scholarly journals Sequential studies on soil physical properties by application of hydrogel in groundnut (ArachishypogaeaL.) under Central dry zone of Karnataka.

2020 ◽  
pp. 662-670
Keyword(s):  
Physical Properties ◽  
Field Capacity ◽  
Moisture Stress ◽  
Soil Physical Properties ◽  
Research Station ◽  
Available Water Content ◽  
Combined Application ◽  
Dry Zone ◽  
Sequential Studies ◽  
Horticultural Research

A field study was conducted at Zonal Agricultural and Horticultural Research Station (ZAHRS), Babbur farm, Hiriyur to study “Effect of hydrogel on soil properties in groundnut (ArachishypogaeaL.) in Central dry zone of Karnataka” with an objective to study the effect of hydrogel on soil physical properties. The results revealed that the treatment with an application of RDF + hydrogel @ 4 kg ha-1and FYM @ 10 t ha-1recorded the higher soil porosity (48.64 %), MWHC (25.27 %), higher field capacity of the soil (15.56 %), lowest PWP (2.13 %) and higher available water content (13.43 %). The treatment with RDF + 3.0 kg hydrogel ha-1 + 10 tons FYM ha -1 and RDF + 2.0 kg hydrogel ha -1 + 10 tons FYM ha -1 were found on par with the above said treatment. Thus, the moisture stress, which is limiting the yield in groundnut production, could be overcome by the combined application of RDF, FYM @ 10 t ha-1and hydrogel @ 4.0 kg ha-1.

Effect of Nano, Bio and Organic Fertilizers on Some Soil Physical Properties and Soybean Productivity in Saline Soil

2021 ◽  
pp. 44-57
Author(s):  
Kh. A. Shaban ◽  
M. A. Esmaeil ◽  
A. K. Abdel Fattah ◽  
Kh. A. Faroh
Keyword(s):  
Humic Acid ◽  
Hydraulic Conductivity ◽  
Physical Properties ◽  
Bulk Density ◽  
Saline Soil ◽  
Field Capacity ◽  
Soil Physical Properties ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Soil Conditions

A field experiment was carried out at Khaled Ibn El-waleed village, Sahl El-Hussinia, El-Sharkia Governorate, Egypt, during two summer seasons 2019 and 2020 to study the effect of NPK nanofertilizers, biofertilizers and humic acid combined with or without mineral fertilizers different at rates on some soil physical properties and soybean productivity and quality under saline soil conditions. The treatments consisted of: NPK-chitosan, NPK-Ca, humic acid, biofertilzer and control (mineral NPK only). In both seasons, the experiment was carried out in a split plot design with three replicates. The results indicated a significant increase in the soybean yield parameters as compared to control. There was also a significant increase in dry and water stable aggregates in all treatments as compared to control. The treatment NPK-Chitosan was the best in improving dry and stable aggregates. Also, hydraulic conductivity and total porosity values were significantly increased in all treatments due to increase in soil aggregation and porosity that led to increase in values of hydraulic conductivity. Values of bulk density were decreased, the lowest values of bulk density were found in NPK-chitosan treatment as a result of the high concentration of organic matter resulted from NPK-chitosan is much lighter in weight than the mineral fraction in soils. Accordingly, the increase in the organic fraction decreases the total weight and bulk density of the soil. Concerning soil moisture constants, all treatments significantly increased field capacity and available water compared to control. This increase was due to improvement of the soil aggregates and pores spaces which allowed the free movement of water within the soil thereby, increasing the moisture content at field capacity.

scholarly journals Co-Application of Farmyard Manure and Gypsum Improves Yield and Quality of Peanut (Arachis hypogaea) under Rainfed Conditions

2021 ◽  
Vol 26 (02) ◽  
pp. 224-230
Author(s):  
Rizwan Latif
Keyword(s):  
Physical Properties ◽  
Bulk Density ◽  
Arachis Hypogaea ◽  
Crude Protein ◽  
Management Practices ◽  
Farmyard Manure ◽  
Soil Physical Properties ◽  
Combined Application ◽  
Moisture Percentage ◽  
Yield Quality

Peanut (Arachis hypogaea L.) is the common cash crop of the rainfed areas. Appropriate management practices are very important to get better yield of peanut in sandy loam soil. A field study was carried out during the growing seasons of 2018 and 2019 to evaluate the effect of poultry manure (PM) (37.1 t ha-1), farmyard manure (FYM) (49.4 t ha-1), gypsum (GYP) (2.5 t ha-1), liquid humic acid (HA) (49.4 L ha-1) and co-application of GYP (1.2 t ha-1) and FYM (24.7 t ha-1) on peanut yield, quality and soil physical properties. Application of FYM, PM, HA and GYP (alone or in combination) significantly improved peanut yield, quality and soil physical properties. The combined application of GYP and FYM proved most effective (P ≤ 0.05) in improving the peanut yield (no. of pods per plant, 100 seed weight etc), quality (crude protein and oil content) and soil physical properties (moisture percentage, infiltration rate and bulk density). The combined application of GYP and FYM increased the pods yield by 67 and 65% during 2018 and 2019, respectively than control. Crude proteins (21%) and oil contents (9.0%) were also substantially increased in the combined application. Moreover, the combined application of GYP and FYM significantly retained the soil moisture and reduced bulk density of soil. Present findings suggest that integrated use of FYM and GYP under field conditions could improve the crop productivity, crude protein, oil contents, moisture percentage, and reduce the bulk density of soil thus improving overall soil health. © 2021 Friends Science Publishers

Effects of the combined application of biomaterial amendments and polyacrylamide on soil water and maize growth under deficit irrigation

2019 ◽  
Vol 99 (2) ◽  
pp. 182-194
Author(s):  
Yajin Hu ◽  
Nini Guo ◽  
Robert L. Hill ◽  
Shufang Wu ◽  
Qin’ge Dong ◽  
...  
Keyword(s):  
Physical Properties ◽  
Soil Water ◽  
Deficit Irrigation ◽  
Irrigation Management ◽  
Field Capacity ◽  
Soil Physical Properties ◽  
Soil Conditions ◽  
Irrigation Level ◽  
Maize Growth ◽  
Irrigation Levels

Combined applications of mixed biomaterial amendments and polyacrylamide (MBAP) to maize in semiarid areas have the potential to improve soil physical properties such that improved crop performance may be obtained under deficient irrigation management. In this study, three MBAP applications were C0 (conventional N fertilization application) and C2 and C4 (MBAP applied at rates of 2 and 4 t ha−1, respectively); three irrigation levels were W3 (nearly full irrigation, 85%–100% of field capacity), W2 (light deficit irrigation, 65%–75% of field capacity), and W1 (medium deficit irrigation, 55%–65% of field capacity). Under the same irrigation level, the MBAP significantly decreased soil bulk densities and increased soil hydraulic conductivities and soil water contents. The effects of irrigation levels on soil bulk densities and soil saturated hydraulic conductivities were not significant. Consequently, MBAP improved soil conditions for maize growth and increased grain and biomass yields, especially at the two deficit irrigation levels. Compared with that of C0, grain yields for C2 and C4 were increased by 52.8% and 39.3% under W2, and by 23.5% and 13.7% under W1, respectively. The MBAP and irrigation had significant interaction effects on evapotranspiration during sowing to jointing and on plant heights at 32 d after sowing. The incorporation of MBAP (2 t ha−1) and chemical fertilizer (111.8 kg N ha−1) resulted in the greatest yields under light deficit irrigation and seemed the best approach to improve soil physical properties and sustain maize productivity using limited water resources in dryland regions.

Foliar Application of Limewash Improves Vegetative and Reproductive Growth and Fruit Quality of Bell Pepper under Deficit Irrigation

2019 ◽  
pp. 69-74
Author(s):  
Hashim Hussain ◽  
Ishfaq Ahmad Hafiz ◽  
Touqeer Ahmad ◽  
Irfan Ali ◽  
Nadeem Akhtar Abbasi ◽  
...  
Keyword(s):  
Foliar Application ◽  
Bordeaux Mixture ◽  
Citrus Canker ◽  
Fruit Production ◽  
Research Station ◽  
Canker Disease ◽  
Combined Application ◽  
Vegetative And Reproductive Growth ◽  
Horticultural Research

A good quality fruit fetches a high market value. Citrus canker disease badly affects quality of citrus fruits including grapefruit. The present study was conducted to find out suitable chemicals, alone or incombination, for the control of citrus canker. The experiment was conducted on 15-year-old disease-affected grapefruit cv. Shamber plants in the orchard of Horticultural Research Station, Sahiwal to control the disease for better quality fruit production. Therefore, four sprays of Aliette (300 g 100 L-1 of water), Bordeaux mixture (1:1:100), Flare (100 g 100 L-1 of water) or Bordeaux mixture + Flare were applied; two in the month of March and other two in the month of August with fifteen days interval along with control (no chemical). Combined application of Bordeaux mixture and Flare reduced the attack of citrus canker on leaves and fruits. Comparatively lower values of affected leaves (1.27%), lesions per leaf (0.40), affected fruits (0.25%) and lesions per fruit (0.22) were observed in the treatment in which a combination of Bordeaux mixture and Flare was sprayed on the plants. The disease percentage was high on leaves and fruits of unsprayed (control) plants, while other thee treatment were in the middle in their efficacy to control the disease.

Changes in soil physical properties under grazed pastures

Soil Research ◽  
1984 ◽  
Vol 22 (3) ◽  
pp. 343 ◽  
Author(s):  
ST Willatt ◽  
DM Pullar
Keyword(s):  
Hydraulic Conductivity ◽  
Physical Properties ◽  
Bearing Capacity ◽  
Soil Compaction ◽  
Soil Physical Properties ◽  
Research Station ◽  
Stocking Rate ◽  
Grazed Pastures ◽  
Western Victoria ◽  
Stocking Rates

Soil compaction caused by animal treading in grazing of pastures has not been considered a serious problem in Australian soils. However, recent circumstantial evidence suggests that in northern Victoria compaction does occur. In an experiment conducted at the Hamilton Pastoral Research Station (western Victoria) in 1973, grazed pastures with various stocking rates showed increases in bulk density and bearing capacity of the soil, and decreases in hydraulic conductivity occurred with increasing stocking rate. Some change in pasture composition was also noted.

scholarly journals INFLUENCE OF ORGANIC FERTILIZER SAGO COMPOST ON ULTISOLS SOIL PHYSICAL PROPERTIES OF TELAGA KODOK SUB VILLAGE IN HITU VILLAGE OF CENTRAL MALUKU DISTRICT AND THE CORN (Zea Mays Ceratina) CORPS PRODUCTION

2019 ◽  
Vol 2 (1) ◽  
pp. 042-056
Author(s):  
Science Nature
Keyword(s):  
Physical Properties ◽  
Particle Density ◽  
Soil Analysis ◽  
Block Design ◽  
Organic Fertilizer ◽  
Field Capacity ◽  
Soil Physical Properties ◽  
Corn Crop ◽  
Random Block ◽  
Random Block Design

This study aims to prove that the giving of organic fertilizer sago compost can improve soil physical properties and improve yields of maize crops on Ultisols. This research was conducted in Telaga Kodok Subvillage, Hitu Village Central of Maluku District in April 2016 until its completion. Soil analysis was conducted at Balai Penelitian Tanah Bogor. This research used Factorial Random Block Design which consist of one factor and repeated three times with compost dosage of sago compost is K0 (no compost), K1 (30 ton/ha), K2 (45 ton/ha), K3 (60 ton/ha ). Giving the ela sago compost can improve soil physical properties that is able to reduce the bulk density (0.73 g/cm3), particle density (1.78 g/cm3) and rapid drainage pores (7.69%) and able to improve/increase moisture content of field capacity (43.91%) and water available pore (17.00%). The ela sago compost as organic fertilizer can increase the yield of corn crop is 89,80 g/plant or 4,28 t/ha. The optimum dosage of ela sago compost as organic fertilizer found to improve soil physical properties and increase the yield of corn crop is 60 t/ha.

scholarly journals Evaluation of Various Chemicals Against Citrus Canker on Grapefruit cv. Shamber

2019 ◽  
pp. 75-77
Author(s):  
Mudassar Naseer ◽  
Imran Muhammad Siddique ◽  
Sana Asghar ◽  
Muhammad Raza Saliq ◽  
Muhammad Sami Ullah ◽  
...  
Keyword(s):  
Bordeaux Mixture ◽  
Citrus Canker ◽  
Fruit Production ◽  
Research Station ◽  
Citrus Fruits ◽  
Canker Disease ◽  
Combined Application ◽  
Horticultural Research ◽  
Citrus Canker Disease

A good quality fruit fetches a high market value. Citrus canker disease badly affects quality of citrus fruits including grapefruit. The present study was conducted to find out suitable chemicals, alone or incombination, for the control of citrus canker. The experiment was conducted on 15-year-old disease-affected grapefruit cv. Shamber plants in the orchard of Horticultural Research Station, Sahiwal to control the disease for better quality fruit production. Therefore, four sprays of Aliette (300 g 100 L-1 of water), Bordeaux mixture (1:1:100), Flare (100 g 100 L-1 of water) or Bordeaux mixture + Flare were applied; two in the month of March and other two in the month of August with fifteen days interval along with control (no chemical). Combined application of Bordeaux mixture and Flare reduced the attack of citrus canker on leaves and fruits. Comparatively lower values of affected leaves (1.27%), lesions per leaf (0.40), affected fruits (0.25 %) and lesions per fruit (0.22) were observed in the treatment in which a combination of Bordeaux mixture and Flare was sprayed on the plants. The disease percentage was high on leaves and fruits of unsprayed (control) plants, while other thee treatment were in the middle in their efficacy to control the disease.

scholarly journals Influence of the Pedological Drought and Irrigation on Quantity and Quality of the Maize Yield in the Crişurilor Plain Conditions

1970 ◽  
Vol 66 (2) ◽  
Author(s):  
Cristian DOMUŢA
Keyword(s):  
Protein Content ◽  
Water Consumption ◽  
Aridity Index ◽  
Field Capacity ◽  
Maize Yield ◽  
Research Station ◽  
Available Water Content ◽  
Total Water Consumption ◽  
Yield Gain ◽  
June July

The paper is based on the researches carried out in Oradea during 2006-2008 in the following variants: V1= Irrigated, without irrigation suspending; V2= Irrigated, irrigation suspending in May; V3 = Irrigated, irrigation suspending in June; V4= Irrigated, irrigation suspending in July; V5= Irrigated, irrigation suspending in August; V6= Unirrigated. The hybrid use: Fundulea 376. Total nitrogen of the maize grains was determined in the laboratory of the Agricultural and Development Research Station Oradea. In the variant with optimum irrigation, water reserve on 0-75 cm depth was maintained between easily available water content and field capacity. Pedological drought was determined every year and the irrigation was need, too. The irrigation determined the increase of the total water consumption and yield gain in comparison with unirrigated variant. Irrigation suspending in different months determined the yield losses very significant statistically. The biggest protein content was registered in the variant without the irrigation suspending; the values registered in the variants with irrigation suspending in May, June, July and August and in the unirrigated variant are smaller, with differences statistically assured. There were a direct link between de Martonne aridity index values and water consumption, yield and protein content and an inverse link between pedological drought and yield quantity and protein content. These are the arguments for irrigation opportunity in maize from Crişurilor Plain

scholarly journals Physical assessment of a Mollisol under agroecological managements at Quillota valley. Mediterranean Central Chile

2020 ◽  
Vol 47 (3) ◽  
pp. 261-279
Author(s):  
Manuel Casanova ◽  
Berthin Ticona ◽  
Osvaldo Salazar ◽  
Eduardo Gratacós ◽  
Marco Pfeiffer ◽  
...  
Keyword(s):  
Physical Properties ◽  
Soil Quality ◽  
Management Practices ◽  
Stability Index ◽  
Total Porosity ◽  
Field Capacity ◽  
Conventional Tillage ◽  
Soil Physical Properties ◽  
No Tillage ◽  
Central Chile

A number of agroecological practices have been proposed for assessing soil quality. Several physical soil properties have been shown to be important for determining soil quality by using the sustainability index (SI) and the cumulative rating approach. The main aim of the study was to determine the effects of different agroecological managements on the physical properties of a Mollisol in the Mediterranean central Chile. In addition, some physical properties were selected to compare the soil quality among different agroecological management practices and highly mechanized intensive systems by using the SI and cumulative rating approaches. An experimental field was defined in an area of 3.5 ha in 2014. Four sites with different agroecological practices were selected in 2019 to assess soil physical properties: rainfed Mediterranean annual prairie - no tillage (1-S), irrigated perennial prairie with deep-root species - no tillage (2-N), irrigated annual and perennial prairie - conventional tillage (4-S), irrigated vegetables and flowers - minimum tillage (4-N); an avocado orchard with traditional management was used as the control. Soil organic carbon and the following soil physical properties were selected to assess SI and CR: bulk density, total porosity, void ratio, air capacity, fast-drainage pores, relative field capacity, hydraulic conductivity, structural stability index and unavailable water pores. The applicability of the selected physical indicators to the SIs of agroecological management practices compared with the control was demonstrated. The cumulative rating index (CR) for each land use showed that all agroecological practices constituted sustainable soil management (25≤CR<30), whereas the avocado orchard showed the least sustainable management (30≤CR<40), and a change in soil use is recommended.

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