Fermented compost and N-fertilizer for enhancing the growth and productivity of purple eggplant on vertisols

Abstract

The soil fertility and nutrient availability are limiting factors for growth and plant development. Fermented compost and nitrogen (N)-fertilizer are useful as sources of nutrients to support the growth of plant and microorganisms in soils. The combination of biological fertilizer and chemical fertilizer can support the concept of sustainable and integrated agriculture and minimize the adverse effects of chemical fertilizers. The research was conducted to get the recommended dose of fermented compost and N-fertilizer to increase the plant height and productivity of purple eggplant. The experiment was arranged as factorialized randomized block design and consisted of two factors and two replications, namely fermented compost dose (0, 5, 10, and 15 t ha−1) and N-fertilizer dose (0, 75, 150, and 225 kg ha−1). The observed responses were increase in plant height and productivity of purple eggplant. Compared to the control, the application of 15 t ha−1 fermented compost and 225 kg ha−1 N-fertilizer increased the plant height by 40.76% at 30 days after planting and 57.59% at 37 days after planting and increased the purple eggplant yield by 43.15%. BC ratio of the fermented compost (15 t ha−1) is 1.16 and BC ratio of the N-fertilizer (225 kg ha−1) is 1.09. Recommended dose to increase the plant height and productivity of purple eggplant in vertisol is 15 t ha−1 of fermented compost and 225 kg ha−1 of N-fertilizer.

Foliar nutrient supplementation with micronutrient-embedded fertilizer increases biofortification, soil biological activity and productivity of eggplant

“…Optimal nutrient supply is particularly important in crops like eggplant with a heavy nutrient demand 24 . In this experiment, the balanced supply of essential NPK macronutrients supplemented by micronutrients applied as foliar spray at critical growth stages significantly improved eggplant yield and growth parameters 25 , 26 .…”

Foliar Nutrient Supplementation with Micronutrient-Embedded Fertilizer Increases Biofortification in Eggplant Fruit and Soil Biological Activity While Enhancing Plant Productivity

“…Optimal nutrient supply is particularly important in crops like eggplant with a heavy nutrient demand 28 . In this experiment, the balanced supply of essential NPK macronutrients supplemented by micronutrients applied as foliar spray at critical growth stages signi cantly improved eggplant yield and growth parameters [29][30] .…”

“…Foliar application of nutrients, especially micronutrients at later crop stages is of prime importance in enhancing the crop yields and increasing the use e ciency of micronutrients 31 . Moreover, absorption of foliar-applied nutrients is much faster than those applied into the soil [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] . During reproductive stages, roots are less e cient and nutrients are transported from leaves to grain or fruit 33 .…”

Effect of Bokashi Fertilizer on Increasing Soil Nutrients and Growth of Medicinal Plants

“…Several studies indicate the use of Bokashi of cow manure, namely: bokashi of cow manure treatment at dose of 3 t ha -1 combined with NPK inorganic fertilizer application of 200 kg ha -1 can reduce the evaporation rate and soil temperature fluctuation, and also increase the yield of shall [7], the addition of cow dung as the organic fertilizer as much as 1 ton/ha to the soil could cause an increase in the yield of grain by 0.097 ton/ha [14], the treatment of 15 t ha −1 cow manure accompanied by 225 kg ha −1 N-fertilizer gives a highest plant height than the other treatments and providing bokashi cow manure can increase the fruit length per plant, which is higher and significantly different compared to the control [15].…”