Effect of partial substitution of bulk urea by nanoparticle urea fertilizer on productivity and nutritive value of teosinte varieties

Salama, Heba; Badry, Hala Hassan

doi:10.15159/ar.20.189

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…Similarly, the application of nano NPK in chitosan formulations increased the content of N (17.04%), P (16.31%), and K (67.50%), in addition to promoting vegetative growth and chlorophyll content in Coffea arabica plants [ 20 ]. [ 21 ] reported the partial substitution of urea with urea-NPs in Zea mexicana plants, observing that the combination of both sources (50% conventional urea-50% urea NPs) showed higher levels of vegetative growth, in addition to increasing crude protein, carbohydrates, and detergent fiber.…”

Section: Introductionmentioning

confidence: 99%

ZnO nanoparticles as potential fertilizer and biostimulant for lettuce

Garza-Alonso

Juárez-Maldonado

González-Morales

et al. 2023

Heliyon

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Section: Introductionmentioning

confidence: 99%

ZnO nanoparticles as potential fertilizer and biostimulant for lettuce

Garza-Alonso

Juárez-Maldonado

González-Morales

et al. 2023

Heliyon

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“…Nitrogen (N) is an essential nutrient for crop growth and development, and in addition it is a basic input in the Egyptian farming system [23]. To achieve the maximum productivity from an intercropping practice, N needs to be carefully adjusted in terms of its rate and time of application [24].…”

Section: Introductionmentioning

confidence: 99%

Intercropping Pattern and N Fertilizer Schedule Affect the Performance of Additively Intercropped Maize and Forage Cowpea in the Mediterranean Region

2022

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Intercropping maize and forage cowpea is a widely proposed strategy to improve land use efficiency, and maximize the economic value of the farming system, especially in developing countries with restricted resources. The current study was carried out during the successive summers of 2020 and 2021 in Northern Egypt. The main objective was to evaluate the effect of three N schedules (NS1, NS2, NS3), when three different maize–cowpea intercropping patterns (IP1, IP2, IP3) were applied, on the grain yield of maize, forage yield and quality of forage cowpea. In addition, yield gain and land use efficiency were evaluated using the land equivalent ratio (LER) and dry matter equivalent ratio (DMER) indices. Results revealed that the intercropping patterns that provided wider spacings for the component crops and reduced the competition between them, mainly IP3, resulted in the best performances for the two crops. This was clear for maize ear and grain yields, 100-grain weight and harvest index, in addition to cowpea fresh and dry forage yields, crude protein and non-fiber carbohydrates of the three cuts. Regarding the applied N schedules, NS1 which included the application of a N starter dose with sowing proved to be the most efficient schedule that led to the best performance for both crops. Maize produced 9.07 t ha−1 grain yield under IP3 and NS1. In addition, the application of IP3 resulted in the highest significant cowpea dry forage yield (DFY), with the highest crude protein (CP) content. The DFY of cuts 1, 2, and 3 amounted to 1.27, 0.45, and 0.24 t ha−1, while the CP content for the three respective cuts reached 159.49, 157.96, and 148.91 g kg−1. Nonetheless, NS1 produced a reasonable amount of DFY with high CP content. It is recommended to follow the third proposed intercropping pattern (IP3) and to include a nitrogen starter dose (NS1) in the fertilization scheme to ensure highest productivity from the intercropped maize and forage cowpea.

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Alleviating summer heat stress in cowpea-baby corn intercropping with stress-reducing chemicals and fertility variations

Bijarnia,

Tetarwal,

Gupta

et al. 2024

Sci Rep

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Over the past century, the average surface temperature and recurrent heatwaves have been steadily rising, especially during the summer season, which is affecting the yield potential of most food crops. Hence, diversification in cropping systems with suitable fertilizer management is an urgent need to ensure high yield potential during the summer season. Since intercropping has emerged as an important strategy to increase food production, the present study comprises five intercropping systems in the main plot (sole cowpea, sole baby corn, cowpea + baby corn in 2:1, 3:1, and 4:1 row ratio), three levels of fertilizer viz. 100 (N20 P40), 125 (N25 P50), and 150% (N30 P60) recommended dose of fertilizer (RDF) in the subplot, along with two stress-mitigating chemicals (0.5% CaCl2 and 1% KNO3) in the sub-sub plots. A split-split plot system with four replications was established to carry out the field experiment. The effect of intercropping, fertilizer levels, and stress-mitigating chemicals on crop growth rate (CGR), relative growth rate (RGR), plant temperature, relative water content (RWC) and chlorophyll content of cowpea and baby corn, as well as cowpea equivalent yield (CEY), was investigated during the summer seasons of 2019 and 2020. The experiment was conducted at Agriculture University, Kota (Rajasthan), India. Results showed that CGR, RGR, RWC and chlorophyll content of both crops and CEY were maximum under intercropping of cowpea and baby corn in a 2:1 row ratio compared to other intercropping systems. However, the plant temperature of both crops was significantly lower under this system. CEY, CGR, RGR, and chlorophyll content were considerably greater in the subplots with a fertilizer application of 150% RDF compared to lower levels of fertilizer (100 and 125% RDF). Our findings further show that foliar application of CaCl2 0.5% at the flowering and pod-developing stages of cowpea dramatically boosted CEY, CGR, RGR, RWC, and chlorophyll content of both crops and lowered the plant temperature.

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Effect of partial substitution of bulk urea by nanoparticle urea fertilizer on productivity and nutritive value of teosinte varieties

Cited by 3 publications

References 22 publications

ZnO nanoparticles as potential fertilizer and biostimulant for lettuce

ZnO nanoparticles as potential fertilizer and biostimulant for lettuce

Intercropping Pattern and N Fertilizer Schedule Affect the Performance of Additively Intercropped Maize and Forage Cowpea in the Mediterranean Region

Alleviating summer heat stress in cowpea-baby corn intercropping with stress-reducing chemicals and fertility variations

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