scholarly journals Plant Factors for Irrigating Mixed Turfgrass and Shrub Landscapes in a Humid Environment

2015 ◽  
Vol 25 (3) ◽  
pp. 322-329
Author(s):  
Tim R. Pannkuk
Keyword(s):  
Water Conservation ◽  
Sandy Loam ◽  
Block Design ◽  
Drainage System ◽  
Sprinkler System ◽  
Vegetative Cover ◽  
Soil Leachate ◽  
Soil Moisture Sensors ◽  
Randomized Block Design ◽  
Loam Soil

Landscape water conservation methods and techniques contribute to managing water resources. Use of reference evapotranspiration (ETo) data and landscape coefficients is one method that needs further development. Local ETo data and actual plant water use were used to calculate plant factors (PFs) for three model landscapes composed of mixtures of turfgrass and shrubs. Model landscapes using a sandy loam soil included st. augustinegrass (Stenotaphrum secundatum), privet (Ligustrum japonicum), dwarf burford holly (Ilex cornuta ‘Burfordii Nana’), and dwarf yaupon holly (Ilex vomitoria ‘Nana’) at three ratios of turfgrass to shrub vegetative cover: 80:20, 50:50, and 20:80. Soil was placed into inground lysimeters in a complete randomized block design with soil moisture sensors and a drainage system. Lysimeters were irrigated with a sprinkler system, and water was applied at a rate of 100% replacement of ETo minus precipitation. Lysimeter soil leachate was collected from the drainage system and quantified. After 2 years, the PF of 20:80 and 50:50 turfgrass/shrub combination were greater than the PF of the 80:20 combination. Plant factors for the 80:20, 50:50, and 20:80 turfgrass:shrub combinations were 0.68, 0.97, and 1.01, respectively. There were no seasonal differences in PFs. Total growing season leachate depth over 2 years was 63.4, 30.7, and 12.6 mm for 80:20, 50:50, and 20:80, respectively. Further work on PFs should include other plant combinations, and evaluation in other climatic zones.

Effect of integrated nutrient management on physical and chemical properties of soil

2016 ◽  
Vol 35 (1) ◽  
Author(s):  
Suman Meena ◽  
Narendra Swaroop ◽  
Joy Dawson
Keyword(s):  
Nutrient Management ◽  
Particle Density ◽  
Sandy Loam ◽  
Pore Space ◽  
Block Design ◽  
Chemical Properties ◽  
Available Nitrogen ◽  
Randomized Block Design ◽  
Loam Soil ◽  
Physical And Chemical

A field experiment was conducted during <italic>Kharif</italic> season 2014 at the Research farm of Soil Science Allahabad School of Agriculture, laid out in randomized block design on sandy loam soil, containing sand 62.71%, silt 23.10% and clay 14.19% (Inceptisols). It was observed that for post harvest soil properties in treatment N<sub>20</sub>+ FYM @ 10 t ha<sup>−1</sup> and <italic>Rhizobium</italic> P<sub>40</sub>K<sub>40</sub> were improved significantly due to integrated use of inputs. Organic carbon-0.75%, available nitrogen- 333.23 kg ha<sup>−1</sup>, phosphorus- 34.58 kg ha<sup>−1</sup>, potassium -205.83 kg ha<sup>−1</sup>, pore space -50.80 %, pH -6.80 were found to be significant and bulk density -1.07 Mgm<sup>−3</sup>, particle density -2.62 Mgm<sup>−3</sup>, EC at 27°C -0.24 dSm<sup>−1</sup> were found to be non-significantly improved in this treatment.

scholarly journals Effect of Intercropping on Productivity and Profitability of Sesame under Dryland Arid Conditions

2020 ◽  
Vol 8 (2) ◽  
pp. 152-156
Author(s):  
Moola Ram
Keyword(s):  
Agricultural Research ◽  
Sandy Loam ◽  
Block Design ◽  
Research Station ◽  
High Potassium ◽  
Net Return ◽  
Net Returns ◽  
Randomized Block Design ◽  
Loam Soil ◽  
Total Productivity

An experiment on sesame intercropping system was conducted during kharif (rainy) season of 2017 on sandy loam soil (8.72 pH, 0.88 EC dS m-1), with low nitrogen (137 kg N ha-1), medium phosphorus (14.4 kg ha-1) and high potassium content (357 kg ha-1) at Agricultural Research Station, Mandor, Jodhpur in randomized block design with 3 replications. Among 7 treatments (T1 – Sole sesame, T2 – Sesame + Urdbean in 3:1, T3 – Sesame + Urdbean in 4:2, T4 – Sesame + Mungbean in 3:1, T5 – Sesame + Mungbean in 4:2, T6 – Sesame + Mothbean in 3:1, T7 – Sesame + Mothbean in 4:2 row ratio), it was found that intercropping of sesame with mungbean in ratio 3:1 resulted significantly higher total productivity and net returns (541 kg ha-1 & Rs. 18270 ha-1) over sole sesame crop (344 kg ha-1 & Rs. 6156 ha-1) followed by mungbean in 4:2 (490 kg ha-1 with net return of Rs. 15164 ha-1) being at par with urdbean in 3:1 (473 kg ha-1 with net return of Rs. 14078 ha-1). It was concluded that mungbean can be grown as a beneficial intercrop in sesame under dryland conditions of Rajasthan.

scholarly journals Yellow Passion fruit performance in organic crop under mulch

2018 ◽  
Vol 40 (2) ◽  
Author(s):  
Thays Lemos Uchôa ◽  
Sebastião Elviro de Araújo Neto ◽  
Pablo Oliveira Selhorst ◽  
Maria Júlia da Silva Rodrigues ◽  
Robson de Oliveira Galvão
Keyword(s):  
Sandy Loam ◽  
Block Design ◽  
Quadratic Function ◽  
Maximum Point ◽  
Clay Loam ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Loam Soil ◽  
Yellow Passion Fruit

Abstract The aim of this work was to evaluate the effect of mulch on clay loam and sandy loam soils on the start harvest, number of fruits per plant, yield and quality of yellow passion fruits in organic crop. A complete randomized block design with five treatments and four replicates of five plants each was used. Treatments corresponded to different percentages of mulch of the area occupied by the plant (3 x 3 m), extending from the center of the planting line to the planting row in 0% without mulch (T1); 25% (T2); 50% (T3); 75% (T4) and 100% (T5). Mulch anticipated the harvest in comparison to crop in uncovered soil in both types of soil. The number of fruits per plant and yield increased in a quadratic function with maximum point of 38.6 fruits plant-1 and 5,182.0 kg ha-1 with 75.7% and 78.0% of soil cover, respectively. Mulch on clay loam soil did not provide increase in the average fruit mass and did not change the quality of fruits in relation to control fruits.

scholarly journals Organic foliar fertilizer to improve yield of cayenne pepper (Capsicum frutescens L.) grown off-season

2021 ◽  
Vol 306 ◽  
pp. 01016
Author(s):  
I Komang Damar Jaya ◽  
I Wayan Sudika ◽  
Mery Windarningsih ◽  
Mulat Isnaini
Keyword(s):  
Sandy Loam ◽  
Block Design ◽  
Growth And Yield ◽  
Capsicum Frutescens ◽  
Harvest Time ◽  
Dry Land ◽  
Foliar Fertilizer ◽  
Randomized Block Design ◽  
Flower Abortion ◽  
Loam Soil

Information on the most suitable and high-yielding cayenne pepper variety for an off-season growing in dryland is important. This research aimed to examine the effect of foliar fertilizer on growth and yield of off-season cayenne pepper in dry land. The experiment was conducted during the rainy season of 2020/2021 in a dryland with a sandy loam soil texture in the area of Gumantar, North Lombok, Indonesia. Four cayenne pepper varieties, namely Dewata 43 F1, Pelita F1, Taruna, and Sret, were treated with three concentration levels (0%, 0,5%, and 1,0%) of organic foliar fertilizer. The treatments were arranged in a factorial randomized block design with three replications. The results revealed that application of foliar fertilizer increased number of flowers and yield, and reduced flower abortion. Pelita F1 yielded the highest, 11.5% higher than Dewata 43 F1 and three-fold higher than that of the non-hybrid varieties when treated with 1.0% of fertilizer. Dewata F1 was harvested at 70 days after transplanting (dat), followed by 76, 105 and 105 dat for Pelita F1, Sret and Taruna, respectively. To maximize the use of the rainfall and prolong the harvest time, Pelita F1 and Taruna varieties are highly recommended for dryland areas.

scholarly journals Effect of biofertilizers and phosphorus on growth parameters and yield of Cowpea (Vigna unguiculata (L.) Walp.) in sandy loam soil of Prayagraj

2021 ◽  
Vol 22 (1&2) ◽  
pp. 137-141
Author(s):  
Jayshree K. ◽  
Umesha C.
Keyword(s):  
Field Experiment ◽  
Growth Parameters ◽  
Sandy Loam ◽  
Block Design ◽  
Growth Parameter ◽  
Dry Weight ◽  
Sandy Loam Soil ◽  
Phosphate Solubilizing Bacteria ◽  
Randomized Block Design ◽  
Loam Soil

A field experiment was carried out during Kharif, 2020 at Crop Research Farm, Department of Agronomy, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (U.P) on sandy loam soil to assess the effect of biofertilizers and phosphorus on growth parameters and yield of Cowpea. The design of field experiment was Randomized block design consisting of ten treatments each replicated thrice. Experimental results showed significant increase in growth parameter viz., Plant height (81.09 cm), number of branches (4.87), number of nodules (53.27), plant dry weight (30.43 g/plant), crop growth rate (12.59 g/m2/plant) and yield attributing parameters viz., pods/plant (14.73), seeds/ pod (8.85), 100-seed weight (8.02 g), seed yield (2.62 t/ha) and biological yield (9.07 t/ha) were recorded with dual inoculation of Phosphate Solubilizing Bacteria and Vesicular Arbuscular Mycorrhiza along with 55 kg phosphorus per hectare.

Effect of Bio and Organic Fertilizers on Pumpkin's (Cucurbita pepo L.) Leave Content of N, P, and K

2020 ◽  
Vol 10 (1) ◽  
pp. 241-245
Author(s):  
Ammar Hameed Madi ◽  
Jawad A. Kamal Al-Shibani
Keyword(s):  
Cucurbita Pepo ◽  
Sandy Loam ◽  
Block Design ◽  
Organic Fertilizers ◽  
Flowering Stage ◽  
College Of Agriculture ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Loam Soil ◽  
Four Levels

This study was conducted to investigate the effect of bacterial bio-fertilization A. chroococcum and P. putide and four levels of compost (0, 1, 2, 3) tons.h-1 on the leaves content of N.P.K elements. The experiment was carried out in one of the greenhouses of the College of Agriculture - University of Al-Qadisiyah during fall season 2018-2019. It designed in accordance with the Randomized Complete Block Design (RCBD) with three replicates in sandy loam soil. The means of treatments were compared with the least significant difference (LSD) at (5)% probability level. The results present that the treatments of A. chroococcum, P. putide and compost at (3) tons.kg-1 significantly increases the leaves content of K.P.K compared to all other treatments in the flowering stage (4.970, 0.5000, and 4.930) mg.kg-1, respectively. This treatment was followed by the effect of the treatment of A. chroococcum and compost at (3) tons.kg-1, which increases the values of all traits except the leaf content of (P). Bio-fertilizer with P. putide + A. chroococcum significantly increases the leaves' content of P.

scholarly journals Insect Control on Flue-Cured Tobacco with Systemic Insecticides, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 258-259
Author(s):  
Paul J. Semtner ◽  
William B. Wilkinson III
Keyword(s):  
Agricultural Research ◽  
Sandy Loam ◽  
Block Design ◽  
Calculated Data ◽  
Sooty Mold ◽  
Systemic Insecticides ◽  
Loam Soil ◽  
Extension Center ◽  
Water Treatments ◽  
The Impact

Abstract This experiment was conducted to evaluate various systemic insecticides applied as soil or transplant water treatments followed by foliar applications of Orthene for TA and TFB control on fluecured tobacco and to determine the impact of treatment on tobacco yield and price. The experiment was conducted at the VPI & SU Southern Piedmont Agricultural Research and Extension Center, Blackstone, VA. Eleven treatments and an untreated control were established in a randomized complete block design with 4 replications. Plots, 4 × 40 ft (1 row × 24 plants), were separated by single guard rows. Pretransplant soil treatments of most liquid formulations were applied broadcast with a CO2-pressurized tractor sprayer that delivered 30.4 gal/acre at 40 psi through 8003LP tips on 29 Apr (Ambient temperature, 85-89°F, soil temperature, 75°F; soil pH, 5.8; OM, 2%). Treatments were immediately incorporated by double disking. The Furadan and Temik treatments were applied during bed formation and immediately covered with 6 to 8 inches of soil on 17 May. Furadan 4F was diluted 50:50 in water and applied in a narrow stream (&lt; 1-inch wide) in the row using a peristaltic pump. Temik was applied in a 14 inch band using a tractor mounted- Gandy granular applicator. The soil moisture was good for both the pretransplant soil and bedding treatments. ‘K-326’ flue-cured tobacco was transplanted into experimental plots in a Chesterfield-Mayodan-Bourne sandy loam soil on 18 May. A measuring cup was used to apply transplant water (TPW) treatments of Orthene and Admire in 4 fl oz/plant (204 gal/acre) at the base of each plant in the treatment plots. Virginia Cooperative Extension recommendations were followed for production of the crop. Foliar applications of Orthene and Dipel were applied on 6 Jul with a CO2-pressurized backpack sprayer that delivered 30 gal/acre through 3 TX-12 tips at 60 psi. TA populations were estimated on the upper 4 leaves of 10 plants/plot about once a week from 5 to 11 wk after transplanting. On 25 Aug, TA damage was rated on a scale of 0 to 10 where 0 = no aphid damage or sooty mold and 10 = very severe necrosis of leaves and extensive sooty mold. TFB and TFB feeding holes in the most damaged leaf were counted on 10 plants/ plot. Tobacco was harvested as it ripened, weighed, graded by a USDA/AMS inspector, and yield and price were calculated. Data were analyzed by ANOVA and significantly different means were separated by WD (K-ratio = 100). Aphid count data were transformed to Log10(x + 1) before analysis.

scholarly journals Impact of Wheat Residue on Soil Erosion Processes

2018 ◽  
Vol 46 (2) ◽  
pp. 553-562 ◽  
Author(s):  
Ataollah KAVIAN ◽  
Leila GHOLAMI ◽  
Maziar MOHAMMADI ◽  
Velibor SPALEVIC ◽  
Moghadeseh FALAH SORAKI
Keyword(s):  
Soil Erosion ◽  
Water Conservation ◽  
Soil Conservation ◽  
Rainfall Intensity ◽  
Sandy Loam ◽  
Sediment Concentration ◽  
Runoff Coefficient ◽  
Northern Iran ◽  
Erosion Processes ◽  
Loam Soil

Soil erosion is one of the key challenges in soil and water conservation. Vegetation that covers soil and organic and inorganic mulch is very useful for the control of erosion processes. This study examined treatment with wheat residual (as agriculture mulch) on infiltration, time to runoff, runoff coefficient, sediment concentration and soil erosion processes. The study has been conducted for sandy-loam soil taken from summer rangeland (Northern Iran) with simulated rainfall intensities of 50 and 100 mm h-1. The experiment was conducted in slopes of 30% in three replications with two amounts of wheat residual of 50 and 90 %. The results showed that conservation percent of soil erosion for wheat residual 50 and 90% was 61.68 and 73.25%, respectively (in rainfall intensity of 50 mm h-1). Also, the conservation percent of soil erosion for wheat residual of 50 and 90% cover was 70.68 and 90.55, respectively (in rainfall intensity of 100 mm h-1). It was concluded that the conservation treatments could reduce runoff coefficient, sediment concentration and soil erosion and increase the time to runoff and infiltration coefficient. This effect was significant on time for infiltration, sediment concentration and soil erosion variables (R2=0.99), time to runoff and runoff coefficient variables (R2=0.95). The interaction effects of rainfall intensity and soil conservation was significant for sediment concentration and soil erosion variables (R2=0.99).

MACRONUTRIENTS ABSORPTION AND DRY MATTER ACCUMULATION IN GRAIN SORGHUM

2018 ◽  
Vol 17 (1) ◽  
pp. 15
Author(s):  
IRAN DIAS BORGES ◽  
ELAINE CRISTINA TEIXEIRA ◽  
LORENA MARTINS BRANDÃO ◽  
ANTÔNIO AUGUSTO NOGUEIRA FRANCO ◽  
MARCOS KOITI KONDO ◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Dry Matter ◽  
Sandy Loam ◽  
Block Design ◽  
Grain Sorghum ◽  
Semiarid Region ◽  
Dry Matter Accumulation ◽  
Sigmoidal Function ◽  
Randomized Block Design ◽  
Red Latosol

ABSTRACT - The present study aimed to determine the curves of macronutrients and dry matter accumulation in grain sorghum DKB 599, grown in a semiarid region. A field experiment was conducted on a sandy loam eutrophic red Latosol (Oxisol) in Janaúba, State of Minas Gerais (MG), Brazil, in a randomized block design with four replications. As statistical method, a nonlinear regression, sigmoidal function with three parameters was used. After drying, the plants were weighed and ground to determine N, P, K, Ca, Mg and S concentration. Grain sorghum plants accumulate nutrients in their shoots in the following order: N> K> Ca> P> Mg> S. The highest concentrations of K and N were observed in stems and grains, respectively. In the conditions of this experiment, the most favorable time to perform nitrogen and potassium topdressing fertilization is when the plants present seven fully expanded leaves or 24 days after the emergency (DAE). Keywords: fertilization, growth, nutrition, Sorghum bicolor. ABSORÇÃO DE MACRONUTRIENTES E ACÚMULO DE MATÉRIA SECA NO SORGO GRANÍFERO RESUMO - Este trabalho teve como objetivo determinar as curvas de acúmulo de matéria seca e macronutrientes no sorgo DKB 599 cultivado em região semiárida. O experimento foi conduzido em campo sobre um Latossolo Vermelho eutrófico, de textura franco-argilosa, no município de Janaúba-MG, Brasil, em delineamento experimental de blocos casualizados, com quatro repetições. Utilizou-se o modelo de regressão não linear, função sigmoidal com três parâmetros como método estatístico. Após secagem, cada parte da planta foi pesada e moída para, em seguida, determinarem-se os teores de N, P, K, Ca, Mg e S. As plantas de sorgo granífero acumulam nutrientes em sua parte aérea na seguinte ordem: N > K > Ca > P > Mg > S. As maiores concentrações de K e N foram observadas, respectivamente, nos caules e nos grãos. Nas condições de condução do experimento, a época mais propícia para realizar a adubação nitrogenada e potássica em cobertura é quando as plantas apresentam sete folhas totalmente expandidas ou 24 dias após a emergência (DAE). Palavras-chave: fertilização, crescimento, nutrição, Sorghum bicolor.

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