scholarly journals Analisis Profil Suhu dan Kadar Air Tanah Pada Budidaya Cabai Rawit (C. frutescens L) Menggunakan Beberapa Macam Mulsa

2018 ◽  
Vol 7 (1) ◽  
pp. 128
Author(s):  
Ni Made Dea Kanikayani ◽  
Sumiyati . ◽  
Ida Ayu Bintang Madrini
Keyword(s):  
Soil Temperature ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Rice Straw ◽  
Plastic Mulch ◽  
Distribution Profile ◽  
Straw Mulch ◽  
Clear Plastic ◽  
Black Plastic

Abstrak Tujuan dari penelitian ini yaitu memperoleh profil suhu dan kadar air tanah pada budidaya tanaman cabai rawit menggunakan beberapa macam mulsa. Penelitian ini menggunakan rancangan acak kelompok, masing-masing terdiri dari lima perlakuan dan tiga ulangan yaitu perlakuan tanpa mulsa, perlakuan mulsa plastik perak, plastik hitam, plastik bening dan perlakuan mulsa jerami padi. Untuk pengukuran suhu tanah menggunakan alat sensor suhu DS18B20 sedangkan untuk kadar air tanah menggunakan metode gravimetri. Pengukuran suhu dan kadar air tanah dilakukan 3 kali yaitu pada 3 hari, 30 hari dan 60 hari setelah tanam. Analisis data suhu dan kadar suhu dan kadar air tanah dalam mulsa menggunakan metode garis kontur. Hasil penelitian suhu tanah menunjukan kontur profil pada saat 3 hari profil sebaran tanpa mulsa 29-33?C, mulsa plastik perak 28-32?C, mulsa plastik hitam 29-34?C, mulsa plastik bening 31-37?C dan mulsa jerami 26-31?C. Pada saat 30 hari profil sebaran tanpa mulsa 26-33?C, mulsa plastik perak 26-31?C, mulsa plastik hitam 27-33?C, mulsa plastik bening 28-32?C dan mulsa jerami 25-30?C dan pada saat 60 hari profil sebaran tanpa mulsa 26-31?C, mulsa plastik perak 25-30?C, mulsa plastik hitam 27-32?C, mulsa plastik bening 31-37?C dan mulsa jerami 26-29?C, sedangkan dari hasil pengukuran suhu tanah yang didapatkan berhubungan dengan hasil kadar air tanahnya. Kata kunci: Mulsa, profil, suhu tanah, kadar air tanah   Abstract The purpose of this research was to water content and soil temperature profile content on mulch for cultivation of cayenne pepper plants with different types of mulch. This research use random design group, every each concist of five treatment and three repetation. Which is a treatment without mulch treatment, silver plastic mulch treatment, black plastic mulch treatment, clear plastic mulch treatment , and rice straw mulch treatment. The variable observed of soil temperature using a temperature sensor DS18B20 while for soil water content using the gravimetric method. Measurement of temperature and soil water content was carried out 3 times, namely at the 3 days, 30 days , and 60 days after planting . The result of the temperature and soil water content is made a profile of the temperature and soil water content in the mulch using the contour line method. The results of the soil temperature research show the profile contour when the at 3 days, without mulch distribution profile is 29-330C, silver plastic mulch 28-320C, black plastic mulch 29-340C, clear plastic mulch 28-320C and rice straw mulch 25-300C. At 30 days, without mulch distribution profile is 26-330C, silver plastic mulch 26-310C, black plastic mulch 27-330C, clear plastic mulch 28-320C and rice straw mulch 25-300C. At  60 days, without mulch distribution profile is 26-310C, silver plastic mulch 25-300C, black plastic mulch 27-320C, clear plastic mulch 31-370C and rice straw mulch 26-290C. The results of measurements of the soil temperature obtained in relation to the results of the soil water content. Keywords: Mulch, Profile, Soil Temperature, Soil Water Content  

Microbial CO2 production from surface and subsurface soil as affected by temperature, moisture, and nitrogen fertilisation

Soil Research ◽  
2008 ◽  
Vol 46 (3) ◽  
pp. 273 ◽  
Author(s):  
Xiaobin Jin ◽  
Shenmin Wang ◽  
Yinkang Zhou
Keyword(s):  
Soil Temperature ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Sanjiang Plain ◽  
Co2 Production ◽  
The Sanjiang Plain ◽  
Subsurface Soil ◽  
C Mineralisation ◽  
Q10 Values

The Sanjiang Plain of north-east China is presently the second largest freshwater marsh in China. The drainage and use of marshes for agricultural fields occurred in the past 50 years, resulting in the increase in cultivated land from about 2.9 × 108 m2 in 1893 to 4.57 × 1010 m2 in 1994. Under human disturbance in the past half century, the environment in Sanjiang Plain has had significant change. We hypothesised that environmental factors such as soil moisture, soil temperature, and soil N levels affect the rates of soil organic C mineralisation and the nature of the controls on microbial CO2 production to change with depth through the soil profile in the freshwater marsh in the Sanjiang Plain. In a series of experiments, we measured the influence of soil temperature, soil water content, and nitrogen additions on soil microbial CO2 production rates. The results showed that Q10 values (the factor by which the CO2 production rate increases when the temperature is increased by 10°C) significantly increased with soil depth through the soil profile (P < 0.05). The average Q10 values for the surface soils were 2.7 (0–0.2 m), significantly lower than that (average Q10 values 3.3) for the subsurface samples (0.2–0.6 m) (P < 0.05), indicating that C mineralisation rates were more sensitive to temperature in subsurface soil horizons than in surface horizons. The maximum respiration rate was measured at 60% water hold capacity for each sample. The quadratic equation function adequately describes the relationship between soil respiration and soil water content, and the R2 values were > 0.80. The sensitivity of microbial CO2 production rate response to soil water content for surface soils (0–0.2 m) was slightly lower than for subsurface soils (0.2–0.6 m). The responses of actual soil respiration rates to nitrogen fertilisation were different for surface and subsurface soils. In the surface soils (0–0.2 m), the addition of N caused a slight decreased in respiration rates compared with the control, whereas, in the subsurface soils (0.2–0.6 m), the addition of N tended to increase microbial CO2 production rates, and the addition of 10 µg N/g soil treatment caused twice the increase in C mineralisation rates of the control. Our results suggested that the responses of microbial CO2 production to changes in soil moisture, soil temperature, and soil N levels varied with soil depth through the profile, and subsurface soil organic C was more sensitive to temperature increase and nitrogen inputs in the freshwater marsh of the Sanjiang Plain.

scholarly journals Evaluation of Organic and Inorganic Mulching as an Integrated Weed Management Strategy in Maize Under Rainfed Conditions

2018 ◽  
Vol 36 ◽  
Author(s):  
T. MEHMOOD ◽  
S.U. KHAN ◽  
A. QAYYUM ◽  
A.R. GURMANI ◽  
W. AHMED ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Rice Straw ◽  
Insect Pests ◽  
Weed Suppression ◽  
Plastic Mulch ◽  
Test Species ◽  
Weed Density ◽  
Straw Mulch ◽  
Dry Biomass ◽  
Black Plastic

ABSTRACT: Weeds affect crop growth, health and yield by competing for resources, and they serve as refuge for insect pests. Mulches of different materials have been found to control weeds and insect pests. A field study was conducted at the village of Mang, Haripur, Khyber Pakhtunkhwa, Pakistan, to explore the effect of various mulch materials on weed suppression in maize fields under rain-fed conditions in 2013. Eight mulch materials treatments were used: control (no mulching), wheat straw mulch, dry leaves of eucalyptus, rice straw mulch, grass clippings, living mulch (soybean crop), black plastic mulch and the herbicide Primextra were investigated under a randomized complete block design with four replications. Statistical analysis of data showed maximum reduction in weed density, relative weed density, fresh biomass and dry biomass in all the test species at 25, 50 and 75 days after sowing (DAS) where Primextra and black plastic mulch were used, and this was statistically similar to where rice straw and wheat straw were used. Maximum weed density, relative weed density, fresh and dry biomass of all weed species were recorded where soybean was intercropped with maize and grass clippings were used. Based on these results, it was inferred that the mulch material of eucalyptus and rice straw can effectively be used for controlling weeds in maize fields under rain-fed conditions.

scholarly journals SURFACE RESIDUES: EFFECTS ON SOIL MOISTURE AND TEMPERATURE1

2021 ◽  
Vol 34 (4) ◽  
pp. 887-894
Author(s):  
GUSTAVO HADDAD SOUZA VIEIRA ◽  
ARILDO SEBASTIÃO SILVA ◽  
ARUN DILIPKUMAR JANI ◽  
LUSINERIO PREZOTTI ◽  
PAOLA ALFONSA VIEIRA LO MONACO
Keyword(s):  
Soil Temperature ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Soil Depth ◽  
Block Design ◽  
Soil Disturbance ◽  
Dry Season ◽  
Depth Range ◽  
Sunn Hemp

ABSTRACT This study aimed to determine how crop residue placement and composition would affect soil water content and temperature during the dry season in the central region of Espírito Santo state, Brazil. A 19-week field study was conducted from April to August 2017. A 2 x 4 factorial study with four replications was implemented using a randomized complete block design. Factors were soil management [conventional tillage (CT) and no soil disturbance (ND)] and residue amendment [maize (Zea mays L.), sunn hemp (Crotalaria juncea L.), a maize-sunn hemp mixture, and a no amendment control]. Soil water content and temperature were measured weekly at predetermined soil depth intervals. Soil water content was higher in ND plots amended with surface residues than under all other treatments in the 0 to 0.05 m depth range. All residue amendments in this range were equally effective in conserving soil water. Surface residues reduced soil temperature by up to 8.4 °C relative to the control in ND plots. Incorporating residue amendments by CT cancelled all temperature-moderating benefits provided by surface residues. These results indicate that surface residues from cereals, legumes, or cereal/legume mixtures are equally effective in conserving soil water and moderating soil temperature during the dry season. Additional research is needed to determine how improved soil environmental conditions, generated by surface residues, would affect nutrient acquisition and crop performance.

scholarly journals Soil CO2 efflux in a beech forest: dependence on soil temperature and soil water content

1999 ◽  
Vol 56 (3) ◽  
pp. 221-226 ◽  
Author(s):  
Daniel Epron ◽  
Lætitia Farque ◽  
Éric Lucot ◽  
Pierre-Marie Badot
Keyword(s):  
Soil Temperature ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Beech Forest ◽  
Soil Co2 Efflux ◽  
Co2 Efflux ◽  
Soil Co2 ◽  
Forest Dependence

The effect of soil temperature and soil water content on thermal properties in an artificial forestland and a natural regrowth grassland

2020 ◽  
Author(s):  
Tangtang Zhang ◽  
Xin Ma
Keyword(s):  
Thermal Conductivity ◽  
Thermal Properties ◽  
Soil Temperature ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Soil Condition ◽  
Soil Thermal Conductivity ◽  
Soil Thermal Properties ◽  
Increasing Temperature

&lt;p&gt;Soil temperature, soil water content and soil thermal properties were measured in an artificial forestland and a natural regrowth grassland from November in 2017 to July in 2019. The results show that the effects of soil temperature and soil water content on thermal properties are different in different soil condition. Soil thermal conductivity (K) and soil volumetric heat capacity (C) increase with increasing temperature in unfrozen period, but soil diffusivity (D) has no significant dynamic cycle and it almost keeps a constant level in a certain time. Soil thermal conductivity (K) decreases with increasing temperature during soil frozen period. The C and K increase with increasing soil water content in unfrozen period, while the D decrease with increasing soil water content.&lt;/p&gt;

Distribution of carbon and nutrients and fluxes of mineral nitrogen after clear-felling a Pinusradiata plantation

1990 ◽  
Vol 20 (9) ◽  
pp. 1490-1497 ◽  
Author(s):  
P. J. Smethurst ◽  
E. K. S. Nambiar
Keyword(s):  
Organic Matter ◽  
Soil Temperature ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
N Mineralization ◽  
Soil Depth ◽  
Mineral N ◽  
Southeastern Australia ◽  
Nutrients Fluxes

The effects of clear-felling and slash removal on the distribution of organic matter and nutrients, fluxes of mineral N, and soil water and temperature were studied in a 37-year-old Pinusradiata D. Don plantation, on a sandy Podzol in southeastern Australia. Slash, litter, and the top 30 cm of soil combined contained 1957 kg N•ha−1, of which slash and litter contained 12 and 25%, respectively. Therefore, loss of slash and litter due to burning or other intensive site preparation practices would substantially reduce the N capital at the site. During the first 18 months after clear-felling, soil water content in the clear-felled area was up to 50% higher than in the uncut plantation, but there were only minor differences in soil temperature. Slash removal decreased the water content of litter, but had little effect on the water content or temperature of the soil. In the uncut plantation, N mineralized in litter and soil was completely taken up by the trees. Following clear-felling, rates of N mineralization increased in litter after 4 months, and in soil after 12 months, but changes were less pronounced with slash removal. After clear-felling, increased mineralization and the absence of trees (no uptake) led to increased concentrations of mineral N in both litter and soil, 64–76% of which was leached below the 30 cm soil depth prior to replanting. Despite leaching, concentrations of mineral N after clear-felling remained higher than those in the uncut plantation for at least 3 years.

Influence of temperature on soil water content measured by ECH2O-TE sensors

2012 ◽  
Vol 26 (3) ◽  
pp. 259-269 ◽  
Author(s):  
M. Kočárek ◽  
R. Kodešová
Keyword(s):  
Soil Temperature ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Soil Depth ◽  
Regression Equations ◽  
Influence Of Temperature ◽  
Reference Soil ◽  
Guideline Values ◽  
Influence Of Temperature On

Influence of temperature on soil water content measured by ECH2O-TE sensorsThe aim of this study was to investigate the influence of temperature on water content value measured by ECH2O-TE sensors. The influence of temperature on measured soil water content values was clearly demonstrated. Soil water content values measured during the day apparently oscillated with oscillating soil temperatures. Average daily temperature and soil water content were calculated for selected periods. Regression relationships between deviations of soil temperature and soil water content from their daily average values were evaluated. Correlation between the soil water content and temperature deviations increase with the soil depth due to the lower influence of rainfall and evaporation at the soil surface on measured soil water content values in deeper soil layersegsoil water content oscillation was controlled mostly by oscillating temperature. The guideline values of linear regression equations (R2>0.8) were very similar, close to value 0.002 and the intercept values were equal to zero. The equation for recalculation of measured soil water content values at given temperature to reference soil water content for reference soil temperature, was propozed on the basis of this analysis.

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