scholarly journals Efficient Use of Nitrogen, Gibberellic Acid and Potassium on Canola Production under Sub-tropical Regions

Author(s):  
Muhammad Mahran Aslam ◽  
Mohammad Aquil Siddiqui

Abstract The global demand for crop production is rapidly growing due to the continued rise in world population. Crop productivity varies generally with soil nutrient profile and climate. The optimal use of fertilizers might help to attain higher crop yield in canola. To circumvent nutrient imbalance issues in soil, two separate field trials were conducted to determine the best source of nitrogen (ammonium sulfate/ammonium nitrate), foliar application of gibberellic acid (GA3) and potassium (K) for the canola yield and yield attributes for four consecutive years (2014 to 2018). Both experiments were carried out in randomized complete block design (RCBD) with three replicates. The nitrogen source in the form of ammonium sulfate (0, 10, 20 and 30 kg/ha) and ammonium nitrate (0, 50, 75 and 100 kg/ha) was applied in the rhizosphere. In another experiment, the canola crop was sprayed with four level of gibberellic acid (GA3; 0, 10, 15, 30g/ha) and potassium (K; 0, 2.5, 3.5, 6g/ha) separately or in combination by using hydraulic spryer. The analysis showed that fertilization with nitrogen in the form of ammonium nitrate (100 kg/ha) and ammonium sulfate (30 kg/ha) had a positive effect on the plant height, number of branches, fruiting zone, seed yield per plant, seed yield per hectare of canola except oil percentage. Moreover, canola plants displayed a significant improvement on all studied features with high dosses of GA3 (30 g/ha) and K (6 g/ha) individualy and in combined form. In a nutshell, compared to both source of nitrogen, ammonium nitrate was more efficient and readily available source of nitrogen. Gibbrellic acid being a natural growth elicitor and potassium as a micronutrient serve as potential source to improve yield and to mange nutrient profile of canola.

Author(s):  
Pragun Pal ◽  
Subhasis Mondal ◽  
Puspendu Samanta

Zinc plays a greater role during reproductive phase especially during fertilization. A field experiment was conducted in district seed farm AB block, Kalyani, Nadia, Bidhan Chandra Krishi Viswavidyalaya (B.C.K.V) during 2016-17 and 2017-18 in Randomized Block Design (RBD) and replicated thrice to check the response of lentil against different concentration of ZnSO4· 7H2O. Zinc foliar application applied at preflowering and podding stage. It has been observed that all the zinc applications have better results than the control. Among different treatments 0.04% and 0.08% zinc shown better result. Among humans, Zinc (Zn) deficiency is a well documented global health problem, affecting nearly half of the world population. Zn content of the seed increased maximum in 0.08% Zn treatment but seed yield is maximum in 0.04% Zn treatment. Therefore, it is concluded that foliar application of zinc improves lentil productivity and lentil production.


Author(s):  
A.K.G. Atteya ◽  
S.K.Al Taweel ◽  
E.A.E. Genaidy ◽  
H. A.Zahran

This experiment was conducted to study jojoba response (Simmondsia chinensis) evergreen dioecious shrub to zinc sulphate plus gibberellic acid foliar application on vegetative, flowering, seed yield and seed chemical composition at private farm during two successive seasons of 2015 and 2016 in the Egypt. An experiment was laid out in randomized complete block design with three replications. In this study, jojoba plants were sprayed with all combination treatments of Zinc sulphate (0, 25, 50 and 75ppm) plus gibberellic acid (0, 50, 100 and 150ppm) thrice in the beginning of December, March and May. There results revealed that all combination treatments showed a significant improvement in all examined parameters with an increase in ZnSO4 / GA3 levels in comparison with untreated trees. Therefore, the maximum significant branch length (99.36 and 103.46 cm), secondary branches length (55.82 and 58.36 cm) obtained by application of 75ppm ZnSO4 plus 150ppm GA3 treatment, so this combination recorded the highest percentage of flowering %, final fruit set (95.01, 95.24%), total chlorophyll, mineral% content, seed yield per feedan (2200, 2145 kg) and seed lipid content(57.6%, 58.55%) at first and second terms respectively. The application of 75ppm ZnSO4 plus 150ppm GA3 treatment is recommended to improve jojoba traits which lead to raise its economic value as a promising tree which potentially useful as a biofuel with multi chemical and pharmaceuticals industries uses.


Author(s):  
A. Fatehi ◽  
B. Pasari ◽  
A. Rokhzadi

Background: The major part of the edible oil used in Iran is supplied through imports. It is important to increase the yield of oilseed crops, especially soybeans, in non-chemical and environmentally friendly ways, along with its easy availability and low cost. The use of magnetic water as a new method, increases the yield of plants by improving solubility and access the nutrients. On the other hand, in recent years, methanol spraying as a source of carbon dioxide, which increases the concentration of this gas around the plant, enhancing the photosynthesis and plant yield. This study was conducted to study the efficacy of different intensities of magnetic water and various concentrations of methanol foliar application on agronomic traits of soybean. Methods: This experiment was carried out as split plot in a randomized complete block design with 3 replications during two consecutive years 2016-17. The main plot was irrigated with magnetic water in 4 intensity (0: control, 4, 8, 12mTesla) and a subplot was methanol spraying in 4 volumetric percentage (distilled water: control, 10, 20 and 30% v/v). Result: Photosynthetic pigments viz. (Chlorophyll a, b, carotenoid), yield attributes, seed yield, biological yield, seed protein and soybean economics were significantly affected by the magnetic water and methanol spraying. Seed yield and net return, as the most important traits increased by magnetic irrigated with 8 and 12mTesla intensities, compared to control, by 70.05-72.19% and 122.37-126.05%, respectively. Furthermore the maximum biological, stover yields and protein obtained by 8mTesla magnetic irrigation, compared to control, it showed 59.54, 54.9 and 10.07% superiority, respectively. Also, methanol foliar application at 20% concentration increased seed yield, biological yield, seed protein and net return by 19.01, 13.73, 5.24 and 26.43%, respectively.


2018 ◽  
Vol 5 (01) ◽  
Author(s):  
MAHENDER S. SINGH ◽  
NARENDRA KUMAWAT ◽  
I. S. TOMAR ◽  
T S. DUDWE ◽  
R. K. YADAV ◽  
...  

The aim of present investigation was to study the effect of foliar application of gibberellic acid (Progibb 40% WSG) spraying at 4-5 leaves stage of the maize crop. Two field experiments were conducted during kharif 2014 and rabi 2014-15 at Research Farm, Zonal Agricultural Research Station, Jhabua. Seven treatments (T = 20, T 30, T 40, T 50 T 60 gibberellic acid g/ha, Tricontanol 1 2= 3= 4 = 5= 0.1%= 250 ml/ha and control) were tested in randomized block design with three replications. Results showed that variation in different doses of gibberellic acid had significant effect on growth character (plant height and silking) and yield attributes (no. of cobs/plant, cob length, no. of grains/cob and cob weight/cob); grain yield and stover yield of maize in both the seasons. Higher values of plant height (197.33 and 205.5 cm) and silking (53.67 and 54.67) was recorded with the spraying of gibberellic acid @ 60 g/ha in both the seasons, respectively. Similarly the higher yield attributes viz., no. of cobs/plant (1.48 and 1.49), cob length (17.40 and 17.78 cm), no. of grains/cob (443.33 and 456.67) and cob weight/cob (93.2 and 97.32) were recorded with the application of gibberellic acid @ 50 g/ha in both the seasons, respectively. Application of gibberellic acid @ 50 g/ha produced highest grain yield (3522 and 4277 kg/ha) and stover yield (51.05 and 5413 kg/ha) which was statistically at par with doses of 40 g/ha, 60 g/ha and tricontanol 0.1% @ 250 ml. The maximum gross return (Rs. 56,347 and 65,854), net return (37,722 and 47,229), B: C ratio (3.03 and 3.54), production efficiency (32.49 and 37.19 kg/ha/day) and economic efficiency (339.84 and 410.69 Rs./ha/day) recorded with gibberellic acid @ 50 g/ha. Enhancing of production, productivity and profitability of maize under Jhabua Hill of Madhya Pradesh gibberellic acid applied @ 50 g/ha at 4-5 leaf stage of crop.


2012 ◽  
Vol 40 (2) ◽  
pp. 210 ◽  
Author(s):  
Hamid MADANI ◽  
Mohammad Ali MALBOOBI ◽  
Kioomars BAKHSHKELARESTAGHI ◽  
Agnieszka STOKLOSA

A field experiment was conducted for investigation of different phosphorus fertilizer sources and their importance in rapeseed farms on 2007 at Arak, Iran. Ammonium phosphate fertilizer with 50% P2O5 (APF) was as chemical phosphorus sources with 3 rates of application and Phosphor solublizing bacteria (PSB) was as biological phosphorus surcease in 4 levels. Experiment was factorial arrangement in randomized complete block design with 3 replications. APF levels were control (AP0), 125kg/ha APF (AP1) and 250kg/ha (AP2) application and PSB levels were, control (PSB0), PSB at sowing time only (PSB1), PSB as top dress fertilizer after over wintering only (PSB2) and PSB at dual fertilizing in sowing time and also after over wintering (PSB3). The statistical analyses were showed that the PSB3 treatment was a great treatment for increasing seed yield. The heist rate of seed yield was recorded at 9.9t/ha under dual fertilizing in sowing time and after rosette over wintering stage. The interaction effects of phosphorus solublizing bacteria and ammonium phosphate fertilizer application had not significant effect on plant height, biomass yield, number of silique per plant, seed oil percent and seed yield. Interaction effects of phosphorus solublizing bacteria and ammonium phosphate fertilizer application were significant for plant tissues phosphorus content.


2003 ◽  
Vol 21 (3) ◽  
pp. 443-447 ◽  
Author(s):  
Márcio S. de Lima ◽  
Antonio I. I. Cardoso ◽  
Marcelo F. Verdial

Squash seeds yield and quality can be improved by proper population plant spacing and the pollen quantity, which influences the pollination quality and fertilization. Nine experiments were conducted as a factorial combination of three spacing between plants (0.8 x 0.3, 0.8 x 0.6 and 0.8 x 0.9 m), two quantities of pollen (50% of an anther and another entire one) and natural insect pollination. Seed and fruit production parameters, and seed quality were evaluated. A randomized complete block design, five replications, with ten plants per plot was adopted. Larger plant spacing increased the average number of mature fruits and seed yield per plant. Seed yield was directly proportional to the amount of pollen used during pollination. Higher amounts of pollen resulted in higher seed yield per area, but the plant spacing did not affect this characteristic. Manual pollination, using a whole anther, did not differ from natural pollination in relation to seed yield and quality.


2021 ◽  
Vol 5 (4) ◽  
pp. 786-794
Author(s):  
Cihan YEŞILBAŞ ◽  
Yeşim TOGAY

The study was conducted to determine effects of organic and inorganic fertilization on the yield and some yield components in lentil cultivars in 2014-15 growing seasons in Van. The experiment was laid out in a factorial randomised block design with three replications. The study was conducted to determine effects of different fertilizer sources (Control, DAP, Chicken manure and sheep manure) on the yield and some yield components in two lentil cultivars (Özbek and Kafkas). In the study were investigated the plant height, first pod height, branch number per plant, pod and seed number per plant, seed number per pod, biological yield, seed yield per unit, harvest index, 1000-seed weight and protein ratio in seed. The highest seed yield was obtained from chicken manure application of Özbek cultivar with 157.6 kg da-1.  


Author(s):  
R. Ajaykumar ◽  
S. Selvakumar ◽  
K. Harishankar ◽  
K. Sivasabari

Background: Blackgram [Vigna mungo (L.) Hepper] is one of the most important cultivated legume crops with high nutritive value and agricultural importance. The productivity of blackgram is not adequate to meet the domestic demand of the growing Indian population. Consequently, there is an urgent need for enhancement of productivity through proper agronomic practices. With this background, a research experiment was conducted in a farmer’s field at Pudhupalayam, Coimbatore to investigate the effect of foliar application of PPFM, plant growth regulating compounds and nutrients on growth, yield attributes, yield and economics of irrigated blackgram. Methods: A field experiment was laid out in randomized block design with three replications during 2019 (kharif and rabi) season. The treatments include 100% recommended dose of NPK along with foliar application of diammonium phosphate (DAP), brassinolide (Br), salicylic acid (SA) and pink pigmented facultative methylotrophs (PPFM) with different concentration (1%, 2%, 1 ppm, 2 ppm, 50 ppm, 100 ppm, respectively) in addition to control. PPFM and PGRs were sprayed at 30 and 45 days after the sowing of blackgram. Result: The experiment results of the two seasons study revealed that the application of 100% RDF + PPFM @ 2% recorded higher growth characters viz., plant height (cm), number of branches plant-1, leaf area index and yield attributes viz., number of pods plant-1, number of seeds pod-1, pod weight (g), pod height (cm), 100 seed weight (g) and yield viz., grain yield (kg/ha), straw yield (kg/ha) and harvest index (%). As well as the same treatment recorded higher net return and B:C ratio. Correlation and regression analysis also indicated that the yield attributes had a positive impact on the grain yield with a magnitude of 1.91 and 1.67, respectively. Therefore, application of 100% RDF+2% PPFM spray can be recommended as the best technology to improve the yield and economics of blackgram.


2017 ◽  
Vol 15 (1) ◽  
pp. 156-169 ◽  
Author(s):  
M Rahman ◽  
MAH Bhuiyan ◽  
ME Ali ◽  
F Alam ◽  
RA Begum

A pot experiment was carried out in the nethouse of Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during 2014-2015 through 2015-2016. The design of the experiment was factorial randomized completely block design with 4 replications. The objectives of the study were to evaluate the potential of Arbuscular mycorrhization (AM) on the germination, yield and yield attributes of lentil treated with different concentration of sodium chloride (NaCl). Five NaCl treatments (0, 1, 2, 3 and 4%) possessed NaCl level as the first factor that were treated with soils before sowing of lentil seeds overriding or pivotal pulse crop in Bangladesh. The second factor consists of mycorrhizal and non-mycorrhizal treatments. Mycorrhizal plants showed better performance in terms of germination %, yield and yield contributing characters than non-mycorrhizal plants. With increasing NaCl concentration germination %, yield and yield contributing characters in the rhizosphere soil, decreased significantly (p<0.01). Interaction effects of mycorrhizal inoculation and NaCl on germination %, growth and yield of lentil were appeared to be statistically non-significant. The highest germination (96.25% in 2014-2015 and 92.50% in 2015-2016), seed yield (6.45 g pot-1 in 2014-2015 and 5.89 g pot-1 in 2015-2016), and stover yield (9.55 g pot-1 in 2014-2015 and 8.58 g pot-1 in 2015-2016) was found in NaCl 0% + AM treatment. The lowest germination %, seed yield and stover yield was found in NaCl 4% treatment. Mycorrhizal inoculation increased seed yield on an average by 31.85% during 2014-2015 and 63.71% during 2015-2016, and increased stover yield on an average by 48.56% during 2014-2015 and 63.55% during 2015-2016 over non-mycorrhizal inoculation. Therefore, it can be concluded that mycorrhizal inoculation increases germination %, growth and yield of lentil over non-mycorrhizal inoculation. The Agriculturists 2017; 15(1) 156-169


1993 ◽  
Vol 73 (3) ◽  
pp. 785-793 ◽  
Author(s):  
Shree P. Singh ◽  
Albeiro Molina ◽  
Carlos A. Urrea ◽  
J. Ariel Gutiérrez

Recently, interracial hybridization was used successfully in breeding common bean (Phaseolus vulgaris L.), but its use has not been adequately documented. Approximately 125 lines with medium-sized seed were selected in the first cycle, mostly from race Durango × race Mesoamerica (both from the Middle American domestication center) single- and multiple-cross populations, for disease resistance and race Durango characteristics. Fifteen of these improved lines, three race Durango control cultivars, and one control cultivar each from races Jalisco and Mesoamerica were evaluated for 3 yr (1989–1991) at three locations in Colombia. A randomized complete block design with three replications was used. Lines were developed using visual mass selection for seed yield and/or resistance to diseases in F2 and F3, followed by single plant harvests in F4 or F5 and seed increases in F6 or F7. Lines resistant to bean common mosaic virus and possessing other desirable traits were yield-tested in F7 or F8. All but two lines outyielded Alteño and Flor de Mayo, the highest yielding control cultivars from races Durango and Jalisco, respectively. Two lines also outyielded Carioca, the race Mesoamerica control cultivar. Improved lines tended to possess higher yield per day. All lines were resistant to bean common mosaic virus and most lines also carried a high level of resistance to anthracnose. Plant, seed, and maturity characteristics of most improved lines were similar to those of race Durango control cultivars. These results support the use of interracial hybridization in improving race Durango common bean. Key words: Common bean, Phaseolus vulgaris, race Durango, interracial populations, seed yield, disease resistance


Sign in / Sign up

Export Citation Format

Share Document