Response Of Foliar Application Research Articles

Growth traits and beet weight of tropical sugar beet responses to foliar application of boron

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh to assess the response of foliar application of boron on growth and beet weight. The experiment consisted of foliar application of boron at four concentrations viz. 0, 50, 100 and 150 ppm, and frequency of application thrice viz. once at 40 days after emergence (DAE), twice at 40 and 65 DAE and thrice at 40, 65 and 90 DAE. The experiment was laid out in a randomized complete block design with three replications. Growth traits and average beet weight were significantly influenced by boron concentration and frequency of application. At later stage of growth (at 140 days after sowing) the tallest plant, number of leaves/plants, shoot dry weight, root dry weight and root length were recorded in 150 ppm boron with three times foliar application at 40, 65 and 90 DAE. The highest average beet weight (1.04 kg/beet) was recorded in 150 ppm boron with foliar application thrice at 40, 65 and 90 DAE followed by 100 ppm boron with foliar application at 40, 65 and 90 DAE while the lowest one 0.28 kg/beet was found in control. So, from the result it can be concluded that 150 ppm boron with foliar application at 40, 65 and 90 DAE seems to be promising in terms of growth attributes and average beet weight/plant of tropical sugar beet.
 Res. Agric., Livest. Fish.8(2): 181-191, August 2021

GROWTH AND YIELD RESPONSE OF FOLIAR APPLICATION WITH MORINGA OLEIFERA LEAF EXTRACT ON OKRO

The use of chemical fertilizers to improve soil fertility, and hence, crop yield, have been reported to have adverse effects on agricultural products, man and his environment, hence, this research looked into the growth and yield response of foliar application with Moringa oleifera leaf extract on Okro. Different concentrations of Moringa leaf extracts at the rate of 5ml, 15ml and 25ml was assessed on the growth and yield of Okro using topsoil as the growing medium. The experiment was laid out in a randomized complete block design with three replicates. Growth and yield parameters were collected on plant height, number of leaves per plant, number of fruits per plant, and length of fruit per plant. Parameters measured were subjected to Analysis of Variance (ANOVA) for Completely Randomized Design (CRD) and means were separated using Duncan’s Multiple Range Test (DMRT) at 5% probability level. The results showed that the treatment with 25ml concentration has a more significant effect than others on Okro. Therefore, treatment with 25ml performed better than the other two treatments in the study area. Hence, this study recommends the foliar application of Moringa extract to farmers for improved yield and production of Okro.

Agronomic Bio-fortification of Rice and Maize with Iron and Zinc: A Review

Earlier, the agriculture system was oriented more towards achieving higher agronomic yields than the nutritional quality of food. Green revolution significantly enhanced the crop production primarily rice, wheat and maize production was boosted to meet the energy needs of growing population. As a consequence of the predominance of cereal-based staples that are fundamentally low in micronutrients, specifically Zn and Fe, more than 2 billion people worldwide suffer from an insidious type of deficiency known as micronutrient malnutrition. Just moderate amounts of micronutrient malnutrition can affect cognitive development, reduce disease resistance and increase the risk of women dying during childbirth. The approach to micronutrient fertilization has been shown to improve the yield and nutritional content of the staples. Agronomic biofortification provides an immediate and effective method to enhance accumulation of micronutrients especially Zn and Fe in cereals. An adequate amount of plant available micronutrients is a prime requisite to ensure adequate nutrient uptake. Most of the cereals are grown in soils deficit in Zn and under reduced conditions of rice ecosystem, its availability is decreased due to formation of less soluble Zn complexes with sulphate and carbonate. The form of fertilizer used, timing and method of application is critical for the enhancement of the grain quality of Zn and Fe. The effectiveness of agronomic biofortification can be enhanced by application of synthetic chelated micronutrient fertilizers and/or organic fertilizers fortified with micronutrients in combination with NPK ensuring proper nourishment of crops with adequate nutrient supply by slow release of nutrients in soil solution. Further, the response of foliar application has shown better results than soil application. Previous studies suggest that Zn fertilization not only enhances Zn concentration in grain but also improves the overall performance of maize crop. Agronomic biofortification of crops is advantageous in terms of accessibility, rapid result, ease in application and high sustainability.

Response of foliar application of calcium chloride and boric acid on fruit quality and leaf nutrient status of guava

Response of foliar application of calcium chloride and boric acid on fruit quality and leaf nutrient status of guava

Effect of Foliar Application of Micronutrients on Growth, Yield and Economics of Tomato (Lycopersicon esculentum Mill.)

A field experiment was conducted to find out the response of foliar application of micronutrients on growth, yield and economics of tomato (Lycopersicon esculentum Mill.) at collage orchard, Department of Vegetable Crops, HC & RI, Tamil Nadu Agricultural University, Coimbatore. The treatments consisted of boric acid @100 ppm, ZnSo4 @ 100 ppm, ammonium molybdate @ 50 ppm, copper sulphate @ 100 ppm, ferrous sulphate @ 100 ppm, manganese sulphate @ 100 ppm, mixture of all, mixture of all without B, mixture of all without Zn, mixture of all without Mo, mixture of all without Cu, mixture of all without Fe, mixture of all without Mn, commercial formulation (Multiplex) @ 4 ml/lit and control (without spray). The experiment was laid out in a randomized block design with three replications. All the micronutrients were sprayed individually and in combinations on tomato in three sprays at an interval of 10 days starting from 40 days after transplanting. The results revealed that spraying of mixture of all micronutrients (T7 ) 3 times at an interval of 10 days starting from 40 days after transplanting resulted in the highest plant height (95.7 cm), number of fruits per plant (46.4), fruit weight (61.9 g), fruit yield per plot (63.5 kg), yield/ha (564.1 q) and benefit cost ratio (3.04) followed by the spray of commercial formulation (Multiplex).

Effect of micronutrients on growth and yield of aonla (Emblicaofficinalis gaertn.) CV. Na-7

Aonla (Emblicaofficinalis Gaertn.) is one of the most important minor fruits of India, which is also known as Indian gooseberry which belongs to family Euphorbiaceae and is native to Central and Southern India. Though it is a hardy crop, growers are experiencing the problem of heavy premature fruit drop leading to reduced yield and sometimes reduced quality due to necrosis which may be due to difficiency of nutrients, particularly micronutrient. Hence, to sole this issue, the present study was conducted to asses the response of foliar application of different micronutrients on growth and yield of aonla cv. NA-7. The results revealed that the foliar spray of micronutrient combination of 0.5% ZnSO4 + 0.5% FeSO4 + 0.25% Borax significantly increased overall growth of plants, reduced the incidence of fruit drop (45.60% as against 79.63% in control) resulting in increased fruit set (53.73% as against 21% in control). The said combination of micronutrients was also associated with highest fruit weight (43.69 g), fruit length (3.78 cm), fruit diameter (4.93 cm) and yield (24.96 kg/plant).

Response of foliar application of NAA, GA3 and boric acid on vegetative growth and yield of strawberry (fragaria × ananassa duch) cv. chandler

Response of foliar application of NAA, GA3 and boric acid on vegetative growth and yield of strawberry (fragaria × ananassa duch) cv. chandler