The effects of humic acid derivatives on the yield and quality of Kennebec and Sebago potatoes

1977 ◽  
Vol 54 (12) ◽  
pp. 607-609 ◽  
Author(s):  
R. G. Rowberry ◽  
G. H. Collin
Keyword(s):  
Humic Acid ◽  
Yield And Quality

scholarly journals Effect of Humic Acid Application on the Yield and Quality of Flue-Cured Tobacco

2014 ◽  
Vol 6 (11) ◽  
Author(s):  
Yuting He ◽  
Changquan Wang ◽  
Bing Li ◽  
Wanqiu Wang ◽  
Bin Li ◽  
...  
Keyword(s):  
Humic Acid ◽  
Yield And Quality

scholarly journals Determination of the Effect of Humic Acid on Growth and Development Parameters of Parsley (Petroselinum sativum Hoffm.) Grown in Boron Soil

2018 ◽  
Vol 47 (1) ◽  
pp. 183-193 ◽  
Author(s):  
Tuncay TURSUN ◽  
Sener AKINCI ◽  
Esin BOZKURT
Keyword(s):  
Humic Acid ◽  
Growth Parameters ◽  
Dry Weight ◽  
High Yield ◽  
Yield And Quality ◽  
Icp Ms ◽  
Growth Analyses ◽  
Nutrient Solutions

Boron is an important micronutrient, required for all plant growth, and critical for high yield and quality of crops. The aim of the present research was to determine the effects of boron on pot-grown parsley (Petroselinum sativum Hoffm.). The experimental design consisted of four treatments using Hoagland-Arnon (1950) nutrient solutions with two different boron concentrations (B1 - 15 ppm and B2 - 150 ppm), each with and without 10 ml humic acid addition (HB1 and HB2), and controls with full strength Hoagland-Arnon solutions. Growth analyses of the parsley revealed that 15 ppm boron application caused an increase in root length leaf fresh and dry weight root fresh and dry weight and leaf area compared to control values. 150 ppm B (B2) concentration decreased all growth parameters compared to controls. The two humic acid treatments (HB1 and HB2) did not increase any of those growth parameters either in controls (C) or in the two boron (B1 and B2) concentrations. Analysis by (ICP-MS) revealed that B content in the leaves increased gradually in B1 and B2, as well as in both humic treatments where in HB2 it increased to 99.38% compared to B1. In the leaves, Mn, Zn and Fe contents behaved the same as B, increasing in all treatments, with the amounts in HB2 being significantly greater than in C, B1 and B2 leaves.

scholarly journals Physiological and biochemical responses of onion plants to deficit irrigation and humic acid application

2021 ◽  
Vol 6 (1) ◽  
pp. 728-737
Author(s):  
Zahra Amiri Forotaghe ◽  
Mohammad Kazem Souri ◽  
Marzieh Ghanbari Jahromi ◽  
Ali Mohammadi Torkashvand
Keyword(s):  
Humic Acid ◽  
Deficit Irrigation ◽  
Soluble Sugars ◽  
Growth Yield ◽  
Field Capacity ◽  
Leaf Protein ◽  
Vegetable Crops ◽  
Sod Activity ◽  
Yield And Quality

Abstract Onion is an important crop with significant roles in human diets. The growth, yield, and quality of vegetable crops, including onions, are more vulnerable to water stress than other crops. In this study, different levels of deficit irrigation (DI) as factor A (a1: 80%, a2: 70%, and a3: 60% of soil field capacity [FC]) and humic acid (HA) as factor B (b1: without and b2: with HA application) were evaluated on onion growth characteristics in a factorial design with four replications. The results showed that the interaction of DI and HA was significant on leaf protein, peroxidase (POD), superoxide dismutase (SOD), and on bulb protein and potassium (K) concentrations. The highest record of these traits was observed in a3b2 (highest DI with HA application), and their lowest was in those at first level of DI (a1). Leaf protein and, to a lesser extent, bulb protein were increased by DI and HA applications. DI at 60% but not at 70% FC significantly reduced bulb fresh weight. There was a gradual increase in leaf proline, soluble sugars, protein, catalase (CAT), POD, SOD activity, and bulb K by application of DI; however, most of bulb traits including protein, iron (Fe), zinc (Zn), and CAT and POD activity were increased only under highest DI level (a3: 60% FC). However, application of HA further increased the soluble sugars and protein concentration as well as the POD and SOD activities of leaves, and protein, Fe, K concentrations, and CAT activity of bulbs under DI. The results indicated that HA benefitted onion growth particularly under DI conditions.

scholarly journals Effect of biostimulants on leaf yield and quality of annual moringa (Moringa oleifera. Lam) Var. PKM - 1

2019 ◽  
Author(s):  
R. Balakumbahan ◽  
M. P. Kavitha
Keyword(s):  
Humic Acid ◽  
Foliar Application ◽  
Ground Level ◽  
Recommended Dose ◽  
Cost Ratio ◽  
Treatment Schedule ◽  
Leaf Production ◽  
Yield And Quality ◽  
Leaf Yield

Research study on effect of foliar application of biostimulants on yield and quality of annual moringa for leaf production was conducted at Horticultural College and Research Institute, Periyakulam between October 2014 to September 2016. Annual moringa Var PKM -1 seeds were sown @ 40 cm x 20 cm spacing. Foliar application of different concentrations of humic acid, Vermiwash and sea weed extract were given as per the treatment schedule. Harvesting of moringa leaves was done starting from 60 days after sowing leaving 45 cm stem from the ground level at every 45 days interval. Fresh and dry leaf yield per plot was recorded in each harvest and the data were analyzed statistically. Cost benefit ratio for each treatment was calculated. Among the different treatment combinations, application of humic acid 0.2% + vermiwash 4% + sea weed extract 4% @ 10 days after each harvest recorded the highest dry leaf yield of 18.24 t/ha followed by the application of humic acid 2 ml/lit + vermiwash 4% + sea weed extract 4% @ 10 and 25 days after each harvest along with recommended dose of fertilizer. The highest benefit cost ratio of 1:2.45 was observed in the treatment of foliar application of humic acid 2 ml/lit + vermiwash 4% + sea weed extract 4% @ 10 days after each harvest along with recommended dose of fertilizers.

scholarly journals Impact of Humic Acid on Yield and Quality of Sugar Beet (Beta vulgaris L.) Grown on Calcareous Soil

2015 ◽  
Vol 7 (3) ◽  
Author(s):  
Ghorbanali RASSAM ◽  
Alireza DADKHAH ◽  
Asghar KHOSHNOOD YAZDI ◽  
Maryam DASHTI
Keyword(s):  
Humic Acid ◽  
Sugar Beet ◽  
Beta Vulgaris ◽  
Calcareous Soil ◽  
Yield And Quality
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