scholarly journals Nutrient requirement, canopy development and fruit yield of high density guava (Psidium guajava L.) production in subtropics of Northern Karnataka

2019 ◽  
Vol 11 (2) ◽  
pp. 440-444
Author(s):  
Mushtaq ◽  
A. R. Kurubar  ◽  
M. R. Umesh ◽  
Shekharagouda Patil ◽  
Ashok Hugar
Keyword(s):  
Foliar Application ◽  
Nutrient Use Efficiency ◽  
Farmyard Manure ◽  
Psidium Guajava ◽  
High Density ◽  
Fruit Yield ◽  
Area Index ◽  
Nutrient Requirement ◽  
Organic Manures ◽  
Canopy Volume

Nutrient requirement for guava under high density planting is much higher than normal planting. Combined application of organic manures and chemical fertilizers will enhance nutrient use efficiency. The field experiment was carried out at Raichur, Karnataka, India during 2017 to standardize rate of fertilizers and organic manures for Guava (Psidium guajava L.)  cv. Allahabad safeda under high density planting. Treatments consists of application of fertilizers for normal planting compared with 100:40:75 g NPK/plant as recommended dose of fertilizers (RDF), 75% and 50% of high density planting (HDP) along with 25 kg farmyard manure, organic manure alone and foliar application of urea @ 1 % at 2,3 and 4 months after pruning. Results indicated that application of NPK@ 235: 118: 120 g per plant as per the RDF for HDP along with 25 kg FYM has resulted in taller plants, plant spread E-W as well as N-S directions, canopy volume and leaf area index. Higher fruits/plant, average fruit weight, fruit diameter, fruit length, fruit yield per plant and fruit yield (48.58 t ha-1) was recorded by application of NPK@ 235: 118: 120 g per plant same as that of HDP along with 25 kg FYM. Application of 50 % of HDP recommendation along with foliar application of urea @ 1% at 2, 3 and 4 months after pruning and 25 kg FYM was also found effective in achieving higher fruit yield of guava.

scholarly journals ‘Ray Ruby’ Grapefruit Affected by Huanglongbing II. Planting Density, Soil, and Foliar Nutrient Management

HortScience ◽  
2020 ◽  
Vol 55 (9) ◽  
pp. 1420-1432
Author(s):  
Dinesh Phuyal ◽  
Thiago Assis Rodrigues Nogueira ◽  
Arun D. Jani ◽  
Davie M. Kadyampakeni ◽  
Kelly T. Morgan ◽  
...  
Keyword(s):  
Growth Parameters ◽  
Quantitative Polymerase Chain Reaction ◽  
High Density ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Planting Density ◽  
Nutrient Concentrations ◽  
Trunk Diameter ◽  
Canopy Volume ◽  
Foliar Nutrient

Since the arrival of Huanglongbing (HLB) disease in Florida, several management approaches, including modification of orchard architecture design and nutritional therapy, have been explored. High-density plantings anticipate early economic returns from HLB-affected orchards. With no cure available for HLB, balanced nutrient application through soil and foliar spraying can mitigate the disease. A 2-year study was conducted to investigate the effects of three grapefruit (Citrus paradisi) planting densities [single-row (300 and 440 trees per ha), and double-row high-density (975 trees per ha)], two controlled-release fertilizer (CRF) blends, and foliar-applied micronutrients (FAM) (a blend of B, Mn, and Zn at 0, 1.5, 3, and 6 times the recommended rates) on grapefruit growth and fruit yield, physiological parameters, and foliar nutrient concentrations in an HLB-affected orchard. All the trees tested positive for HLB based on real-time quantitative polymerase chain reaction (qPCR) test. The highest planting density resulted in the lowest trunk diameter and canopy volume. Despite lower yield per tree in 2019–20, 975 trees per ha planting induced the greatest fruit and solid yields per ha. Also, the fruit produced from 975 trees per ha planting tended to be acidic with the deposition of more soluble solids. Use of CRF with higher micronutrients increased canopy volume with the expense of reduced fruit number in 2019–20. FAM did not affect cycle threshold (Ct) value and tree growth parameters. Fruit yield, photosynthesis rate, and stomatal conductance (gS) decreased, and all leaf nutrient concentrations except B increased in 2019–20 with all FAM rates tested. In conclusion, our study showed that high-density planting optimizes yield under HLB-endemic conditions. In addition, supplemental soil and foliar micronutrient application do not enhance yield of HLB-affected trees over a 2-year timeframe, warranting further research for confirmation of results.

scholarly journals Influence of organic manures and biofortification of selenium on growth, yieldand selenium contentof cucumber (Cucumis sativus L.)

2021 ◽  
pp. 88-92
Author(s):  
S FOWMINA
Keyword(s):  
Tamil Nadu ◽  
Foliar Application ◽  
Growth Parameters ◽  
Block Design ◽  
Farmyard Manure ◽  
Growth Yield ◽  
Fruit Weight ◽  
Leaf Length ◽  
Cucumis Sativus L ◽  
Organic Manures

Field experiment was conducted to study the influence of organic manures and biofortification of selenium on growth, yield and selenium contentof cucumber (CucumissativusL.) during 2019 at Koneripalayam village in Perambalur district, Tamil Nadu. The popular variety Green Long suitable for this region was used for the present study. The experiment was carried out during two seasonsviz., Season I (February-May) and Season II (July-October)in randomised block design with fifteen treatments and three replications. The results of the experiment revealed that application of 25 tFYM ha -1 and 2 kg CBF ha -1 along with foliar application of Se (20 µg L-1) significantly recorded the highest vine length (209.1 cm and 214.6 cm), number of leaves (108.2 and 113.7), leaf length (15.7 cm and 15.9 cm) and leaf breadth (16.2 cm and 16.5 cm) in first and second season, respectively. The highest number of fruits per vine (13.3 and 16.5), fruit length (19.6 cm and 20.8 cm), fruit girth (17.1 cm and 18.2 cm), mean single fruit weight (78.1 g and 81.2 g), fruit yield vine-1 (723.5 g and 1009.2 g)and selenium content per fruit (8.1 µg kg-1 and 10.6 µg kg-1) in first and second season respectively was obtained with1 t EM ha -1 + 2 kg CBF ha -1 + Se (20 µg L-1) as foliar application. Among all the organic manures, farmyard manure was proved to be superior in respect of growth parameters and enriched manure in respect of yield parameters. The foliar application of selenium was found to be the best method of its supplementation in plants and relatively higher values of Se content in fruits were noted with higher dose of Se as folior application.

scholarly journals EFFECT OF ORGANIC MANURES AND BIOFORTIFICATION OF SELENIUM ON PHYSIOLOGICAL AND FLOWERING PARAMETERS OF CUCUMBER (CUCUMIS SATIVUS L.)

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
S. Fowmina Sulaiha ◽  
A. Anburani ◽  
A. Anburani ◽  
A. Anburani
Keyword(s):  
Cucumis Sativus ◽  
Foliar Application ◽  
Farmyard Manure ◽  
Male Flower ◽  
Female Flower ◽  
Sodium Selenate ◽  
Flower Number ◽  
Cucumis Sativus L ◽  
Node Number ◽  
Organic Manures

A field experiment was carried out to study the “Effect of organic manures and biofortification of selenium on physiological and flowering parameters of cucumber (Cucumis sativus L.). The study was conducted during two seasons viz., Season I (FebruaryMay 2019) and Season II (July-October 2019). The experiment was carried out following the principles of randomized block design with fifteen treatments which were replicated thrice. The organic manures used in the experiment were farmyard manure (25 t ha-1), enriched manure (1 t ha-1) along with consortium of biofertilizers (2 kg ha-1). The selenium in the form of sodium selenate (Na2 SeO4 ) was used at varying concentrations (5, 10 and 20 µg L-1) as soil and foliar application. The physiological parameters viz.,chlorophyll content index and dry matter production per plant were recorded the highest in which EM @ 1 t ha -1 + CBF @ 2 kg ha -1 + Se (20 µg L -1) as foliar was applied. The flowering parameters viz., days to first male flower appearance, node number of first male flower, number of male flowers per vinewere found to be minimum in the treatment that received FYM @ 25 t ha-1 + CBF @ 2 kg ha-1 + Se (20 µg L-1) as foliar application. The days to first female flower appearance, node number of first female flower, number of female flowers per vine, fruit set percentage andsex ratio were observed to be superior in the treatment that received EM @ 1 t ha-1 + CBF @ 2 kg ha-1 + Se (20 µg L-1) as foliar application in both the seasons respectively.

scholarly journals Grapefruit Production in Open Hydroponics System

Horticulturae ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. 50
Author(s):  
Rhuanito S. Ferrarezi ◽  
Thiago A. R. Nogueira ◽  
Arun D. Jani ◽  
Alan L. Wright ◽  
Mark A. Ritenour ◽  
...  
Keyword(s):  
Plant Density ◽  
Irrigation System ◽  
Titratable Acidity ◽  
Fertilizer Application ◽  
High Density ◽  
Fruit Yield ◽  
Tree Planting ◽  
Higher Plant ◽  
Trunk Diameter ◽  
Canopy Volume

Conventionally managed citrus orchards can be modified to incorporate advanced horticultural practices such as higher plant density and efficient water and fertilizer application known as open hydroponics system (OHS) to increase productivity under Huanglongbing (HLB) endemic conditions. A field study was conducted from 2013 to 2018 to evaluate the effect of an OHS on “Ray Ruby” grapefruit (RR) production under HLB-endemic conditions. We tested a combination of different rootstocks [Sour orange (RR/SO) and US-897 (RR/897)], tree planting densities [standard (STD, 358 trees per ha) and high density staggered (HDS, 953 trees per ha)], fertilization methods (dry granular—dry and fertigation—fert), and irrigation systems (double driplines—DD and microsprinkler—MS), arranged in five treatments: RR/SO_STD_dry_MS, RR/SO_HDS_fert_DD, RR/897_HDS_fert_MS, RR/897_HDS_fert_DD, and RR/SO_HDS_fert_MS. All trees were infected by Candidatus Liberibacter asiaticus five years after planting. Trunk diameter and canopy volume increased over time and were higher under RR/SO_STD_dry_MS compared to other treatments. Total fruit number increased in 2016/17 compared to other seasons; however, 65% of fruit were classified as small (<100 mm). Fruit produced under RR/897_HDS_fert_DD had the highest amount (79%) of adequate size fruit (100–117 mm) compared to other treatments. Fruit yield was similar for both rootstocks planted at HDS using DD and MS fertigation, and 67% higher than the standard treatment (RR/SO_STD_dry_MS). Soluble solid contents (SSC), titratable acidity, and SSC-to-titratable acidity ratio were not affected by the treatments. HDS planting resulted in higher fruit yield, irrespective of rootstock and irrigation system, representing an important advance in grapefruit production. Overall, our results demonstrated that production of grapefruit in high-density using OHS can be used by citrus growers who aim to make the best water and fertilizer management under HLB-endemic conditions.

scholarly journals Effect of raised bed, mulching and fertigation on productivity and quality of guava (Psidium guajava L.) under high density planting system

2021 ◽  
Vol 42 (5) ◽  
pp. 1387-1394
Author(s):  
K.K. Srivastava ◽  
◽  
P. Barman ◽  
P. Patil ◽  
D. Kumar ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Nutrient Use Efficiency ◽  
High Density ◽  
Growth And Yield ◽  
Subtropical Climate ◽  
Soil Application ◽  
Canopy Volume ◽  
Use Efficiency ◽  
Raised Bed ◽  
Planting System

Aim: Increasing the input use efficiency by planting of guava on raised bed, mulched with black polythene sheet along with fertilizer application through drip and foliar spray of micro-nutrients (zinc and boron). Methodology: Experiment was carried out during 2015-2019 for mrig bahar crop in Lalit guava planted at 3 × 3 m spacing in ICAR-CISH, Lucknow with 5 different treatments (T1 = Raised bed +drip irrigation @ 80% PE + fertigation @ 75% RDF + mulching with 100µ black polythene + micro-nutrient spray in July and August @ 0.2% each of zinc sulphate and boric acid, T2 = Raised bed + drip irrigation + fertigation + mulching, T3 = Raised bed + drip irrigation + fertigation + micronutrient sprays, T4 = Raised bed + drip irrigation +micro-nutrient sprays + soil application of RDF @ 50:25:50 g N:P:K, T5 / control = Flat bed + soil application of RDF + basin irrigation). Results: Canopy volume, trunk-cross sectional area and yield were significantly increased in T1, which could be attributed to better microclimate in root zone, resulting in improved growth and yield. Interpretation: The findings of this research have generated the technique of improving space, water and nutrient use efficiency under high density planting system of guava cv. Lalit in subtropical climate which will help the guava growers for sustaining quality production.

scholarly journals ‘Ray Ruby’ Grapefruit Affected by Huanglongbing I. Planting Density and Soil Nutrient Management

HortScience ◽  
2020 ◽  
Vol 55 (9) ◽  
pp. 1411-1419
Author(s):  
Dinesh Phuyal ◽  
Thiago Assis Rodrigues Nogueira ◽  
Arun D. Jani ◽  
Davie M. Kadyampakeni ◽  
Kelly T. Morgan ◽  
...  
Keyword(s):  
Citrus Sinensis ◽  
Nutrient Management ◽  
Soil Nutrient ◽  
High Density ◽  
Fruit Yield ◽  
Poncirus Trifoliata ◽  
Tree Planting ◽  
Planting Density ◽  
Citrus Paradisi ◽  
Canopy Volume

Huanglongbing (HLB), or citrus greening disease, affects practically all fruit-bearing trees in commercial citrus orchards in Florida with no cure identified yet. High-density plantings and enhanced nutritional programs such as application of controlled-release fertilizer (CRF) with higher micronutrient levels can mitigate disease symptoms and extend the tree life span of sweet oranges (Citrus sinensis). The objective of this study was to evaluate the effects of tree planting density and application of CRF blends differing in N to K ratio and micronutrient content on grapefruit (Citrus paradisi) plant health, canopy volume, fruit yield, and fruit quality in an HLB-affected orchard. A study was conducted in Florida for two growing seasons (2017–18 and 2018–19) to evaluate the response of ‘Ray Ruby’ grapefruit on Kuharske citrange (Citrus sinensis × Poncirus trifoliata) to three planting densities (300, 440, and 975 trees per ha) and two CRF blends [12 nitrogen (N)–1.31 phosphorus (P)–7.47 potassium (K) and 16N–1.31P–16.6K] with different nutrient sources and composition. According to quantitative real-time polymerase chain reaction testing, all sampled trees tested positive for Candidatus Liberibacter asiaticus, the pathogen associated with HLB. Trees planted at 975 trees per ha had 33% lower canopy volume per tree but 160% greater fruit yield per hectare and 190% higher yield of solids compared with 300 trees per ha. Fruit produced in high-density planting (975 trees per ha) was 18% more acidic with higher soluble solid compared with low-density planting (300 trees per ha). The use of a CRF blend with higher amounts of micronutrients along with lower K increased canopy volume in both seasons and resulted in 24% and 29% reduction in fruit yield per hectare and yield of solids, respectively, in 2017–18. Our results indicate that high-density plantings increase fruit yield per area, and regardless of the N to K ratio, the use of CRF blends supplemented with micronutrients may not increase fruit yield in HLB-affected grapefruit.

scholarly journals Response of NPK fertigation on pheno-physiological status of Citrus sinensis Osbeck cv. Mosambi under high density planting

2016 ◽  
Vol 8 (3) ◽  
pp. 1306-1311
Author(s):  
Vishal Nirgude ◽  
K. Karuna ◽  
Abhay Mankar ◽  
Vikash Kumar ◽  
Maggidi Spandana
Keyword(s):  
Leaf Area ◽  
Drip Irrigation ◽  
Citrus Sinensis ◽  
High Density ◽  
Physiological Status ◽  
Area Index ◽  
Current Season ◽  
Full Dose ◽  
Bud Emergence ◽  
Canopy Volume

The field experiment was conducted during 2013-14 to study the effects of fertigation on the phenology and physiological status of Citrus sinensis cv. Mosambi. The experiment was laid out in randomized block design with seven fertigation level, viz. T1- 120% of RDF; T2- 100% of RDF; T3- 80% of RDF; T4- 60% of RDF; T5- 40% of RDF; T6- Full dose in basal with drip irrigation and T7- Full dose in basal without drip irrigation and each treatment were replicated three times. Results obtained showed that increase in plant height (36.75 cm), trunk girth (4.67 cm), canopy volume (1.83 m3), leaf area index (5.51) and growth of current season shoot (9.42 cm2) of the plant were more responsive to higher dose of fertigation i.e. T1 followed by T2. The treatment effect was not marked on reproductive growth as expressed in terms of bud emergence, full bloom, fruit set and duration of bud emergence to maturity. The tree physiological parameters viz. total chlorophyll (2.65 mg/g), net photosynthesis rate (6.83 μmol CO2 /m2/sec), stomatal conductance (0.18 mol/m2/sec) and leaf area (31.9 cm2) were also higher under treatment receiving higher dose of fertigation i.e. T1. Therefore, on the basis of results obtained, treatment 120% RDF found superior in maintaining pheno-physiological status of mosambi plant under high density planting.

Foliar application and seed priming of salicylic acid affect growth, fruit yield, and quality of grape tomato under drought stress

2021 ◽  
Vol 280 ◽  
pp. 109904
Author(s):  
Remi Chakma ◽  
Arindam Biswas ◽  
Pantamit Saekong ◽  
Hayat Ullah ◽  
Avishek Datta
Keyword(s):  
Salicylic Acid ◽  
Drought Stress ◽  
Foliar Application ◽  
Seed Priming ◽  
Fruit Yield ◽  
Yield And Quality

scholarly journals Effect of Organic Manures on Growth, Rhizome Yield and Quality Attributes of Turmeric (Curcuma longa L.)

2012 ◽  
Vol 10 (1) ◽  
pp. 16-22 ◽  
Author(s):  
M. Z. U. Kamal ◽  
M. N. Yousuf
Keyword(s):  
Leaf Area ◽  
Dry Matter ◽  
Curcuma Longa ◽  
Dry Weight ◽  
Fresh Weight ◽  
Area Index ◽  
Yield Attributes ◽  
Organic Manures ◽  
Neem Cake ◽  
Yield And Quality

The investigation was carried out to evaluate the effect of different organic manures on turmeric with reference to vegetative growth, biomass production, rhizome yield and its attributes of turmeric (Curcuma longa L.). Turmeric showed better response to the application of organic manures. Plant with neem cake application had the taller plant (79.30 cm), maximum number of tillers per plant (5.40), leaf number (5.40), leaf area (44.09) leaf area index (0.429), fresh weight of halum ( 190.05g), fresh weight of root (49.13 g), fresh weight of rhizome per plant (256.21 g) and dry weight of halum (15.21g), dry weight of root (7.32 g), dry weight of rhizome per plant (40.35 g), total dry matter yield (6.85 t ha-1) than those received other types of manures. Moreover, yield attributes such as number of mother rhizomes per plant-1 (1.75), more number of primary rhizomes per plant-1 (5.19), secondary rhizomes per plant-1 (18.03) and tertiary rhizomes per plant (7.69) were also highly accelerated by neem cake application. Similarly, the same treatment expressed the best in terms of size of mother rhizome (7.69 cm), primary rhizome (21.86 cm) and secondary rhizomes (7.05 cm).All these parameters in cumulative contributed to  produce the highest estimated fresh rhizomes yield & cured rhizomes yield (29.48 t ha-1, 5.59 t ha-1 respectively). The highest curing percentage (20.28) was observed in T3 treatment having mustard cake@ 2.0 t/ha. Thus, organic manure like neem cake was best fitted natural fertilizer for turmeric cultivation.DOI: http://dx.doi.org/10.3329/agric.v10i1.11060The Agriculturists 2012; 10(1): 16-22

Sign in / Sign up

Export Citation Format

Share Document