Foliar Spray Of Urea Research Articles

Enhancing Rainfed Castor Growth, Seed, and Oil Yield Via Nano Urea Application

Aims: Conventional urea fertilizer has been critical in enhancing castor yields. However, nano urea, a game-changing technology in modern agriculture, provides a significant advancement in terms of sustainable and efficient crop production.
 Study Design: The experiment was conducted in a Randomized block design (RBD) with eight treatments and three replications.
 Place and Duration of Study: Tapioca and Castor Research Station in Yethapur during the Kharif season of 2022.
 Methodology: The major objective is to increase hybrid castor growth and production under rainfed circumstances by foliar application of nano urea. The castor hybrid YRCH 1 with an RDF of 60:30:30 NPK kg ha-1 was chosen for the study. The experimental details viz; T1 - 100% N through Urea –RDF, T2 - 50 % of recommended basal N + Nano urea foliar spray @ 2 ml/l at 30 and 60 DAS, T3 - 50 % of recommended basal N + 2 % Urea foliar spray at 30 and 60 DAS, T4 - 75 % of recommended basal N + Nano urea foliar spray @ 2 ml/l at 30 and 60 DAS, T5 - 75 % of recommended basal N+ 2 % Urea foliar spray at 30 and 60 DAS, T6 - 100 % of recommended basal N + Nano urea foliar spray @ 2 ml/l at 30 and 60 DAS, T7 - 100 % of recommended basal N + 2 % Urea foliar spray at 30 and 60 DAS.
 Results: According to the findings of the study, applying 100% of the recommended basal N + Nano urea foliar spray @ 2 ml/l at 30 and 60 DAS is advantageous to the crop and improves the growth and yield characteristics of hybrid castor under rainfed conditions. However, when compared to other treatments, foliar application of nano urea with 50% indicated basal N resulted in significantly lower growth and yield.
 Conclusion: The major objective is to increase hybrid castor growth and production under rainfed circumstances by foliar application of nano urea

Effect of foliar spray of nano urea and 2% urea on growth parameters which contribute to yield of safflower

The results from the present investigation showed that application of 100% nitrogen in the form of urea top dressing at vegetative stage and foliar spray of nano urea and 2% urea at reproductive stage improved the physiological parameters and yield of safflower. The growth parameters viz. leaf area index, relative growth rate, crop growth rate and net assimilation rate and seed yield recorded maximum values with 100% N application, while they reduced when the nitrogen dose was halved.

Response of safflower to foliar spray of nano urea

The objective of the present study was to investigate the effect of different rates of soil applied nitrogen (100% N, 75% N and 50% N) and foliar spray of nano urea and 2% urea (at flowering and seed filling stages) on growth and yield of safflower. The results showed that the effect of soil applied urea at vegetative stage and foliar applied urea at reproductive stage had significant effect on seed and biological yield (1581, 4249 kg/ha) of safflower and recorded maximum biological yield among given treatments.

Performance of mungbean in Response to zinc and iron through agronomic mechanism of biofortification

A field experiment was conducted at College of Agriculture, Agriculture University, Jodhpur in kharif season during 2020 and 2021 to study the effect of agronomic biofortification of zinc and iron on growth, yield and quality of mungbean (Vigna radiata (L.) Wilczek) varieties. The experiment was laid out in a split plot design, comprised with two varieties namely GM-7 and MH-421 and three treatments of foliar spray of iron (Fe) and urea in main-plots and four treatments included seed inoculation by zinc solubilizing bacteria with soil application of zinc (Zn) in a combinations were assigned to sub-plots. In this way, the experiment had twenty four treatment combinations were replicated thrice. Mung bean variety ‘MH-421’ had performed prominently with respect to all growth and yield parameters, while taller height was recorded under variety ‘GM-7’ during both the years as well as pooled basis of experimentations. Biofortified treatment of iron with urea spray and zinc significantly higher growth and yield attributes were recorded under treatment foliar spray of 0.5% Fe + 2% urea at flower initiation and pod formation stages and seed inoculation with ZSB + soil application of higher dose of zinc sulphate i.e. ZSB (SI) + 25 kg ZnSO4/ha, which remained at par with foliar spray of 0.5% Fe + 2% urea at flower initiation stage and ZSB (SI) + 20 kg ZnSO4/ha at 25, 50 DAS and at harvest stage of mungbean, respectively.

Effect of Nano Urea and Foliar Spray of Urea on Growth and Yield of Wheat (Triticum aestivum L.)

In pursuit of high yield today’s agriculture cultivars put the environment at greater risk by the inputs of chemical fertilizers. Using Nano urea we can minimize the inputs damage upto a certain extent. With this objective, field experiment was carried out during Rabi seasons of 2022-2023 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj, Uttar Pradesh on topic “Effect of nano urea and foliar spray of urea on growth and yield of wheat”. The treatment include two factors, Factor- 1 Nitrogen (50 %, 75%, 100%) and Factor- 2 Foliar Spray (2ml/L nano urea, 4 ml/L nano urea, 2% urea) and one control was laid out in Randomized Block Design (RBD) with 10 treatments and three replications. Result revealed that 100% nitrogen along with foliar spray of 4ml/L nano urea recorded significant effect on Growth, yield and yield parameters. Treatment 6 recorded maximum plant height (101.62 cm), dry weight (21.95 g) number of tillers/running row (85.02), number of effective tillers/m2 (340.08), number of grains/spike (54.16), test weight (48.52 g), grain yield (6.30 t/ha) and straw yield (7.98 t/ha).

Effect of Iron and Urea Application on Iron Biofortification of Lentil (Lens culinaris Medik.)

ABSTRACT Agronomic biofortification with iron (Fe) may be a viable approach to combat the widespread deficiency of Fe in humans. Thus, the present study was conducted to examine the effect of Fe and urea foliar application on Fe biofortification in lentil (Lens culinaris Medik.). The field experiments were conducted at two locations viz. Ludhiana and Faridkot, India. Different treatment combinations of foliar spray of sole Fe (0.5% of FeSO4.7 H2O), sole urea (2% urea), and combined application of Fe and urea at flowering, pod formation, and flowering + pod formation stages along with unsprayed control were applied to lentil. The results of the study revealed that the combined foliar application of Fe and urea at flowering + pod formation stages was the most effective in enhancing grain yield, Fe and zinc (Zn) concentration in plants (at flowering as well as pod formation stage), stover and grain (whole and split). The highest Fe concentration in whole (36% higher over control) as well as split (32.9% higher over control) grain and protein content (21% higher over control) was obtained with foliar application of Fe + urea at flowering + pod formation stages. Conclusively, the combined foliar application of 0.5% FeSO4.7 H2O and 2% urea at flowering + pod formation stages may prove to be a feasible option for increasing grain yield and enrichment of lentils with Fe and Zn to combat micronutrient malnutrition in human populations.

Studies on the Effect of Nano-Urea on Growth, Yield and Nutrient Use Efficiency in Transplanted Rice

Rice is a staple crop that feeds a large section of the world's population, and conventional urea fertilisers have played an important role in increasing rice yields. However, nano urea, a game-changing invention in modern agriculture, represents a big step forward in terms of sustainable and efficient crop production. The experiment was carried out at wetlands farm of Tamil Nadu Agricultural University, Coimbatore, during Navarai season, 2022 in a Randomized block design with eight treatments and three replications. The main objective is to enhancing the growth and yield of rice through foliar application of nano urea. The rice variety CO 55 was taken up for the study with the RDF of 150:50:50 NPK kg ha-1. The experimental details viz; T1 -100% recommended dose of nitrogen (RDN) (150 kg N) through urea (25% each at basal, AT, PI and heading stage), T2 - 100% RDN (150 kg N) through urea (50% as basal+ two top dressing 25% each at AT & PI), T3 - 50% RDN (75 kg N) through urea (basal only) , T4 - 50% RDN (75 kg N) through urea (basal only) + two foliar sprays of nano urea at 20th and 40th DAT, T5 -50% RDN (75 kg N) through urea (basal only) + three foliar sprays of nano urea at 20th, 40th and 60th DAT, T6 -25% RDN (37.5 kg N) through urea (basal only) + three foliar sprays of nano urea at 20th, 40th and 60th DAT, T7 -Foliar sprays of nano urea at 20th 40th and 60th DAT (no basal application), T8 -Control (0% N). Based on the experimental results show that, among the treatments the higher plant height, leaf area index and yield should be obtained in the T5 treatment ie; reduced basal nitrogen application as 50%, with nano urea foliar spray.

Influence of Super Nano Urea and Nano DAP on Growth Parameters of Rice Fallow Cotton under High Density Planting System

The experiment was carried out at wetlands farm, Tamil Nadu Agricultural University, Coimbatore, during summer, 2023 in a Randomized block design with ten treatments and replicated thrice. The main objective of this study is to find out the effect of varied dose of basal nitrogen & phosphorus and foliar application of conventional urea, super nano urea and nano DAP on rice fallow cotton under High Density Planting System (HDPS) on growth parameters. Cotton variety CO 17 was taken up for the study with RDF of 150:50:50 NPK Kg ha-1. The experimental details viz., T1- control (without N&P) K alone, T2- RDF (150:50:50 NPK Kg ha-1), T3- 50% RDN&P,100% K+ conventional urea @ 1% and nano DAP @ 0.5% at 25 DAS, T4- 50% RDN&P,100% K+ conventional urea @ 1% and nano DAP @ 0.5% at 25 DAS and 45 DAS, T5- 50% RDN&P,100% K+ SNU(Super Nano Urea) @ 0.25% and nano DAP @ 0.5% at 25 DAS (Days After Sowing) and 45 DAS, T6- 50% RDN&P,100% K+ SNU @ 0.25% and nano DAP @ 0.5% at 25 DAS, 45 DAS and 65 DAS, T7- 50% RDN&P,100% K+ SNU @ 0.5% and nano DAP @ 0.5% at 25 DAS and 45 DAS, T8- 25% RDN&P,100% K+ SNU @ 0.5% and nano DAP @ 0.5% at 25 DAS 45 DAS and 65 DAS, T9- 50% RDN&P,100% K+ SNU @ 1% and nano DAP @ 0.5% at 25 DAS, T10- 50% RDN&P,100% K+ SNU @ 1% and nano DAP @ 0.5% at 25 DAS and 45 DAS. The experimental results revealed that, among all the treatments, T10 significantly registered the increased plant height (112.33 cm) and highest leaf area index (4.11) and enhanced light interception (91%). Based on the experimental results, it is concluded T10 i.e., reduced application of basal nitrogen and phosphorus (50% RDN&P + 100% K) with super nano urea foliar spray @ 1% and nano DAP foliar spray @ 0.5% at 25 DAS and 45 DAS found to be the optimal dosage for increased growth parameters under high density planting system in rice fallow cotton.

Effect of Nitrogen Rates and Foliar Spray of Urea Application and Nano Urea on Yield and Economics of rabi Maize (Zea mays L.)

A field experiment was conducted during Rabi 2022 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P) to study the ”Effect of Nitrogen Rates and Foliar Spray of Urea Application and Nano Urea on Yield and Economics of rabi Maize (Zea mays L.)”effect of three nitrogen rates (50%, 75% and 100% RDN ) and three foliar spray of urea viz 20000 PPM (2%) and nano urea viz 2000 PPM (2 ml/L) and 4000 PPM (4ml/L) application on yield and economics of rabi maize (Zea mays L.). The soil of experimental plot was sandy loam texture, nearly neutral in soil reaction (pH 7.1), low in organic carbon (0.28%), available N (225kg/ha), available P (19.50) kg/ha) and available K (92 kg/ha). The experiment consists of 10 treatment, each being replicated thrice and laid out in Randomized Block Design. The results of present investigation revealed that the highest Grain yield (6.41 t/ha), Stover yield (8.65 t/ha), Harvest Index (42.58), Maximum gross return (INR 1,28266.67), Net return (81,682.75) and B:C ration (1.75) under 100% RDN +4000ppm (4 ml/l) spray of nano urea.

Effect of Nitrogen and Foliar Spray of Urea and Nano Urea on Growth and Yield of Rabi Maize (Zea mays L.)

A field experiment was conducted during Rabi 2022 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P) to study the “Effect of nitrogen and foliar spray of urea and nano urea on growth and yield of rabi maize (Zea mays L.)”, to study treatments consisting of three levels of Nitrogen viz. 50% RDN, 75% RDN and 100% RDN and three foliar sprays of nano urea viz. 2000 ppm (2ml/L), 4000ppm (4ml/L), and foliar spray of urea viz., 20000 ppm (2%). The soil of experimental plot was sandy loam in texture, nearly neutral in soil reaction (pH 7.1), low in organic carbon (0.28 %), available N (225 kg/ha), available P (19.50 kg/ha) and available K (92 kg/ha). There were 10 treatments each being replicated thrice and laid out in Randomized Block Design. The results revealed that at 60 DAS, treatment combination 100% RDN + 4000 PPM (4ml/L) spray of Nano Urea recorded significantly higher Plant Height (108.10cm), Plant Dry weight (61.20 g), Crop Growth Rate (14.67 g/m2/day), number of cobs per plant (1.60), number of grains per cob (249.67), Seed index (23.55 g), Grain yield (6.41 t/ha), Stover yield (8.65 t/ha) and Harvest Index (42.58 %) as compared to other treatments.

Effect of Nano Urea on growth, yield and nutrient use efficiency of Okra under tropical island ecosystem

The field experiment was conducted during 2021-22 at Garacharma, ICAR-CIARI, Port Blair to study the effect of nano urea (liquid) on the growth and yield of okra under island conditions. The treatment combinations consist of basal applications of fertilizers and foliar spray of nano urea in two concentrations (2 % and 4% concentrations). The results revealed that nano spray resulted in higher okra yield(9.6 %) than NPK addition through chemical fertilizers. While increased concentration of nano spray (4%) had significant impact on the growth and yield parameters due to increased availability of N within the plant system. Though Rs. 600- 1200 respectively were incurred as additional cost on account of application of nano spray (0.2 - 0.4%), the nano spray (N66 PK and 0.4 % Nano urea) contributes to additional okra yield (1.32 t ha-1, 9.6%), additional monetary benefit (Rs.65,561) than only NPK addition through chemical fertilizers (100 % RDF). Further, there is significant difference between Nano spray at 0.2 % and 0.4% spray though higher concentration of (0.4%) nano spray gave 7.5-16 % higher yield and 17- 29 % higher netreturn. Further, the increased efficiency of nano urea resulted in saving of nitrogen fertilizer to the extent of 25-34%. At the same time nano urea had no significant negative impact on soil properties and socio-root micro environment by the accumulation of excess mineral N. Hence, it can be concluded that spraying of nano urea is proved to be beneficial for island ecosystem as it lead to increased yield and saving of chemical fertilizer thereby reducing the accumulation of N in the environment.

Soil type and integrated nitrogen nutrient-rice straw residue management techniques affect soil microbes, enzyme activities and yield of wheat crop

Sporadic burning of rice straw and the particulate air pollution caused consequently have created a pressing need for identification of practical environmentally sound in situ rice residue management methods. However, the agronomic interventions associated with the agri-inputs particularly the type of nitrogen fertilizer source must be worked out for these interventions. In a two-year field study performed at two different locations representing sandy loam and clay loam soil types, zero tillage with application of nitrophosphate (applied as basal dose through drilling) in combination with urea (applied at 1st irrigation + 3 foliar sprays of urea at weekly interval) significantly enhanced the grain and straw yield of wheat. The soil microbial viable cell counts and dehydrogenase and urease enzyme activities were also recorded to be highest in this treatment indicating the occurrence of higher living microbial population. The treatment × response variable Principle component analysis (PCA) biplot depicted relative variation among the residue management treatments/Nitrogen fertilizer sub-treatments and the enzyme activities as response variables. A variation in the soil organic content components was recognized through Fourier transform infra-red spectroscopy (FT-IRS) studies. Irrespective of the soil types under study, the FT-IR spectra exhibited presence of the aromatic carbon functional groups in residue incorporated treatments as compared to the no residue incorporation treatment.

Effect of Added Urea Foliar Spray and Leaf Clipping on Growth and Yield Response of Mungbean

An experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka, during March to May 2018 to study the impact of added urea foliar spray and leaf clipping on growth and yield of mungbean. The experiment was laid out in Split-plot Design with three replications and composed of four levels of urea foliar spray viz. F0 = Recommended Fertilizer (RF) + No Foliar Spray (FS), F1 = RF + 1% Urea FS at Flower Initiation (FI), F2 = RF + 2% Urea FS at FI, F3 = RF + 3% Urea FS at FI and four levels of Leaf clipping viz. C0 = No leaf clipping, C1 = Clipping 1 basal leaf, C 2 = Clipping 2 basal leaves, C3= Clipping total apical leaves having no inflorescence. Results indicated that foliar spray and leaf clipping had significant effect on most of the growth and yield contributing parameters. In case of foliar spray of urea, the maximum plant height, nodules plant-1, highest above ground dry matter plant-1, pods plant-1, pod length, seeds pod-1, 1000 seed weight, seed yield, stover yield and biological yield were recorded from F0. In case of leaf clipping, all growth and yield attributes were recorded highest from C1. Regarding combined effect, the highest growth and yield parameters were recorded from the treatment combination of F0C1. So, F0 along with C1 is suggested for yield improvement in mungbean cultivation.
 Bangladesh Agron. J. 2022, 25(2): 57-65

Effect of Nano Urea Foliar Spray on Yield and Yield Attributes of Black Gram (Vigna mungo L.)

Foliar application of nano urea is a good option of nitrogen or a balanced dose of nitrogen to increase the yield of black gram. For that, this study was conducted to evaluate the performance of black gram (Vigna mungo L.) under two forms of nitrogen at the Bangladesh Institute of Nuclear Agriculture (BINA) sub-station experimental field, Chapainawabganj during September to December 2022. Black gram variety Binamash-2 and 3 treatments, viz. Control (no fertilizer) (T1), Farmers practice (recommended fertilizer application as basal dose and top dressing during active growth) (T2) and Nano urea (2-4 ml of nano urea (4 % N) in one litre of water and sprayed on crop leaves at its active growth stages) (T3) were used under randomized block design. Yield and yield contributing characters were significantly affected by different forms of nitrogen (urea). The highest grain yield was obtained with T3 which was 1587.33 kg per hectare whereas T1 had given the lowest yield (983.33 kg per hectare). It was obvious that grain yield of black gram can be increased substantially with the judicious application of nano urea as foliar spray during active growth stages.

Effect of Application of Nano-urea on Maize (C-1415 Variety) Growth and Yield under Punjab Conditions

To meet the increasing demand for food due to the increasing population, nitrogen fertilizers are being used extensively. Uncontrolled use of nitrogen leads to decreased soil health along with polluting the environment. Maize is one of the important crops in the rainfed regions of Punjab. Therefore, there is a need to optimize the usage of nitrogen fertilizers and that’s where nano fertilizers come in. The current investigation was conducted in an RBD (Randomized block design) with 9 treatments and 3 replications. The study showed that the application of 75 % RDN + foliar spray of nano urea 0.1% at knee high and tasseling stage gave superior results concerning growth and yield attributes in kharif maize. However, since the application of 75 % RDN + 2 foliar spray of nano urea at knee high and tasseling stage was significantly at par with a full doze of RDN, therefore this might be an appropriate management alternative for sustainable cultivation practice of maize.

Growth and yield of herbage coriander as influenced by foliar spray of urea

Growth and yield of herbage coriander as influenced by foliar spray of urea

Response of N P S doses and urea foliar spray on lentil under guava (Psidium guajava) + lentil (Lens culinaris) based agri-horti system

An experiment was conducted at research farm of Rajiv Gandhi South Campus, Barkachha, Mirzapur situated in eastern Uttar Pradesh during winter (rabi) season of 2021–22 with the objective to study the response of nitrogen, phosphorous, sulphur doses and urea foliar spray on lentil growth attributes, yield attributes, yield and economics under guava + lentil based agri-horti system. Results revealed that the higher growth, yield attributes, yield, net monetory returns and benefit-cost ratio were recorded under N23.5+P60+S40 which was at par with N20+P50+S30. In case of varied doses of foliar spray of urea, foliar spray of 2% urea at pre-flowering stage fb 2% urea at pod initiation stage recorded significantly higher growth, yield, yield attributes and economics which was at par with foliar spray of 2% urea spray at pre-flowering stage. Moreover, between the sowing of the lentils and the harvest, the guava's growth attributes were also increased. Therefore, under rainfed conditions of Vidhyan region of eastern Uttar Pradesh, application of nitrogen, phosphorus and sulphur @20, 50 and 30 kg/ha as basal application along with foliar application (spray) of 2% urea at pre-flowering stage (45 DAS) to lentil crop was found to be better option for higher profitability under guava plantation.

Yield performance of normal and late sown wheat in response to seed priming and foliar applied nutrients

An investigation was carried out to determine the impact of seed priming i.e. non-primed and primed seed with 2.0% KCl for 12 hr and twice foliar nutrition i.e. no spray, 0.5% ZnSO4, 0.5% CaCl2, 0.5% KNO3, and 2.0% urea on yield execution of normal sown (November 28) and late sown (Late sown) wheat. The results revealed that in both years of study, wheat planted on November 28 produced significantly higher grain yield with a comparable difference in number of spikes per square meter, spike length, number of fertile spikelets per spike, number of grains per spike, and 1000-grain weight. There was 23.0% and 24.0% decrease in grain yield for the late sowing on Late sown when compared with normal sowing on November 28 in first year and second year, respectively. Primed seeds were not significantly impacted in comparison to the non-primed seed. In contrast with no spray, spraying of various nutrients twice at maximum tillering and 80% flowering recorded significant improvement in yield of wheat crop. Highest yields were recorded with a foliar spray of 2.0% urea followed by 0.5% ZnSO4, 0.5% KNO3, and 0.5% CaCl2. The significant interaction between sowing dates and foliar spraying demonstrates that foliar spray of urea at the rate of 2.0% and ZnSO4 at the rate of 0.5% at maximum tillering and 80% flowering stage were financially more reasonable choices for both the planting dates and can increase grain yield.

Growth and yield response of lowland rice (Oryza sativa L.) to planting density and nutrient management

Planting density and nutrient management practices may affect lowland rice production. This study was conducted to evaluate their effects on growth and yield of lowland rice (NSIC Rc400), determine the appropriate number of seedlings hill-1 and nutrient management for optimum yield, and assess their profitability on rice. A split-plot arranged in Randomized Complete Block Design was used with three replications. Planting densities (M1=1 seedling hill-1 and M2=3-5 seedlings hill-1) were designated as mainplots while nutrient management practices as subplots;T1=0-0-0 (Control), T2=120–60–60kg ha-1 N, P2O5, and K2O, T3=60–30–30kg ha-1 N, P2O5, and K2O + 2.5t ha-1 vermicast + biweekly foliar urea spray, T4=45–30–30kg ha-1 N, P2O5, and K2O + 2.5t ha-1 vermicast + weekly foliar urea spray, and T5=30–30–30kg ha-1 N, P2O5, and K2O + 2.5t ha-1 vermicast + weekly foliar urea spray. Results revealed that M1 produced more filled spikelets panicle-1 regardless of nutrient management. Early heading and maturity were noted at T1, T4, and T5 treatments. Integrated nutrient application at T3 significantly increased growth, and yield parameters of lowland rice with higher gross income and benefit-cost ratio, next to the recommended dose of inorganic fertilizer (T2). This was due to the high labor and material cost incurred with the integrated nutrient application. Highest net income and benefit-cost ratio were obtained with M1 and T2. Transplanting 1 seedling hill-1 with combined inorganic and vermicast application (T3) seemed appropriate for NSIC Rc400 especially if the farmer has his own vermicast production.

Effect of Foliar Application of GA3, NAA and Urea on Fruit Physiological Characterstics of Ber (Zizyphus mauritiana Lamk.) cv. Banarasi Karaka

Among subtropical fruits Ber (Zizyphus mauritiana L.) one of the most common fruit crop, grown under neglected soil types. It is a drought hardy and can grow under the most hazardous conditions of soil, water and climate and thus it has rightly been recommended for the arid and desert area of India [1]. It is found growing wild as well as in cultivated forms throughout the warmer regions up to an altitude of 1500 metres above Mean Sea Level. The experiment comprised 13 treatments consisting of foliar spray of GA3, NAA, Urea and control. The treatments are as follows- T0 Control (water spray), T1 (GA3 @10 ppm), T2 (GA3 @20 ppm), T3 (NAA @20 ppm), T4 (NAA @40 ppm), T5 (Urea @1.0%), T6 (Urea @1.5%), T7 (GA3 @10 ppm + NAA @20 ppm + Urea @1.0%), T8 (GA3 @20 ppm + NAA @40 ppm + urea @1.5%). Mentioned solutions with different concentration were sprayed by foot sprayer in the morning hours and selected branches were fully drenched. On the basis of sprays of plant growth regulators i.e. GA3 and NAA and urea as well as their combined treatments influenced different parameters in this research trial. The combined treatments of GA3 20 ppm + NAA 40 ppm + urea 1.5% maximized initial fruit set, fruit retention, fruit volume, length of fruit, fruit diameter, fruit weight, pulp weight, pulp/stone ratio and minimized the fruit drop, stone weight content. The second effective treatment was GA3 10 ppm + NAA 20 ppm + urea 1.0% identified in present investigation.