Enhancing Growth, Yield Components and Chemical Constituents of Chilli (Capsicum annuum L.) Plants by Using Different NPK Fertilization Levels and Nano-Micronutrients Rates

Abstract

The application of Nano micronutrient fertilizers could improve nutrient use efficiency that reduces the dosage of NPK fertilizers. This study aims to find out the best combination of NPK and Nano micronutrients fertilizers on growth, yield and quality of red hot chilli pepper. A field study was conducted on chilli (Capsicum annuum L.) fertilized by different NPK fertilization levels (0.0, 50, 75 and 100% of recommended levels) and sprayed by different Nano micronutrients rates (0.0, 0.25 and 0.50 g/l) during the two summer consecutive seasons of 2017 and 2018 at Agriculture Research. Farm (Ghazala Farm), Faculty of Agriculture., Zagazig University., Egypt, The recommended dosage was 218. N+ 36 P +142 K kg/ha and Nano-micronutrient fertilizer that was used contained (6% Fe, 6% Zn, % B, 5% Mn, 1% Cu and 0.1% Mo). The experimental design was a split-plot arranged in a three replicates. The main plots were assigned for four NPK fertilization levels and sub plot were devoted for three Nano-micronutrients rates. The results pointed out that the vegetative growth significantly increased by NPK fertilization at 100 or 75% RLs as well as Nano-micronutrients at 0.5 g/l rate and in combination compared to control (0NPK, 0 Nano-micronutrients). Yield components and chemical constituents were increased gradually by increased NPK fertilizers levels during the two seasons. The best combination treatment in this connection was 100% RLs of NPK fertilizers combined with 0.5 g/l of Nano-micronutrients compared to the other ones under study that increased the yield and capsaicin by 75% of NPK and 0.5 g/l of Nano than control, respectively.

Improving Growth and Productivity of Safflower (Carthamus tinctorius L.) Plant by Utilizing L-Tryptophan and Phenylalanine Acids under Different Potassium Fertilizer Rate

“…Moreover, chemical constituents of safflower was increased as a result of the treatment of L-tryptophan + phenylalanine each at 150 ppm combined with K fertilization rates in comparison to those K alone or those of the other ones of combination between amino acids and fertilization in both seasons. However, Ahmed and Abdelkader (2020) indicated that chemical constituents in chilli fruits were significantly increased by using 100% recommended rate of NPK fertilizers compared to control. Also, Massoud et al (2020) found that foliar spaying with both tryptophan and glycine amino acids caused a pronounced increase in chemical constituents as compared to feverfew plants sprayed with control.…”

Improving Growth and Quality of Seashore Paspalum By Nano -Micronutrients under Soil Salinity Stress تحسین نمو وجودة نجیل جزر البحر باستخدام العناصر الصغرى متناهیة الصغر تحت ظروف إجهاد ملوحة التربة

“…Also, Abdel-kader et al (2014) found that herb fresh and dry weights/plant of lemongrass plants were significantly increased by the micronutrients mixture as foliar application compared to control. Moreover, Ahmed and Abdelkader (2020) showed that the chilli vegetative growth significantly increased by nano-micronutrients at 0.5 g/l rate compared to control. These results are in line with those found by Gomaa et al (2020) on maize.…”

Effect of Zinc Applications on the Productivity of Thompson Seedless Grapevines

“…The highest yield (kg/vine) and heaviest cluster weight were correlated with nano zinc oxide treatment at 2 ppm, followed by zinc sulfate at 100 ppm, chelated zinc at 100 ppm, and chelated zinc at 200 ppm, in that order. Ahmed and Abdelkader (2020), who stated that by making it simpler for plants to absorb nutrients, nanofertilizers speed up photosynthesis and the production of dry matter. Furthermore, applying nanofertilizers to agriculture has several advantages, including faster plant absorption, enhanced development, and greater harvests (Shareef et al, 2021).…”