Growth Parameters, Irrigation Requirements and Productivity of Maize in Relation to Sowing Dates Under North-Delta of Egypt Conditions

Hegab, Ahmed S.; Fayed, M. T.; Hamada, Maha M. A.; Abdrabbo, M. A. A.

doi:10.21608/ajs.2019.43523

Cited by 5 publications

(8 citation statements)

References 3 publications

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“…This implies that early sowing date of maize with longer co-growth period with beans allows it to good growth and increase of plant height. This result accordance with the findings of Hegab et al (2019) which reported higher height of maize were observed with early planting date of maize. While, the highest values of active leaves 7.64 and 6.87 and the lowest values being 2.97 and 5.04 were recorded with T2 and T3 in 1st and 2nd seasons, respectively.…”

Section: Maize Yield and Yield Componentssupporting

confidence: 93%

“…Those higher N levels will have more green leaves and higher photosynthetic capacity than the lower N levels. Results are in line with Hegab et al (2019) who reported that increase number of green leaves/plant resulting in good photosynthetic accumulated in leaves and their transfer to economic parts like grains and ears. Besides, it is obvious from the results there were no significant differences in grain yield and its attributes especially, ear weight, grain ear weight, ear length and grains No.…”

Section: N Fertilizer Levels Of Maizesupporting

confidence: 91%

“…Also, result suggested that number of green leaves were associated with sowing date, due to changes in climate (Table 2). According to Hegab et al (2019) late planting of maize terminated vegetative growth and resulted in shorter plant with fewer and smaller leaves.…”

Section: Maize Yield and Yield Componentsmentioning

confidence: 99%

“…Also, these increment in the yield and yield components of maize in T2 might be due to the high available N concentration in the soil (Table 4) compared to T1, and the favorable growing conditions (Table 2) compared to T3. Hegab et al (2019) the relationships between planting date and climate for maize can be useful for estimating planting dates in regions.…”

Section: Maize Yield and Yield Componentsmentioning

confidence: 99%

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Relay intercropping of maize with common dry beans to rationalize nitrogen fertilizer

El-Mehy

Shehata

Mohamed

et al. 2023

Front. Sustain. Food Syst.

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Maize (Zea mays L.) and dry beans (Phaseolus vulgaris L.) are important staple food and cash crops worldwide. Common bean in an intercrop with maize contributes to biological nitrogen fixation, which stabilize productivity of cropping systems and reduce negative environmental impacts and loss of biodiversity for sustainable agriculture. A field experiments was performed during the years of 2020 and 2021 at Sers El-Layian Station, northern Egypt. The current study aiming to study the effect of three sowing dates of maize, represent 3 co-growth duration [T1: at flowering stage (FS) of common beans (60 days co-growth duration), T2: 15 days after FS (45 days co-growth duration), and T3: 30 days after FS (30 days co-growth duration with beans)] and three N fertilizer levels (N1: 190.4, N2: 238.0, and N3: 285.6 kg N/ha of maize) on productivity, profitability and N fertilizer rationalization. The longest co-growth duration of maize intercropping with common beans (T1) significantly (P ≤ 0.05) decreased common beans and maize yields compared with T2 and T3. Performance of common beans did not show (P ≤ 0.05) any variation under different N fertilizer levels of maize. Significant (P ≤ 0.05) increase in maize yield and its components with raising N fertilizer level up to N3. Although there was no significant variation in maize yield when applied N2 and N3, however, nitrogen use efficiency (NUE) was significant (P ≤ 0.05) higher in N2 than N3 by 18.34%. Regardless of planting time and N fertilizer level of maize, combined productivity of common beans and maize increased in the intercropped system as cleared by higher total land equivalent ratios (LER) and area time equivalent ratios (ATER). Highest LER value 1.99 was observed at the shortest co-growth period T3 under N3 followed by 1.97 with N2. Positive values in the actual yield loss index (AYL) indicated intercropping advantage. Different competition indices showed a greater dominance of maize over common beans (aggressivity, Ag; competitive ratio, CR; actual yield losses, AYL). However, the intercropping systems increased the economic advantage (intercropping advantage index, IAI and monetary advantage index MAI) over monoculture. These results imply that shortening the period of co-growth maize with common beans (T3) and applying 238.0 kg N/ha in the relay intercropping system reduced mineral N fertilizer use by 16.67% compared to the advised level 285.6 kg N/ha along with increased productivity per unit area and economic advantages for small-farmer.

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Section: Maize Yield and Yield Componentssupporting

confidence: 93%

Section: N Fertilizer Levels Of Maizesupporting

confidence: 91%

Section: Maize Yield and Yield Componentsmentioning

confidence: 99%

Section: Maize Yield and Yield Componentsmentioning

confidence: 99%

See 2 more Smart Citations

Relay intercropping of maize with common dry beans to rationalize nitrogen fertilizer

El-Mehy

Shehata

Mohamed

et al. 2023

Front. Sustain. Food Syst.

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“…Insufficient water supplies for irrigation in several agricultural areas of Egypt over the past ten years have become the rule, rather than the exception. (Hegab, et al, 2019). As a result, increasing the food production with the lowest water use is a great challenge that all sectors of agriculture must overcome by enhancing crop water productivity, which will either produce similar food quantity with less water resources or more food with the same resources (Ding, et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Influence of Irrigation Levels on Morphological Attributes and Yield of Tomato under Current and Climate Change Conditions

Abdoun,

Darwish,

Hashem

et al. 2023

J. Ecol. Eng.

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Water shortage consider on of the main threats facing the agriculture, mainly in the Mediterranean area. So that there is a great need to apply new methods to water resource management. The crop models are used to achieve this objective. Tomato is a significant v egetable c rop g lobally a nd r epresent a n i mportant p art o f horticultural production with 180 million tons produced on over five million hectares even though few studies have validated the AquaCrop model, especially in Egypt. This study was conducted in a protected cultivation experimental farm, Agricultural Research Center (ARC), Dokki, Giza, Egypt during the winter seasons of 2019/2020 and 2020/2021. Different irrigation levels (IL): 55%, 70%, 85%, 100%, and 115% of evapotranspiration (Eto) were applied on tomato. Plant growth parameters, relative chlorophyll content (SPAD), yield, fruit quality and plant nutrients (NPK) were recorded at both seasons. Also, the aforementioned irrigation levels were used to validate the AquaCrop model on different climate change scenarios on tomato productivity in 2050 and 2100. The findings revealed that the highest plant growth parameters were obtained in 85% and 100% Eto as compared to all treatments at both seasons. In contrast, the 55% of Eto obtained the lowest values of all plant growth parameters. The number of fruits/ plant, early yield, and total yield of 100% Eto were ranked secondly. Fruits quality was significantly affected by the tested ILs. The highest values of TSS, firmness and vit C of tomato fruits were obtained by 55% followed by 70% Eto. The lowest proline content was recorded at 115% of Eto in both seasons. The content of proline in plants of 70% Eto ranked secondly after 55% of Eto in both seasons. The results of AquaCrop model (Version 7.0) revealed that the crop productivity decreased by 4% and 33% of RCP4.5 and RCP8.5 scenarios, respectively, of the years 2050, 14% and 44% for the same scenarios, respectively, of the year 2100.

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Beneficial effects of antitranspirants on water stress tolerance in maize under different plant densities in newly reclaimed land

Morsy

Mehanna²

2022

Bull Natl Res Cent

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Background The global freshwater shortage is an important issue threatening the sustainable development of agriculture and food security. A field study was conducted in two seasons, i.e., 2019 and 2020, in the newly reclaimed land at Village 8, El-Minia Governorate, Egypt, to evaluate maize crop response to three irrigation levels (IL1 = 80, IL2 = 70, and IL3 = 60% of the crop evapotranspiration “ETc”), three plant densities (PD1 = 17.500, PD2 = 23.333, and PD3 = 35.000 plants fed−1), and three antitranspirants treatments (An1 = control, An2 = kaolin at 6%, and An3 = chitosan at 150 L fed−1). The experiment was designed as a randomized complete block design (RCBD) using a split plot in strips. Results Results revealed that the irrigated maize plants with IL1 (80% of ETc) recorded the maximum values for all traits such as vegetative growth, phenology, and yield and its attributes in both seasons. The heaviest value of grain yield (3.15 and 3.10 tonnes fed−1, where 1 feddan = 0.42 hectare) was realized from IL1 treatment in the 1st and 2nd seasons, respectively. Plant density of 35.000 plants fed−1 (PD3) produced the greatest values of leaf area index (6.70 and 6.85), more days to 50% for each of tasseling (62.16 and 61.99 days), and silking (63.63 and 63.73 days), heaviest grain yield (3.11 and 3.16 ton fed−1) and greater water use efficiency WUE (1.46 and 1.48 kg m−3) in both seasons, respectively. Conclusions Foliar spraying with antitranspirants, i.e., kaolin at 6%, led to a tremendous impact on all studied traits by alleviating the water stress and reducing the rate of transpiration. The effect of second-order interaction among IL1 × PD3 × An3 indicated a significant increase in grain yield by 69.91% as compared with the interaction of IL3 × PD1 × An1 in the 2020 season only. CS 10 single-cross maize realized the highest productivity and most efficient use of available resources via using a sowing density of 35.000 plant fed−1, foliar spraying with kaolin at 6%, and irrigation level (80% of ETc) under El-Minia conditions.

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Growth Parameters, Irrigation Requirements and Productivity of Maize in Relation to Sowing Dates Under North-Delta of Egypt Conditions

Cited by 5 publications

References 3 publications

Relay intercropping of maize with common dry beans to rationalize nitrogen fertilizer

Relay intercropping of maize with common dry beans to rationalize nitrogen fertilizer

Influence of Irrigation Levels on Morphological Attributes and Yield of Tomato under Current and Climate Change Conditions

Beneficial effects of antitranspirants on water stress tolerance in maize under different plant densities in newly reclaimed land

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