<i>Effects of fertilizer application rates for key growing stages on maize growth and yield in sub-humid Northeast China</i>

2020 ◽  
Author(s):  
Xiaodong Bo ◽  
Jiusheng Li ◽  
Yanfeng Li ◽  
Jun Wang
Keyword(s):  
Northeast China ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Maize Growth ◽  
Application Rates

scholarly journals Effects of Groundnut Shell Incorporation Rates on the Growth and Yield of Maize (Zea mays L.) in Mubi, Adamawa State, Nigeria

2021 ◽  
pp. 18-24
Author(s):  
I. R. Danbima ◽  
I. J. Tekwa ◽  
A. T. Gani
Keyword(s):  
Plant Height ◽  
Growth Parameters ◽  
Block Design ◽  
Growth And Yield ◽  
Area Index ◽  
Maize Growth ◽  
Application Rates ◽  
Number Of Leaves ◽  
Maize Plants ◽  
Groundnut Shell

Purpose: The aim of the study was to assess the effects of groundnut shell incorporation rates on the growth and yield of maize. Research methods: The study was carried out at the students’ demonstration farm of the Federal Polytechnic, Mubi, Adamawa State, in 2018. Seeds were sown on a prepared land treated with four (4) doses of groundnut shells (0, 25, 50 and 75 tons/ha) arranged in a randomized complete block design (RCBD), replicated 4 times. Each plot was marked out at 2.0 m length × 2.0 m width with 0.5 m gap between the replicated plots and blocks. Maize growth parameters were determined at 2, 4, 6 and 8 weeks after sowing and maize yield parameters were determined at 10 and 12 weeks after sowing (WAS). Findings: The groundnut shell application rates increased maize growth parameters such as, plant height, number of leaves per plant, leave area index, and stem girth, number of cobs per plant and cobs weight. The results revealed that plant height, number of leaves, leaf area index and stem girth were significantly (P≤ 0.05) influenced by the treatments, except for the control treatment at 2- WAS. The higher application rates (50 and 75 t/ha) of groundnut shell significantly (P≤ 0.05) influenced the plant growth components better than the 25 and 0 t/ha treatment rates. Research limitations: There were no limitations to report. Originality/Value: The results suggests that groundnut shell incorporation rate at 50 t/ha could be recommended as the most appropriate and profitable for high performance of maize plants in Mubi. The results generally suggest that maize plants may tolerate even higher rates of groundnut shell incorporation beyond the rates used in the study.

scholarly journals Optimization of Zinc Application Rates With and Without Arbuscular Mycorrhizal Fungi for the Improvement in Maize Growth, Gas Exchange Attributes and Yield in Zinc Deficient Soil

2020 ◽  
Author(s):  
Subhan Danish ◽  
Abdul Saboor ◽  
Muhammad Arif Ali ◽  
Niaz Ahmed ◽  
Milan Skalicky ◽  
...  
Keyword(s):  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Growth And Yield ◽  
Total Soluble Protein ◽  
Stress Inoculation ◽  
Zn Deficiency ◽  
Maize Growth ◽  
Application Rates ◽  
Arbuscular Mycorrhiza Fungi ◽  
Biological Yield

Abstract Zinc (Zn) concentration in soil varies from deficient to toxic. Its deficiency, as well as toxicity through imbalance application, can reduce maize growth and yield. Therefore, balanced application of Zn is a necessity of time to save resources and to achieve optimum growth and yield in maize. Arbuscular mycorrhiza fungi (AMF) can provide tolerance to host plant against Zn induced stress. Inoculation of AMF not only helps in balance uptake of Zn but also enhance growth and yield of crops. That’s why in the current efficacious function of AMF, i.e., Glomus specie was assed. Different application rates of Zn (0, 20, 40, 60, 80, 100 and 120 mg Zn/kg) were applied with AMF (AM) and without AMF (NM). Results showed that root colonization level was 45% higher in AMF inoculated plants as compared with non-inoculated plants. A significant increase in plant height (15%), number of leaves (35.4%), cob weight (4.39%), 1000 grains weight (10.5%) and biological yield (42.2%) signified the efficacious functioning of Zn20+AM over sole inoculation of AM. We also observed that AMF inoculation with Zn20 helped in improved photosynthesis, transpiration and stomatal conductance. Furthermore, both Zn20+AM and Zn20+AM were significantly better for the improvement in total soluble protein over AM in maize. Higher application rates of zinc, i.e., Zn80 and Zn120 induced Zn toxicity with (AM) and without (NM) AMF. In conclusion, Zn20+AM is an effective amendment to achieve better growth and yield of maize without Zn deficiency or toxicity.

EFFECT OFGLOMUS MOSSEAEON MAIZE GROWTH AT DIFFERENT ORGANIC FERTILIZER APPLICATION RATES

2012 ◽  
Vol 35 (2) ◽  
pp. 165-175 ◽  
Author(s):  
Gui Yun Zhang ◽  
Wei Ran ◽  
Li Ping Zhang ◽  
Qi Wei Huang ◽  
Ming Feng Wie ◽  
...  
Keyword(s):  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Maize Growth ◽  
Application Rates

scholarly journals Response of Acala Cotton to Nitrogen Rates in the San Joaquin Valley of California

2001 ◽  
Vol 1 ◽  
pp. 691-698
Author(s):  
R.B. Hutmacher ◽  
R.L. Travis ◽  
R.L. Nichols ◽  
D.E. Rains ◽  
B.A. Roberts ◽  
...  
Keyword(s):  
Fertilizer Application ◽  
N Fertilization ◽  
Growth And Yield ◽  
Residual Soil ◽  
Cotton Lint ◽  
Nitrate N ◽  
Application Rates ◽  
Cotton Lint Yield ◽  
Yield Responses ◽  
Nitrogen Rates

The responses of Acala cotton (Gossypium hirsutum L.) in California to a range of applied nitrogen (N) treatments were investigated in a 5-year, multisite experiment. The experiment’s goals were to identify crop growth and yield responses to applied N and provide information to better assess the utility of soil residual N estimates in improving fertilizer management. Baseline fertilizer application rates for the lowest applied N treatments were based on residual soil nitrate-N (NO3-N) levels determined on soil samples from the upper 0.6 m of the soil collected prior to spring N fertilization and within 1 week postplanting each year. Results have shown positive cotton lint yield responses to increases in applied N across the 56 to 224 kg N/ha range in only 41% (16 out of 39) of test sites. Soil NO3-N monitoring to a depth of 2.4 m in the spring (after planting) and fall (postharvest) indicate most changes in soil NO3-occur within the upper 1.2 m of soil. However, some sites (those most prone to leaching losses of soluble nutrients) also exhibited net increases in soil NO3-N in the 1.2- to 2.4-m depth zone when comparing planting time vs. postharvest data. The lack of yield responses and soil NO3-N accumulations at some sites indicate that more efforts should be put into identifying the amount of plant N requirements that can be met from residual soil N, rather than solely from fertilizer N applications.

Fertilizer Rate for Optimum Growth and Yield of Egusi Melon (ColocynthiscitrullusL.)/ Hot Pepper (Capsicum chinense, Jackquin cv. rodo) Intercrop

2021 ◽  
Author(s):  
Anjola S. Aninkan ◽  
Eyitayo A. Makinde
Keyword(s):  
Leaf Area ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Natural Fertility ◽  
Hot Pepper ◽  
Pepper Plant ◽  
Fertilizer Rate ◽  
Application Rates ◽  
Significant Difference ◽  
Fertilizer Rates

The use of chemical fertilizers as a supplemental source of nutrients has been on the increase but they are not applied in balanced proportion by most farmers [1]. Also, fertilizer requirements of the mixed intercropping systems have been a matter of conjecture; some studies had suggested that fertilizer requirements of the dominant component be applied [2], others recommend that the sum of the sole crop requirements, be applied [3]. Teriah [4], however, stated that both practices have proved either inadequate or wasteful. In this experiment the effects of different rates of NPK 15-15-15 fertilizer application on growth and yield of hot pepper and Egusi melon in an intercropping system was examined to determine optimum rate for production. The experiment was carried out at the Teaching and Research Farm of the Federal University of Agriculture Abeokuta, in the south western part of Nigeria. It took place from March to October 2017 during the growing season. The experiment was laid out in a Randomized Complete Block Design (RCBD) with 5 treatments (fertilizer rates) and 3 replicates. Treatments were; 0, 100, 200, 300 and 400 kg/ha of NPK 15-15-15 applications. Plot size was 3m by 3m with a 1.5m gang way round each plot to reduce inter-plot effect. Data were collected on growth parameters at 6 weeks after treatment (WAT) and continued at two-week intervals until 10 WAT. Four plants each of pepper and Egusi melon from the inner rows were randomly selected and tagged for the purpose of data collection. Data on yield were also collected at ripening. Analysis of variance (ANOVA) was carried out on each observation and the Least Significant Difference (LSD) was used for means separation (P≤0.05). The effects of fertilizer rates showed significant difference on pepper plant height, number of leaves, number of branches and leaf area. However, there was no significant difference in the effect of fertilizer rate on days to 50% flowering of pepper. Number of vines and vine length of Egusi melon were significantly different in their responses to fertilizer rates but the leaf area and days to 50% flowering of melon were similar at the various treatment levels. Meanwhile, total fruit yield of pepper, number of Egusi melon pods per hectare and the dry matter yield of Egusi melon showed significant difference. It was concluded from the study that the growth and yield of pepper and Egusi melon in intercrop increased with increase in fertilizer rate up to 400Kg/ha of NPK (15:15:15). However, higher fertilizer application rates should be explored in future studies for a better yield increase. These studies should be carried out with various compositions of inorganic and organic fertilizer application rates to ensure sustainable fertilizer application and to also preserve the natural fertility of the soil.

scholarly journals Influence of Different Rates of Fertilizer and Biochar on Growth and Yield of Carrot (Daucus carota) in the Forest-Savannah Transitional Zone of Ghana

2020 ◽  
pp. 21-39
Author(s):  
Kwaku Asante ◽  
Margaret Esi Essilfie ◽  
Joseph Manu-Aduening
Keyword(s):  
Daucus Carota ◽  
Block Design ◽  
Total Yield ◽  
Field Studies ◽  
Transitional Zone ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Soil Variables ◽  
Application Rates ◽  
Net Assimilation

Two field studies to evaluate the effect of biochar and fertilizer application rates on soil and on the growth and yield of carrot (Daucus carota) were carried out in 2016 and 2017 at Mampong-Ashanti in the forest-savannah transitional zone of Ghana. Three rates of biochar - 0, 5 and 10 tons ha-1 and five rates of inorganic fertilizers - NPK 15:15:15 at 200 kg ha-1; P&K 50:50 at 50 kg ha-1; P&K 50:100 at 50 kg ha-1; Liquid Fertilizer at 1 L: 200 L water ha-1; and the control - were applied using 3×5 factorial arranged in a randomized complete block design with 3 replicates. The analysis showed significant (P<0.01) interaction of fertilizer × biochar on bulk density, soil porosity, soil pH, organic carbon, total nitrogen and organic matter producing both positive and negative correlations between the soil variables and on total yield, partitioning coefficient and net assimilation rate. The significant two-way interactions and correlation results underscored the need to define expected production outcomes to inform which soil management system is needed to promote sustainable agriculture as different fertilizer and biochar rates affect growth and yield parameters differently.

scholarly journals Biofertilizer-Based Zinc Application Enhances Maize Growth, Gas Exchange Attributes, and Yield in Zinc-Deficient Soil

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 310
Author(s):  
Abdul Saboor ◽  
Muhammad Arif Ali ◽  
Niaz Ahmed ◽  
Milan Skalicky ◽  
Subhan Danish ◽  
...  
Keyword(s):  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Maize Yield ◽  
Growth And Yield ◽  
Total Soluble Protein ◽  
Stress Inoculation ◽  
Zn Deficiency ◽  
Maize Growth ◽  
Application Rates ◽  
Biological Yield

Zinc (Zn) concentration in soil varies from deficient to toxic. Its deficiency, as well as toxicity, through imbalanced application and cropping in industrial sites can reduce maize growth and yield. Therefore, balanced Zn application is necessary to save resources and achieve optimum growth and yield in maize. Arbuscular mycorrhizal fungi (AMF) can provide tolerance to the host plant against Zn-induced stress. Inoculation with AMF helps in regulating the uptake of Zn and enhances the growth and yield of crops. Different application rates of Zn (0, 20, 40, 60, 80, 100, and 120 mg Zn kg−1) were applied with inoculation with AMF (AM) and without AMF (NM). Results showed that root colonization was 45% higher in AMF-inoculated plants than non-inoculated plants. A significant increase in plant height (15%), number of leaves (35.4%), cob weight (4.39%), 1000-grain weight (10.5%), and biological yield (42.2%) signified the efficacious functioning of Zn20 + AM over sole inoculation with AM. We also observed that AMF inoculation with Zn20 helped to improve photosynthesis, transpiration, and stomatal conductance. Furthermore, both Zn20 + AM and Zn20 + AM significantly increased total soluble protein compared with AM. Higher application rates of zinc, i.e., Zn80 and Zn120, induced Zn toxicity with (AM) and without (NM) AMF. In conclusion, Zn20 + AM is an effective treatment to achieve better growth and maize yield without Zn deficiency or toxicity.

scholarly journals Effects of soil nutrient amendments on growth and grain yield performances of quality protein maize grown under water deficit stress in Ibadan, Nigeria

2021 ◽  
Vol 117 (4) ◽  
pp. 1
Author(s):  
Folake Bosede ANJORIN ◽  
Adeyinka ADEBAYO ◽  
Taiwo OMODELE ◽  
Adewale ADETAYO ◽  
James ADEDIRAN
Keyword(s):  
Grain Yield ◽  
Water Deficit ◽  
Crop Production ◽  
Soil Nutrient ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Water Deficit Stress ◽  
Quality Protein Maize ◽  
Application Rates ◽  
Nutrient Amendment

<p class="042abstractstekst">Drought and poor soil fertility are major limitations to crop production, globally. To investigate the impacts of water deficit stress (WS) and soil nutrient amendment (SA) on growth and yield performances of maize. A two years factorial field study was carried out, using a quality protein maize (QPM) (ILE-1-OB) and a non QPM–drought tolerant check (TZPBSR-W) varieties in Ibadan. Treatments include; six fertilizer application rates; 50 and 100 (kg N ha<sup>-1</sup>) ofNPK-20-10-10, 10.7 kg N ha<sup>-1</sup>of Tithonia Poultry Compost (TPC), 50 N + 10.7TPC and 100 N + 10.7TPC (kg N ha<sup>-1</sup>), three WS; the control (FW), WS at vegetative stage (STR1), and WS at reproductive stage (STR2). Leaf area (LA) and grain yield (GY) were measured using standard procedures. From the results, across WS, LA ranged from STR1 (458.90 ± 12.4) to FW (598.81 ± 13.1 cm<sup>2</sup>), GY varied from STR2 (2.94 ± 0.2 t ha<sup>-1</sup>) to FW (6.59 ± 0.2 t ha<sup>-1</sup>), across fertilizers, LA varied from 0 N (397.65 cm<sup>2</sup>) to 100N + 10.7TPC (622.71 cm<sup>2</sup>) and 50 N + 10.7TPC (611.03 cm<sup>2</sup>), respectively. The GY varied from 0 N (2.37 t ha<sup>-1</sup>) to 100 N + 10.7TPC (5.82 t ha<sup>-1</sup>) and 50N + 10.7TPC (5.26 t ha<sup>-1</sup>).<strong> </strong>Drought stress reduced growth and GY performances of QPM, while SA with 50 kg N ha<sup>-1</sup> of inorganic fertilizer and 10.7 kg N ha<sup>-1</sup> of<em> </em>TPC enhanced growth and grain yield of maize under WS.</p>

Maize Growth and Yield Following Late Summer Hail

Crop Science ◽  
1994 ◽  
Vol 34 (5) ◽  
pp. 1400-1403 ◽  
Author(s):  
L. M. Dwyer ◽  
D. W. Stewart ◽  
L. Evenson ◽  
B. L. Ma
Keyword(s):  
Late Summer ◽  
Growth And Yield ◽  
Maize Growth
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