The Effects of N, P, K Fertilizers on Fruit Yield and Quality of Satsuma Mandarines (Citrus Unshiu Marc.)

Köseoğlu, A. Turgut; Eryuce, N.; Çolakoğlu, Habil

doi:10.17660/actahortic.1995.379.8

Cited by 6 publications

(2 citation statements)

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“…For different commercial citrus cultivars, the moderate amount of macronutrients is required to control greening disease. So, for mandarin recommended amount is 475 g N, 320 g P2O5, 355 g K2O per tree every year (Koseoglu et al, 1995). For the supplement of micronutrients copper sulphate, Iron sulphate and Zinc sulphate need to be carried out through soil application at 50g per tree or foliar application of 0.5% concentration (Shrivastav and Singh, 2009).…”

Section: Nutrition Managementmentioning

confidence: 99%

Citrus Greening: A Major Threat to Citrus Growers in Nepal

Pandey,

Shrestha

2023

Trop.agr.bio.

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Citrus is a high-value horticultural crop belonging to the family Rutaceae, contributing 27.27% of the total fruit area in Nepal. In recent years, citrus decline has been a multifaceted issue for most of the citrus growers, with abated production and productivity. Among the various causes of citrus decline, citrus greening is considered the most devastating, rapidly expanding, and highly incurable disease, which has wreaked havoc on the citrus industry across the globe. Citrus psylla is the major insect vector to spread this malady worldwide. There are still no proper strategies to cope with the impact of citrus greening. However, integrated pest management strategies could be adopted in Nepal like the use of tolerant rootstocks, a proper quarantine system, guava intercropping, nutrient management, the use of yellow sticky traps, and vector control methods to reduce the greening infestation in citrus trees. This study aims to review all the relevant information regarding citrus greening, including its causes, symptoms, diagnosis, and management practices that are pivotal for citrus growers.

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Section: Nutrition Managementmentioning

confidence: 99%

Citrus Greening: A Major Threat to Citrus Growers in Nepal

Pandey,

Shrestha

2023

Trop.agr.bio.

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“…Potassium fertilizer (K) helps the formation and convertion of energy and sugar that the crops need for their development through photosynthesis process [1], which plays a crucial role in improving the quality and yield of crops [2]. Many countries have been actively promoting and applying balanced fertilizer application with the appropriate amounts and proportions of K [3]; balanced crop nutrient management is a key factor for improving crop productivity [4]. Heilongjiang province is a cold and semiarid region in China; imbalanced use of chemical fertilizers is one of the major reasons of low maize productivity under semiarid condition [5]; K application under semiarid climates condition not only improves crop tolerance to drought stress [6] but also improves crop growth and dry matter partitioning and increases yields significantly [7].…”

Section: Introductionmentioning

confidence: 99%

Gradual Application of Potassium Fertilizer Elevated the Sugar Conversion Mechanism and Yield of Waxy and Sweet Fresh-Eaten Maize in the Semiarid Cold Region

Yang

Wang

et al. 2021

Journal of Food Quality

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Fresh-eaten maize (Zea mays L.) is favored by consumers for its unique flavor, good health, and medical effects. Heilongjiang province is a semiarid cold region with the annual output of 3.35 billion ears, and the demand for fresh eaten maize is increasing in the region. Therefore, improving its yield and quality is urgently needed in this area. In this study, two of thirty varieties (waxy maize Jin-262 and sweet maize Jingke-183) were used and five proportions of potassium (K2O, 120 kg/ha) were applied at sowing, jointing, and large trumpet stages to identify the high yield and quality of fresh-eaten maize under a semiarid cold ecological condition in Daqing, Heilongjiang province, China, during 2017-2018. The results from the screening of eighteen maize varieties showed that waxy maize Jin-262 and sweet maize Jingke-183 had higher starch content and soluble sucrose contents than those of other varieties. While the potassium proportions application during the sowing (20%), jointing (40%), and large trumpet stages (40%) had further significantly increased the starch content, soluble sugar content, sucrose content, and sucrose metabolic enzymes activities of Jin-262 and Jingke-183, however, the yields of Jin-262 and Jingke-183 had increased by applying potassium fertilizer during the sowing stages (50%) and jointing stages (50%). Considering the overall higher maize quality, we recommended the waxy maize Jin-262 and sweet maize Jingke-183 varieties along with application of 20% (sowing), 40% (jointing), and 40% (large trumpet stages) of 120 kg/ha potassium fertilizer for the improvement of grain quality of maize planting in the semiarid cold region. Otherwise, reasonable gradual potassium fertilization might be a wiser option.

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