Yield maximization in okra through nutrient interventions in typic ustipsamments of Kerala, India

Mini, V.; Mathew, Usha

doi:10.15740/has/ijps/14.1/10-13

Cited by 3 publications

(3 citation statements)

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“…In acidic conditions, phosphorus combines with iron and aluminum to form compounds that are not readily available to plants. Similar outcomes were discovered by Thomas et al [21].…”

Section: Available Phosphorus (Kg Ha -1 )supporting

confidence: 89%

Assessment of Physico-chemical Properties of Soil from Various Regions of Different Taluk of Pathanamthitta District in the State of Kerala, India

Krishnan,

Swaroop,

Thomas

et al. 2024

Int. J. Plant Soil Sci.

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The assessment of Physico-Chemical Properties of Soil from Various Regions of Different Taluk of Pathanamthitta District of Kerala in 2023-24 was a valuable endeavour. A total of 27 samples were collected at profile depths of 0-15, 15-30, and 30-45. It is interesting to note the variations in soil colour between dry and wet conditions, ranging from light brown to dark reddish brown.The soil textural class was identified as Sandy clay Loam, and the sand, silt and clay percentage varied from 45.18% to 50.64%, 17.21% to 20.70%, 30.91% to 34.61%. Bulk Density was varied from 1.08 Mg m-3 to 1.28 Mg m-3. The Particle Density varied from 2.02 Mg m-3 to 2.55 Mg m-3. The Pore Space (%) ranged from 40.18% to 50.62%. The Water Retaining Capacity (%) ranged from 39.19 to 48.98%. The pH value ranged from 4.9 to 6.9. The Electrical Conductivity ranged from 0.03 to 0.30 dS m-1. The value of total Organic Carbon (%) varied from 0.16 to 1.68 %. The available Nitrogen content of soil ranged from 119.45 to 286.07 kg ha-1. The available Phosphorus content of soil ranged from 13.23 to 64.20 kg ha-1. Available Potassium content of soil ranged from 100.80 to 382.40 kg ha-1. Exchangeable Calcium content of soil ranged from 1.7(meq 100g-1) to 9.1(meq 100g-1). Exchangeable Magnesium content of soil ranged from 0.23 (meq 100g-1) to 0.74(meq 100g-1). The Sulphur content of soil ranged from 0.03 to 0.44 kg ha-1. The findings revealed minor increases in bulk and particle density with depth, yet the overall physical condition of the soil seems favourable for plant growth. It is evident that the soils are slightly acidic but meet the acceptable EC limit. The high levels of Organic Carbon are promising, while Nitrogen is lower and Phosphorus and Potassium levels are moderate to high. However, secondary nutrients like Calcium, Magnesium, and Sulphur are relatively low. Nutrient levels appear to be influenced by soil depth, with leaching due to higher precipitation levels in the area contributing to nutrient deficiencies. The results suggest that improvements can be made by implementing strategies such as cover crops, green manure, legume cultivation, mulching, and specific cropping systems to address leaching concerns.

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“…In acidic conditions, phosphorus combines with iron and aluminum to form compounds that are not readily available to plants. Similar outcomes were discovered by Thomas et al [21].…”

Section: Available Phosphorus (Kg Ha -1 )supporting

confidence: 89%

Assessment of Physico-chemical Properties of Soil from Various Regions of Different Taluk of Pathanamthitta District in the State of Kerala, India

Krishnan,

Swaroop,

Thomas

et al. 2024

Int. J. Plant Soil Sci.

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“…Effect of foliar nutrition of macro and micro nutrients on post-harvest N, P, K, Zn and B status of soil.Foliar Nutrition with Water Soluble Macro and Micro Nutrient Fertilizers for Yield Maximization in Bush Vegetable Cowpea comparable with T 5 , T 6 , T 7 , T 10 , T 11 and T 12 . Similar results of increased availability of Zn and B in the soil was reported byMini and Mathew (2019) following the foliar application of micro nutrient mixture in okra. Application of 0.25 per cent borax at flowering and fruit initiation stages of tomato recorded the highest soil available boron…”

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confidence: 86%

Foliar Nutrition with Water Soluble Macro and Micro Nutrient Fertilizers for Yield Maximization in Bush Vegetable Cowpea

Krishnasree

Raj

Pillai

et al. 2021

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Background: Cowpea is a leguminous crop of indeterminate growth habit and continues to produce flowers throughout its life cycle. In order to realize the genetic yield potential of cowpea, nutrient requirements of later formed flushes also needs to be met. Hence the present study was formulated to assess the effect of foliar application of water-soluble macro nutrient fertilizers viz., NPK 19:19:19 and potassium nitrate and micronutrient fertilizers viz. zinc sulphate and solubor for yield maximization in bush vegetable cowpea. Methods: The field experiment was conducted at Coconut Research Station, Balaramapuram, during Rabi 2020-21. The experiment was laid out in randomized block design with 13 treatments in three replications. The treatments comprised of recommended dose of conventional fertilizers (RDF) NPK 20:30:10 kg ha-1 as control and RDF + foliar application of water-soluble fertilizers 19:19:19 (0.5%) and potassium nitrate (0.5%) with zinc sulphate (0.05%) and solubor (0.025%) in twelve different combinations. Result: Results revealed that compared to RDF alone, RDF + foliar application of water-soluble macro and micro nutrient fertilizers at 45 DAS significantly improved the dry matter production, number of pods per plant and pod weight and recorded a yield enhancement of 22 to 55 per cent. Among the treatments, RDF + foliar application of 19:19:19 (0.5%) and solubor (0.025%) at 45 DAS recorded the highest dry matter production per plant (39.51 g), pods per plant (30.88 no.), pod yield (7410 kg ha-1), net return (82651 Rs ha-1) and B:C ratio (2.26). The treatments, RDF + foliar application of 19:19:19 (0.5%) at 45 DAS; RDF + foliar application of 19:19:19 (0.5%), zinc sulphate (0.05%) and solubor (0.025%) at 45 DAS; and RDF + foliar application of potassium nitrate (0.5%) and solubor (0.025%) at 45 DAS also recorded comparable number of pods per plant, green pod yield, net return and B:C ratio. Considering the highest green pod yield, net return and B:C ratio, RDF + foliar application of NPK 19:19:19 (0.5%) and solubor (0.025%) at 45 DAS could be recommended for yield maximization in bush type vegetable cowpea.

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“…Mini and Mathew (2019) [39] developed a multi nutrient mixture to address the wide spread deficiencies of Ca, Mg, B and Zn in Onattukara region. The multi nutrient mixture is having a nutrient composition of Zn (9.5%) + B (2.6%) +Cu (1.2%) +Mg (2.4%) +N (0.46%).…”

Section: Foliar Feeding In Vegetables 1 Okramentioning

confidence: 99%

Foliar nutrition in vegetables: A review

Krishnasree¹,

Raj²,

Chacko³

2021

J Pharmacogn Phytochem

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Vegetables being a rich source of vitamins, minerals and non-nutritive phytochemicals play a vital role in our diet. According to World Health Organization, lower intake of vegetables is one of the main risk factors for mortality. To make a healthy diet affordable to all, the gap between actual and potential yield of vegetables should be reduced. Foliar application of water soluble fertilizers can boost production in vegetables thus attaining the goal of food security. Foliar applied nutrients absorbed through stomata and cuticle. For better results, foliar application of nutrients at proper growth stage of crop is important. It is not an alternative to soil application, but supplement soil application especially when secondary and micro nutrient deficiencies arise. In spite of a few limitations foliar nutrition serves as an efficient means of nutrient management in vegetables. To combat the wide spread deficiencies of nutrients especially arising at the critical stages of crop growth foliar nutrition can be successfully adopted.

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Yield maximization in okra through nutrient interventions in typic ustipsamments of Kerala, India

Cited by 3 publications

References 0 publications

Assessment of Physico-chemical Properties of Soil from Various Regions of Different Taluk of Pathanamthitta District in the State of Kerala, India

Assessment of Physico-chemical Properties of Soil from Various Regions of Different Taluk of Pathanamthitta District in the State of Kerala, India

Foliar Nutrition with Water Soluble Macro and Micro Nutrient Fertilizers for Yield Maximization in Bush Vegetable Cowpea

Foliar nutrition in vegetables: A review

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