4 (50% S. officinarum: 50% T. diversifolia), T5 (25% T. diversifolia leaves: 75% S. officinarum), T6 (without T. diversifolia and S. officinarum or control). Result: The results showed that the N mineralization pattern of the organic matter combination was significantly higher than the control for all observations. The amount of N mineral released in each treatment was T1 (54.58-529.7 mg/kg), T2 (41.80-381 mg/kg), T3 (47.69-473.6 mg/kg), T4 (46.70-424.0 mg/kg), T5 (70.69-378.9 mg/kg) and T6 (47.14-303.6 9 mg/kg). The sequence of cumulative N release during 12 weeks of incubation was T1 (529 mg/kg) greater than T3 (573.6 mg/kg) greater than T4 (424.0 mg/kg) greater than T2 (381 mg/kg) greater than T5 (378.9 mg/kg) greater than T6 (303.6 mg/kg). These results suggested that T. diversifolia and S. officinarum leaves significantly increased N nutrient uptake in maize by 125% to 144.54%.

scholarly journals Effect of Fertilizer Management on NPKS Leaching Loss from Sandy Loam Soil under Alternate Wetting and Drying Condition

2016 ◽  
Vol 20 (1) ◽  
pp. 59-64
Author(s):  
MN Islam ◽  
MM Rahman ◽  
MJA Mian ◽  
MH Ali
Keyword(s):  
Sandy Loam ◽  
Foliar Spray ◽  
Sandy Loam Soil ◽  
Fertilizer Management ◽  
Wetting And Drying ◽  
Leaching Loss ◽  
Randomized Design ◽  
Loam Soil ◽  
Dry Soil

Leaching loss of nutrients hampers plant growth and contributes to environmental pollution. An experiment was conducted at the net house of Soil Science Department, Bangladesh Agricultural University, Mymensingh during January to May 2009 to find out the leaching loss of N, P, K and S from sandy loam soil. Each pot received 6.67 kg dry soil with an opening at the bottom for collecting leachates. Six treatments were used: T0 = control, T1 = NPKS (120, 25, 60 and 20 kg ha-1), T2 = NPKS (180, 37, 90 and 30 kg ha-1), T3 = NPKS (90, 5, 28 and 17 kg ha-1) + cowdung (2.5 t ha-1), T4 = NPKS (109, 25, 60 and 20 kg ha-1, N as USG) and T5 = as T1 but N applied as foliar spray. Treatments were arranged in a completely randomized design with three replications. Leachates were collected at 15 days interval for determination of NPKS. The total leaching loss of N, P, K and S due to different treatments ranged from 16.00 to 90.21, 0.07 to 0.29, 9.60 to 11.20 and 3.75 to 17.81 kg ha-1, respectively. Application of chemical fertilizer at higher rates resulted in greater loss of nutrients. Integrated fertilizer management with cowdung (T3) minimized such losses. Use of USG also reduced leaching loss of N, P, K and S. The application of cowdung and USG with recommended balanced fertilizer might be useful for minimizing N, P, K and S loss from wetland rice field.Bangladesh Rice j. 2016, 20(1): 59-64

scholarly journals Dead coverage as soil conservationist practice

2019 ◽  
Vol 12 (4) ◽  
pp. 30
Author(s):  
H. Cândido ◽  
D. Silva
Keyword(s):  
Soil Moisture ◽  
Soil Conservation ◽  
Sandy Loam ◽  
Soil Surface ◽  
Mato Grosso ◽  
Surface Moisture ◽  
Randomized Design ◽  
Loam Soil ◽  
Completely Randomized Design ◽  
Erosion Loss

Soil degradation and erosion loss due to inadequate management pose a serious threat to agricultural productivity and contribute to the aggravation of environmental impacts. Soil, vegetative and mechanical practices of soil conservation are being developed to assist in the attenuation of these problems. The present research was carried out with the objective of evaluating the effect of mulching in the conversation of a sandy loam soil in the state of Mato Grosso. The study was developed under field conditions at the Federal University of Mato Grosso, Rondonópolis Campus and a completely randomized design with two treatments, with and without vegetation cover, where soil temperature, spontaneous plant quantification, soil moisture and relative humidity of the soil surface. It was verified that mulching kept the soil with a temperature gradient around two degrees lower than the uncovered treatment, besides reducing the emergence of spontaneous plants in 36 times and raising soil moisture by approximately four degrees, but not had an effect on soil surface moisture. Therefore, the use of mulch is an advantageous practice, which improves the hydrothermal characteristics of the soil and reduces the incidence of spontaneous plants

Short-term effects of polyacrylamide and dicyandiamide on C and N mineralization in a sandy loam soil

2016 ◽  
Vol 32 (1) ◽  
pp. 127-136 ◽  
Author(s):  
C. Watson ◽  
Y. Singh ◽  
T. Iqbal ◽  
C. Knoblauch ◽  
P. Simon ◽  
...  
Keyword(s):  
N Mineralization ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Short Term ◽  
C And N Mineralization ◽  
Loam Soil ◽  
C And N ◽  
Short Term Effects

scholarly journals Kinetics of potassium release from soil amended with clinoptilolite zeolite and maize stalks biochar

2021 ◽  
Vol 2 (1) ◽  
pp. 50-56
Author(s):  
Fatma N. Thabit ◽  
Keyword(s):  
Release Rate ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Exchangeable K ◽  
Randomized Design ◽  
Loam Soil ◽  
Kinetics Of ◽  
Maize Stalks ◽  
K Release ◽  
Cacl2 Solution

A laboratory incubation experiment in a completely randomized design with three replications was carried out for 90 days to test the effect of zeolite and biochar application to calcareous sandy loam soil on potassium forms distribution and its release rate. The treatments included (1) Absolute control (C), (2) 10 g kg-1 zeolite (Z1), (3) 20 g kg-1 zeolite (Z2), (4) 10 g kg-1 biochar (B1), and (5) 20 g kg-1 biochar (B2). After incubation period, the concentrations of soluble, exchangeable, and non-exchangeable K and the release rate of K to 0.01 M CaCl2 during 200 min (10 successive extractions for soil samples of 20 min for each using CaCl2 solution) were determined. Results showed that zeolite application increased the soluble and exchangeable K concentrations. However, amending soil with biochar had a positive effect on all K forms. Addition of zeolite or biochar increased the cumulative K release. The parabolic diffusion, power function and Simple Elovich models described the kinetics of K release to CaCl2 solution well from all the soil treatments. Zeolite and maize stalks biochar may have an effective role in improvement of K availability and release in the calcareous sandy loam soil as well as may aid in increasing the ability of this soil to supply the different crops with K.

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