scholarly journals Maize (Zea mays L.) response to subsoil compaction and nitrogen fertilization under semi-arid irrigated conditions

2015 ◽  
Vol 7 (1) ◽  
pp. 493-500
Author(s):  
Jagdish Singh ◽  
M. S. Hadda
Keyword(s):  
Zea Mays ◽  
Nitrogen Fertilization ◽  
Zea Mays L ◽  
N Uptake ◽  
Growth Yield ◽  
Dry Matter Accumulation ◽  
Area Index ◽  
Total N ◽  
Yield Attributes ◽  
Subsoil Compaction

The present investigation was carried out to access the optimal N dose and its impact on growth, yield and yield attributes of hybrid maize (Zea mays. L) under subsoil compaction condition. The experiment was conducted at Research Farm, Department of Soil Science, Punjab Agricultural University, Ludhiana during the summer seasons of the year 2012 and 2013. The experiment comprised three subsoil compaction treatments in main plots and three nitrogen levels in sub plots following split-plot design with three replications. Plant height, leaf area index and dry matter accumulation were negatively affected by subsoil compaction. However nitrogen fertilization mitigates the negative effect of subsoil compaction on growth of maize. Cob length was recorded lower with higher cob barrenness under higher degree of subsoil compaction. The grain yield was reduced by 13-16 per cent and biomass yield by 10-17 per cent due to subsoil compaction. The total N uptake was 14.6 and 18.2 per cent higher under C0 treatment than that in highly compacted subsoil (C2), while N2 treatment had improved the total N uptake by 18.6 and 14.9 per cent as compared to N0 treatment during the year 2012 and 2013, respectively. The results revealed that N1 fertilization level can be recommended under subsurface compacted soils as compared to N0 and N2 rates. This study further suggests the management option should be explored in addition to deep tillage to maximize yield of maize.

scholarly journals Effect of Different Dates of Sowing on Growth, Yield Attributes and Yield of Various Cultivars of Kharif Blackgram (Vigna mungo L.) under Amritsar Conditions

2021 ◽  
Author(s):  
Karan Kumar ◽  
Rakesh Kumar
Keyword(s):  
Seed Yield ◽  
Seed Weight ◽  
Growth Yield ◽  
Vigna Mungo ◽  
Limiting Factors ◽  
Dry Matter Accumulation ◽  
Area Index ◽  
Yield Attributes ◽  
Kharif Season ◽  
Sowing Dates

Background: Among pulses, blackgram is one of most important crop. Blackgram has originated from Indian sub-continent where it has been cultivated from ancient times and standout amongst most expensive pulse crop in India. Being observed, the productivity of blackgram is low in India as well as in Punjab due to lack of knowledge regarding various agronomic implementations, among them, time of sowing and selection of suitable cultivar are one of the major limiting factors in production, especially during kharif season. Methods: The research was carried out to investigate the effect of different dates of sowing on growth, yield attributes and yield of various cultivars of kharif blackgram (Vigna mungo L.) during kharif season 2019 at Student’s Research Farm, Department of Agriculture, Khalsa College, Amritsar. The experiment was laid-out in split-plot design, consisting of four dates of sowing (8th July, 18th July, 28th July and 8th August) as main-plot treatments and three cultivars (Mash114, Mash 338 and KUG 479) as sub-plot treatments, with four replications. Result: Among the sowing dates, the higher seed yield (10.27 q/ha) of blackgram was recorded when crop was raised on 8th July, which was significantly 12.6%, 20.3% and 30.5% higher than 18th July, 28th July and 8th August sown crop respectively. Among blackgram cultivars, the higher seed yield was observed in Mash 114 (10.19 q/ha) which was significantly 14% and 32% superior over Mash 338 and KUG 479 respectively. The sowing dates and cultivars had significant effect on the pods/plant, seeds/pod and seed weight/plant. The significantly higher number of pods/plant (24.3), seeds/pod (6.8) and seed weight/plant (3.2 g) were obtained with 8th July sown crop as compared to 28th July and 8th August sown crop. Among the cultivars, the significantly higher number of pods/plant (23.6), seeds/pod (6.4) and seed weight/plant (3.2 g) were recorded with Mash 114. The growth parameters viz. Plant height, nodules/plant, leaf area index and dry matter accumulation, were shown decreased trend by 29.2%, 19.13%, 12.2% and 25.4% respectively with the delay in sowing from 8th July to 8th August.

scholarly journals Growth, yield attributes, yield and economics of winter popcorn (Zea mays everta Sturt.) as influenced by planting time fertility level and plant population under late sown condition

2016 ◽  
Vol 8 (3) ◽  
pp. 1438-1443
Author(s):  
S. K. Singh ◽  
R. N. Singh ◽  
U. S. Ram ◽  
M. K. Singh
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Growth Yield ◽  
Plant Population ◽  
Late Winter ◽  
Cost Ratio ◽  
Fertility Level ◽  
Area Index ◽  
Yield Attributes ◽  
Planting Time

The field experiment was laid out in split plot design with three replications, assigning in 27 treatment combinations i.e. three sowing dates of Pop corn (Zea mays everta Sturt.)cv. V.L. Amber (15 Dec, 30 Dec and 15 Jan) arranged in main plots and three level of plant population (60000, 80000 and 100,000 plants ha-1) in sub plot. Three level of fertility (100:50:50, 150:65:65 and 200:85:85 kg of N: P2O5: K2O ha-1) apportioned in sub-sub plots at the Research farm, Institute of Agricultural Sciences, BHU, Varanasi (U.P.) during late winter (rabi) seasons of 2009-10 and 2010-11 to study the influenced of planting time, fertility level and plant population on yield attributes, grain yield and economics of winter popcorn (Zea mays everta Sturt.) under late sown condition. The popcorn sown on 15th December recorded highest plant height, leaf-area index, dry matter, popcorn growth rate, yield attributes and yield of pop corn were significantly (P<0.05) affected and recorded highest benefit cost ratio (3.78). While, the maintenance of 80,000 popcorn plants/ha proved optimum for pop corn as it significantly (P<0.05) recorded highest number of kernel cob-1,grain yield (32.61 q/ha) and shelling percentage against density of 60,000 plants, while remained at par in straw yield over 100,000 plants. Application of 200: 85: 85 kg N: P2O5: K2O/ha significantly (P<0.05) increased growth, yield attributes and grain yield over 100: 50: 50 and 150: 65: 65 kg N: P2O5: K2O/ha and fetched the highest B: C ratio (3.14).

COMPARISON OF MAIZE (Zea mays L.) GROWTH AND NITROGEN PARAMETERS UNDER HYDROPONIC AND FIELD CONDITIONS

1989 ◽  
Vol 69 (3) ◽  
pp. 643-651
Author(s):  
R. T. WEILAND ◽  
A. M. McCLUNG
Keyword(s):  
Zea Mays ◽  
Growth Stage ◽  
Zea Mays L ◽  
Field Conditions ◽  
Growth Chamber ◽  
Shoot Biomass ◽  
Dry Matter Accumulation ◽  
Total N ◽  
Chamber Studies ◽  
Growth Chamber Studies

A comparison of biomass and nitrogen (N) parameters from 23 maize (Zea mays L.) inbreds was conducted between hydroponic culturing during two growth chamber studies and soil in the field for two harvests during 1984. The growth chamber studies and first field harvests were sampled at a similar growth stage (approximately nine-leaf); the second field harvest was at anthesis. Shoot dry matter accumulation was greater under hydroponic than under field conditions at a similar vegetative growth stage. Significant inbred differences for shoot biomass, reduced and total N contents and reduced and total N concentrations were determined for the growth chamber and both field harvests. Correlation coefficients were low and not significant (P < 0.05) between inbred parameters in the growth chamber and in the field. In summary, traits from hydroponic plants were not predictive of those from field plants. However, N parameters and biomass of inbreds harvested in the field at a mid-vegetative stage were predictive of inbred performance at anthesis.Key words: Zea mays L., maize, biomass, nitrogen, field, hydroponic

scholarly journals Effect of Precision Nitrogen Management through LCC on Nutrient Content and Uptake of Maize (Zea mays L.) under Temperate Conditions of Kashmir

2021 ◽  
pp. 1-11
Author(s):  
Suhail Fayaz ◽  
Raihana Habib Kanth ◽  
Tauseef Ahmad Bhat ◽  
M. Anwar Bhat ◽  
Bashir Ahmad Alie ◽  
...  
Keyword(s):  
Zea Mays ◽  
Dry Matter ◽  
Zea Mays L ◽  
N Uptake ◽  
Nutrient Content ◽  
Nitrogen Management ◽  
Dry Matter Accumulation ◽  
Jammu And Kashmir ◽  
Maize Hybrids ◽  
N Management

Field experiment was conducted at Faculty of Agriculture, SKUAST-Kashmir, Wadura, Jammu and Kashmir during kharif seasons of 2019 and 2020 to assess the effect of precision nitrogen management through LCC on nutrient content and uptake of maize (Zea mays L.) under temperate conditions of Kashmir. The experiment comprised of three maize hybrids (SMH-2, Vivek-45 and Kanchan-517) assigned to main plots and seven Precision N management viz. nitrogen splits @ 20 and 30 kg N ha-1 managed through LCC (LCC scores of 3, 4 and 5), recommended nitrogen level and control in subplots. The treatments were replicated thrice in a split plot design. The results revealed that LCC ≤ 5 @ 30 kg N ha-1 recorded highest dry matter accumulation and periodic N uptake at all the stages of growth and highest P and K uptake by grain and straw at harvest. Further, highest dry matter accumulation and uptake of NPK was recorded in cultivar SMH-2 as compared to Vivek-45 and Kanchan-517 during 2019 and 2020 respectively. LCC based N application proved effective in increasing dry matter and nutrient content of maize hybrids.

Assessment of nitrogen doses and planting densities for optimizing growth and yield performance of rainfed maize (Zea mays L.)

2017 ◽  
Vol 51 (05) ◽  
Author(s):  
Selila Sangtam ◽  
T. Gohain ◽  
Noyingthung Kikon
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
N Uptake ◽  
Field Investigation ◽  
Growth And Yield ◽  
Planting Density ◽  
Yield Performance ◽  
Yield Attributes ◽  
Rainfed Conditions ◽  
Crop Stand

A field investigation was conducted during the kharif season of 2014 to optimize N doses and planting densities for enhanced growth and yield performance of maize under rainfed conditions of Nagaland. Application of N @ 80 kg/ha resulted in higher N uptake and enhanced growth of maize ultimately expressing superior yield attributes and registering the highest grain and stover yields of 3518.5 and 6976.01 kg/ha respectively. Maintaining a planting density of 55,555 plants/ha at a spacing of 60 cm x 30 cm was found to provide optimum crop stand in maize resulting in higher N uptake and favourable growth consequently recording better yield attributes and maximum grain yield of 2941.66 kg/ha. However, higher planting density of 74,074 plants/ha at a spacing of 45 cm x 30 cm was found to be more effective for higher stover yields up to 6772.63 kg/ha.

scholarly journals Response of nitrogen fertilization on Bt and non-Bt cotton (Gossypium hirsutum) hybrids

2014 ◽  
Vol 11 (1) ◽  
pp. 121-132 ◽  
Author(s):  
B Gangaiah ◽  
IPS Ahlawat ◽  
MBBP Babu
Keyword(s):  
Nitrogen Fertilization ◽  
N Uptake ◽  
Growth Yield ◽  
N Fertilization ◽  
Optimum Dose ◽  
Bt Cotton ◽  
Yield Attributes ◽  
Economic Point ◽  
N Dose ◽  
Cotton Hybrid

A field experiment was conducted during 2006 and 2007 (June- December) at New Delhi to assess the performance of three cotton hybrids of which two Bt (MRC 6304 & RCH 317) and one non-Bt cotton hybrid LHH 144 (North zone check) in response to nitrogen fertilization (0, 60, 120 and 180 kg ha-1). Based on pooled analysis, both Bt hybrids produced similar seed cotton yield (SCY). Bt hybrid have produced 7.1 bolls/plant (on an average) and bolls 0.48 g heavier than non Bt hybrid LHH 144 that lead to 1.07 t ha-1 higher SCY of Bt hybrids than non-Bt hybrid (1.93 t ha-1). Though the N uptake by cotton hybrids was statistically similar N harvest index (NHI) was higher in Bt hybrid (57.85) as compared to non-Bt hybrid (40.5). The agronomic N use efficiency (ANUE) was highest in MRC 6304 Bt (6.44) and least in LHH 144 non-Bt cotton (3.91). Cotton growth, yield attributes, SCY, and N uptake increased with each successive increase to the highest level of 180 kg ha-1 however, the N response of cotton was quadratic in nature with optimum dose of 173.0 kg ha-1. The NHI decreased with increase in N dose i.e. from the highest of 56.3 in control to the lowest of 48.8 with 180 kg ha-1 N fertilization. ANUE and physiological NUE that was highest with 60 (5.73) and 120 kg N fertilization (17.05), respectively and decreased with further increase in N dose. The cotton hybrid x N interaction effect revealed that Bt cottons have quadratic N response while non-Bt cotton has linear N response. From the economic point of view, Bt hybrids with 120 kg Nha-1 could be optimum dose for cotton cultivation. DOI: http://dx.doi.org/10.3329/sja.v11i1.18389 SAARC J. Agri., 11(1): 121-132 (2013)

scholarly journals Effect of Nitrogen and Foliar Application of Naphthalene Acetic Acid (NAA) on Growth and Yield of Baby corn (Zea mays L.)

2021 ◽  
pp. 55-61
Author(s):  
Kagitha Sudharshan Rao ◽  
Shikha Singh ◽  
K. Ravi Chandra ◽  
Joy Dawson
Keyword(s):  
Zea Mays ◽  
Acetic Acid ◽  
Zea Mays L ◽  
Foliar Application ◽  
Growth And Yield ◽  
Naphthalene Acetic Acid ◽  
Naphthaleneacetic Acid ◽  
Research Station ◽  
Area Index ◽  
Yield Attributes

The experiment entitled effect of nitrogen and foliar application of naphthaleneacetic acid on growth and yield of Baby corn (Zea mays L.) was conducted during the Rabi season of 2020 at the Fodder Production Farm of Livestock Research Station, Sri Venkateswara Veterinary University, Lam Farm, Guntur. Andhra Pradesh. The experiment was laid out in Randomized Block Design with 10treatments and each replicated thrice. Treatments consisted of a combination of three levels of nitrogen (60.0, 90.0, 120.0kg/ha) and three levels of naphthalene acetic acid (20,40,60 ppm). It was found that an application of 120 kg Nitrogen/ha as basal along with foliar spray of 40 ppm naphthalene acetic acid at 25 and 35 days after sowing, was the most suitable treatment for obtaining growth and yield attributes such as plant height  (177.60 cm), number of leaves (11.33), plant dry weight (113.58g/plant), chlorophyll content (68.43), Leaf Area Index (8.65) and green fodder yield (20333 kg/ha) with net return (83,701.88 Rs/ha) and B:C ratio (1.68). On the basis of one-year experimentation it is concluded that the application of 120 kg Nitrogen/ha + 40 ppm naphthalene acetic acid, on baby corn improved cob yield by 25 % and was found more productive than the recommended dose of fertilizer.

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