scholarly journals Correlations among Grain yield and Yield attributes in Maize Hybrids as Influenced by Site Specific Nutrient Management (SSNM)

2017 ◽  
Vol 6 (8) ◽  
pp. 2292-2296
Author(s):  
H.T. Chetan ◽  
M.P. Potdar ◽  
B.T. Nadagouda ◽  
P.L. Patil ◽  
C.R. Patil
Keyword(s):  
Grain Yield ◽  
Nutrient Management ◽  
Yield Attributes ◽  
Site Specific ◽  
Maize Hybrids

scholarly journals Increasing productivity of an intensive rice based system through site specific nutrient management in Western Terai of Nepal

2018 ◽  
Vol 18 ◽  
pp. 140-150
Author(s):  
Santosh Marahatta
Keyword(s):  
Grain Yield ◽  
Nutrient Management ◽  
Management Practice ◽  
Fertilizer Efficiency ◽  
Nitrogen And Phosphorus ◽  
Yield Attributes ◽  
Site Specific ◽  
Crucial Component ◽  
Major Nutrients ◽  
Phosphorus Application

Improving nutrient management through site specific nutrient management (SSNM) can increase grain yield and maintain appropriate yield attributes per unit of fertilizer applied through harmonized uptake, utilization and metabolism of major nutrients. On-farm experiments were conducted from 2011-2013 at Sunawal, Nawalparasi. SSNM dose was calculated by accounting for indigenous nutrient supply, yield goal, nutrient demand and fertilizer efficiency. SSNM decreased nitrogen and phosphorus application by 4 and 28% while demanded 80% more potassium and increased grain yield by 6% over recommended practice. As compared to the farmers fertility management practice (FFP), SSNM increased grain yield by 35%. Reducing 25% of SSNM dose was equally effective as recommended practice of nutrient application. Only improving the potassium application (+32 kg ha-1) on FFP, yield was increased by 17%. Leaf color charts (LCC) improve nitrogen management and proved as crucial component of SSNM as 0.3 t ha-1 more yield over three split nitrogen applications of SSNM dose.

scholarly journals Site-Specific Nutrient Management for Irrigated Rice in South Central Region of Bangladesh

2018 ◽  
Vol 20 (2) ◽  
pp. 1-9
Author(s):  
MAA Mamun ◽  
SA Islam ◽  
MS Islam ◽  
AJ Mridha ◽  
MA Saleque
Keyword(s):  
Grain Yield ◽  
Central Region ◽  
Field Trial ◽  
Nutrient Management ◽  
Rice Yield ◽  
Substantial Variation ◽  
Irrigated Rice ◽  
Site Specific ◽  
South Central ◽  
A Site

A site-specific nutrient management (SSNM) field trial was conducted for irrigated rice using five fertilizer treatments: i) omission of N, ii) omission of P, iii) omission of K, iv) NPK and v) farmers’ practice (FP). Substantial variation in the native N, P, and K supply was found among farmers’ fields. The indigenous soil K produced 4.5 to 5.0 t ha-1 but native P and N gave only rice yield of 3.5 to 4.0 t ha-1. The highest grain yield (6.0 to 7.5 t ha-1) was obtained from balanced fertilization, followed by FP (4.0 to 5.0 t ha-1).The optimal grain yield at Faridpur was obtained by using N, P and K at 135, 8 and 49 kg ha-1; 139, 9 and 42 kg ha-1; and 140, 10 and 43 kg ha-1 for high, medium and low land rice, respectively. However, for Gopalgonj district fertilizer doses of N, P and K were 140, 11 and 38 kg ha-1; 142, 10 and 42 kg ha-1; and 138, 10 and 49 kg ha-1; and for Madaripur district, 126, 8 and 46 kg ha-1; 120, 7 and 38 kg ha-1; and 99, 6 and 27 kg ha-1 for high, medium and low land rice, respectively. These predicted fertilizer doses increase farmers’ income and protect environment from pollution.Bangladesh Agron. J. 2017, 20(2): 1-9

scholarly journals Evaluation of Sesame Yield and Yield Component under Different NPSZnB Fertilizer Rates in Western Tigray, Ethiopia

2020 ◽  
pp. 7-16
Author(s):  
Teame Shimgabr ◽  
Negasi Gebereslasie ◽  
Welesenbet Haftu ◽  
Haile Alene
Keyword(s):  
Grain Yield ◽  
Sesamum Indicum ◽  
Yield Component ◽  
Control Analysis ◽  
Nutrient Deficiencies ◽  
Yield Attributes ◽  
Site Specific ◽  
Rainfall Season ◽  
Oil Crops ◽  
Fertilizer Rates

Sesame is one of the most popular oil crops in the Western Tigray Ethiopia. Blended fertilizers containing N, P, S, Zn and B have been recommended to ameliorate site specific nutrient deficiencies in different districts of Tigray. Field experiment was conducted during rainfall season of 2018 and 2019 to study the effect of NPSZnB fertilizer on sesame (Sesamum indicum L.) in vertisols of Western Tigray at the Humera station, Banat and Kebabo Kafta Humera and Tsegede Wereda’s. The treatments consisted of six levels of NPSZnB 0, 50, 100, 150, 200 and 250 kg ha-1 and one blanket recommendation NP was applied. Data were recorded on sesame yield and yield components. The results revealed that addition of graded rate of NPSZnB significantly increased yield and yield attributes over the control. Analysis of variances showed that grain yield, number of capsule per plant, number of seeds per capsule and number of branching per plant was significant differences at (P< 0.001). Grain yield increases from 421 kg ha-1 to 630.1 kg ha-1 as NPSZnB increases from 0 (control) to 150 kg ha-1 and 421 kg ha-1 to 626.2 kg ha-1 as NP increases from 0 (control) to 41 N kg and 46 P205 kg ha-1 respectively. But NPSZnB was not significant with blanket recommendation of NP (41 kg N and 46 kg P205 ha-1), this indicates that either the blend or blanket NP can be used but not one to replace the other.

scholarly journals Effect of Elevated [CO2] and Nutrient Management on Grain Yield and Milling Quality of Rice in Subtropical India

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Dillip Kumar Swain ◽  
Poonam Biswal
Keyword(s):  
Climate Change ◽  
Grain Yield ◽  
Elevated Co2 ◽  
Crop Production ◽  
Nutrient Management ◽  
Negative Impact ◽  
Processing Quality ◽  
Yield Attributes ◽  
Head Rice ◽  
Co2 Level

The climate change due to mingled effect of rising [CO2] level and temperature will influence crop production by affecting various components of the production system. In the present study, Open Top Chamber (OTC) facility has been used to realize the consequence of rising [CO2] with nutrient management on rice crop. The experiment was organized in open field and inside OTC with ambient [CO2] (400 ppm) and elevated [CO2] (25%, 50% and 75% higher than ambient) in wet season of the year 2017-18 at Kharagpur, India. Increase in [CO2] level resulted decreasing trend in growth, yield attributes (filled grains number) and grain yield. The nutrient management with use of only chemical fertilizer at recommended dose gave highest grain yield, which was comparable with integrated management using chemical and biofertilizer. Post-harvest processing quality such as head rice percentage and the head rice yield decreased significantly with CO2 elevation. The elevated [CO2] with 25 to 75% higher than ambient, reduced the head rice percentage by 13 to 21 %. The research stated that investigations on climate change adaptations should be made to avoid the negative impact of rising [CO2] level and temperature on crop yield and processing quality.

scholarly journals Effect of Bio Fertilizers and Inorganic Fertilizers on Growth, Productivity and Quality of Bread Wheat Cultivars

2018 ◽  
Vol 51 (4) ◽  
pp. 1-16 ◽  
Author(s):  
E.M. Hafez ◽  
S.A. Badawy
Keyword(s):  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Crop Production ◽  
Nutrient Management ◽  
Management Strategies ◽  
Growth Yield ◽  
Wheat Cultivars ◽  
Yield Attributes ◽  
Nitrogen Levels ◽  
Biological Yield

Abstract Integrated nutrient management strategies involving chemical and biological fertilizer is a real challenge to stop using the high rates of agrochemicals and to enhance sustainability of crop production. In order to study the effects of biofertilizers (Cerialin and Nitrobein) and chemical nitrogen levels (0, 85,170 and 250 kg N ha−1) on yield and yield attributes of two wheat cultivars (Sakha 94 and Gemmeiza 10), an agricultural experiment in the form of strip-split factorial design with three replications was conducted in Kafr El-Sheikh region, Egypt, in 2014/2015 and 2015/2016 growing seasons. The objective of this study was evaluation of the effects of these fertilizers separately and in integrated forms, and setting out the best fertilizer mixture. The results showed that treatment with biofertilizers and chemical nitrogen increased the growth, yield attributes, biological and grain yield. Both grain and biological yield produced a better result during the combination of nitrogen fertilizer and biofertilizers than using either method alone. Using biofertilizers increased biological yield through increase in number of grains spike−1, number of spikes m−2 and 1000 grain weight, which cause to increase in grain yield with significant changes in harvest index, as well as protein content. We may conclude that using biofertilizers (Cerialin or Nitrobein) and chemical nitrogen fertilizer (170 or 250 kg N ha−1) together had the maximum impact on yield. Then, we can decrease use of chemical fertilizers through using biofertilizers.

scholarly journals Farmer’s Participatory Site Specific Nutrient Management in Tidal Flooded Soil for High Yielding Aus Rice

2014 ◽  
Vol 17 (1-2) ◽  
pp. 1-6 ◽  
Author(s):  
M Sh Islam ◽  
MNH Mahmud ◽  
F Rahman ◽  
MA Saleque
Keyword(s):  
Soil Fertility ◽  
Grain Yield ◽  
Nutrient Management ◽  
Rice Yield ◽  
Flooded Soil ◽  
Npk Fertilizers ◽  
Site Specific ◽  
Grade Ii ◽  
Grade Iii

Experiments were conducted in farmers’ fields at Bakergonj, Barisal and Kathaltoli, Potuakhali districts to develop site-specific nutrient management package for high yielding aus rice. The participating farmers delineated soil fertility as the most fertile (grade I), medium fertile (grade II) and the least fertile (grade III) soil. Omissions of N, P, and K were compared with added NPK fertilizers in different fertility grades. At Bakergonj, the NPK treat plots yielded 4.29, 4.36 and 2.09 t ha–1 in soil grade I, II and III, respectively. Omission of N, P and K reduced grain yield by 0.76, 0.95 and 0.29 t ha-1 in grade I, 1.53, 0.87 and 1.25 t ha-1 in grade II and 0.64, 0 and 0.28 t ha-1 in grade III, respectively. At Kathaltoli, the grain yield (6.21 t ha–1) in grade I was higher than grade II (5.58 t ha–1) and grade III (5.11 t ha–1). Omission of N, P and K reduced grain yield by 0.93, 0.18 and 0.09 t ha-1 in grade I, 1.30, 0.37 and 0.93 t ha-1 in grade II and 1.86, 1.30 and 1.30 t ha-1 in grade III, respectively. For Bakergonj, the calculated optimum doses of N were 34, 69 and 29 kg ha–1, P were 4.0, 4.0 and 0.0 kg ha-1 and K were 7.0, 31.0 and 7.0 kg ha–1 for fertility grade I, II and III, respectively. For Kathaltoli, the calculated optimum doses of N were 42, 59 and 84 kg ha–1, P were 1.0, 2.0 and 5.0 kg ha-1 and K were 2.0, 23.0 and 33.0 kg ha–1 for fertility grade I, II and III, respectively. The application of predicted fertilizer dose might increase rice yield in all fertility grades of soil in both the locations.DOI: http://dx.doi.org/10.3329/brj.v17i1-2.20838Bangladesh Rice j. 2013, 17(1&2): 1-6

scholarly journals Response of Plant Spacing and Balanced Fertilization on Growth and Yield of Maize (Zea mays L.) in Red Laterite Zone of Purulia District of West Bengal

2020 ◽  
pp. 1-6
Author(s):  
D. C. Mahato ◽  
D. Dutta ◽  
L. Maity ◽  
P. Biswas ◽  
B. Mahato ◽  
...  
Keyword(s):  
Grain Yield ◽  
West Bengal ◽  
Growth And Yield ◽  
Plant Spacing ◽  
Drastic Reduction ◽  
Nitrogen And Phosphorus ◽  
Yield Attributes ◽  
Maize Hybrids ◽  
Purulia District ◽  
Different Doses

The experiment was conducted at Krishi Vigyan Kendra Kalyan, Purulia adopted village namely Jambad in Purulia District of West Bengal during kharif season of 2019. The experiment was laid out in nine strip plots with plot size of 48 sq m2. m including three different doses of Nutrients viz. N: P2O5:K2O - 120:60:60, 150:60:60 and 150:75:60 at densities comprising of 55,555 plants/ha (60 X 30 cm), 66,666 plants/ha (60 X 25 cm) and 83,333 plants/ ha (60 X 20 cm) by using of four row multi-crop planter with the objective of observing the effect of plant spacing on yield attributes and yield of maize hybrids. The yield attributing factor as cob length was determined and initially the yield was recorded for application of different doses of nutrients. In case of plant spacing with the optimum doses of nitrogen and phosphorus the only factor contributing to increase in grain yield per unit area was the number of plants grown in the area, so the maximum grain yield (7.5 t/ha) was obtained at (60 X 20 cm) spacing with application of nutrient doses of 150:75:60. Drastic reduction in grain yield occurred at wider plant spacing i.e. (60 X 30 cm). It was due to the reason that increase in cob length did not occur proportionately to the reduction in plant population.

scholarly journals Estimation of heterosis in yield and yield attributing traits in single cross hybrids of maize

2016 ◽  
Vol 2 (1) ◽  
pp. 123-132 ◽  
Author(s):  
Hari Prasad Sharma ◽  
Krishna Hari Dhakal ◽  
Raju Kharel ◽  
Jiban Shrestha
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Winter Season ◽  
Maize Production ◽  
Yield Attributes ◽  
Maize Hybrids ◽  
Randomized Complete Block Design ◽  
Single Cross ◽  
Standard Heterosis ◽  
Single Cross Hybrids

A field experiment was conducted at National Maize Research Program, Rampur, Chitwan, Nepal during winter season from 6th October, 2015 to 5th March 2016 to estimate different heterosis on single cross maize hybrids . Thirteen maize hybrids were tested randomized complete block design with three replications. Hybrid namely RML-98/RL-105 gave the highest standard heterosis (57.5%) for grain yield over CP-666 followed by RML-4/NML-2 (32.6%), RML-95/RL-105 (29%) and RML-5/RL-105 (20.6%). The hybrid RML-98/RL-105 produced the highest standard heterosis (75.1%) for grain yield over Rajkumar followed by RML-4/NML-2(50.2%), RML-95/RL-105(46.6%), RML-5/RL-105 and (35.7%). Mid and better parent heterosis were significantly higher for yield and yield attributes viz. ear length, ear diameter, no of kernel row per ear, no of kernel per row and test weight. The highest positive mid-parent heterosis for grain yield was found in RML-98/RL-105 followed by RML-5/RL-105, RML-95/RL-105, and RML-4/NML-2. For the grain yield the better parent heterosis was the highest in RML-98/RL-105, followed by RML-5/RL-105, RML-95/RL-105, and RML-4/NML-2. These results suggested that maize production can be maximized by cultivating hybrids namely RML-98/RL-105, RML-5/RL-105, RML-95/RL-105, and RML-4/NML-2.

SITE-SPECIFIC NUTRIENT MANAGEMENT FOR MAIZE HYBRIDS IN AN INCEPTISOL OF WEST BENGAL, INDIA

2017 ◽  
Vol 54 (6) ◽  
pp. 874-887 ◽  
Author(s):  
KRISHNENDU RAY ◽  
HIRAK BANERJEE ◽  
KALLOL BHATTACHARYYA ◽  
SUDARSHAN DUTTA ◽  
AMIT PHONGLOSA ◽  
...  
Keyword(s):  
Nutrient Management ◽  
West Bengal ◽  
Nutrient Use Efficiency ◽  
Nutrient Supply ◽  
Yield Response ◽  
Stay Green ◽  
Site Specific ◽  
Maize Hybrids ◽  
Supply Capacity ◽  
Indigenous Nutrient Supply

SUMMARYThe area under hybrid maize cultivation is increasing rapidly across South Asia. However, information regarding the proper nutrient management for modern stay-green maize hybrids in India is not adequate resulting in low productivity. Existing nutrient management practices are not able to capture the momentum change in the scenario of soil nutrient supply capacity and plant nutrient demand for achieving higher yield target. The present study aims at establishing the site-specific nutrient management (SSNM) package for an inceptisol (West Bengal, India). Soil indigenous nutrient supply capacity and nutrient use efficiency was also evaluated by using the nutrient omission plot technique. The experiment was laid out in strip-plot design, assigning three maize hybrids (P 3522, P 3396 and Rajkumar) in the vertical strip and nine fertilizer treatments [50% RDF/Recommended dose of fertilizer, 75% RDF, 100% RDF (200-60-60 kg N-P2O5-K2O ha−1), 125% RDF, 150% RDF, 100% PK, 100% NK, 100% NP and control (zero-NPK)] in the horizontal strip, with three replications. Results of the experiment revealed that the differences among cultivars were generally non-significant. The maize hybrids showed greater yield response to fertilization with N (4.14 Mg ha−1) during winter, followed by K (2.54 Mg ha−1) and P (1.58 Mg ha−1). Indigenous nutrient supply was estimated 107.2, 37.6 and 107.7 kg ha−1 for N, P and K, respectively. Both average agronomic efficiency (AE) and recovery efficiency (RE) were increased with 50% RDF and it decreased with further increase in NPK levels up to 150% RDF. The average internal efficiency (IE) was higher with 50% RDF closely followed by the treatment with absence of N. As grain yields and gross return over fertilizer (GRF) under 75 to 150% NPK treatments were similar, nutrient doses of 150 kg N, 45 kg P2O5 and 45 kg K2O ha−1 were recommended as optimum for maize hybrids.

scholarly journals Response of Rice (Oryza sativa L.) Hybrids under Different Nutrient Management Practices during Boro Season

2020 ◽  
pp. 157-163
Author(s):  
Biplab Show ◽  
Megha Sana ◽  
Sukanta Pal
Keyword(s):  
Grain Yield ◽  
Management Practices ◽  
Nutrient Management ◽  
West Bengal ◽  
Hybrid Rice ◽  
Block Design ◽  
Superior Performance ◽  
Nutrient Level ◽  
Yield Attributes ◽  
Full Dose

Aim: To study the effect of rice hybrids to different nutrient management practices to find out the most suitable nutrient management and variety for hybrid rice in new alluvial zone of west Bengal. Study Design: The experiment was laid out in Factorial Randomized Block Design (FRBD) with 20 treatment combinations with three replicates. Place and Duration of Study: Rabi seasons of 2011-12 and 2012-13 at Regional-Research Sub-Station (RRSS) Chakdaha of BCKV under new alluvial zone of West Bengal. Methods: Combinations having with five hybrid rice varieties viz., V1 (Winner), V2 (Champion) V3 (Raja), V4 (Karishma) V5 (KRH-2), and four nitrogen levels viz. N1 (150:75:75 N: P2O5: K2O Kg/ha), N2 (75%N of N1+ full dose of P2O5 & K2O as recommended in N1+ 25% N through FYM), N3 (50%N of N1+ full dose of P2O5 & K2O as recommended in N1+ 50% N through FYM), N4 (120:60:60 N: P2O5: K2O Kg/ha) Generally yield contributing characters were studied at maturity of the crop. For yield analysis samples were taken from each plot and yield attributes were calculated. Results: Experimental results revealed that almost all the growth parameters and yield attributes gave significantly superior performance in the variety Champion with N1 level of fertilization. The maximum grain yield (7.49 t ha-1) was recorded in the variety V2 in combination with N1 level of nitrogen. Highest harvest index (52.23%) was noticed in same treatment combination. Conclusion: It may be concluded that Champion can be recommended for South Bengal locations with N1 (i.e.150:75:75 N: P2O5: K2O Kg ha-1) nutrient level for maximum grain yield.

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