scholarly journals Effects of Combined Potassium and Organic Fertilizer Application on Newhall Navel Orange Nutrient Uptake, Yield, and Quality

Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1990
Author(s):  
Mingxia Wen ◽  
Ji Zhang ◽  
Yongqiang Zheng ◽  
Shilai Yi

In this study, we investigated the effects of the combined application of different doses of potassium and organic fertilizers on the nutrient uptake, yield, and quality of Newhall navel oranges (Citrus sinensis Osb. cv.). The citrus trees were treated with potassium fertilizer alone or with one of three combinations of organic and potassium fertilizers. Spring shoots, autumn shoots, and fruit were collected when they reached maturity, and the relevant indexes were determined by conventional methods. The soil carbon flux was measured 15, 35, 65, and 95 days after fertilizer application by a soil gas flux measuring instrument. The results showed that the dry weights of leaves and twigs of the spring shoots were 43.1% and 99.8% higher in the OM15+K05-treated (15 kg organic manure and 1.05 kg potassium sulfate per plant) than in the OM0+K25-treated (1.25 kg potassium sulfate per plant) plants, respectively. Combined potassium and organic fertilizer application helped the shoots and fruits to absorb more mineral nutrients. As a result, the fruit yield increased, fruit surface color improved, and skin thickness became thinner. The internal quality of the fruit was also improved by the combination of different potassium fertilizers and organic fertilizers. The fruit quality was optimal for the OM10+K15-treated plants. The recommended doses of organic and potassium sulfate fertilizers for Newhall navel orange orchards with purple paddy soil in southwestern China are 5–10 kg/plant and 1.15–1.20 kg/plant, respectively.

2021 ◽  
pp. 55-66
Author(s):  
Mulyati Mulyati ◽  
Baharuddin AB ◽  
R Sri Tejo Wulan

The use of inorganic fertilizers has an important role in increasing plant growth and production. But it also causes various problems such as decreasing soil organic matter, soil acidity, soil degradation, nutrient imbalance and increasing environmental pollution. Therefore, it needs to be balanced with the provision of organic fertilizers. A field experiment was conducted to study the effect of application of various doses of inorganic and organic fertilizers on N, P, K nutrient uptake and maize plant growth. The experimental design used was a randomized block design arranged in a factorial manner consisting of two factors. The first factor is the dose of inorganic fertilizer (A): 0, 150 and 300 kg ha-1 phonska and the second factor is organic fertilizer plus (P): 0, 10, 20 tons ha-1. The two factors were combined and each treatment combination was repeated three times. The data obtained were analyzed by analysis of variance at the 5% level of significance. The results showed that there was no interaction between the application of inorganic and organic fertilizers on the growth and nutrient uptake of N, P and K. However, the application of inorganic and organic fertilizers had a significant effect on all tested agronomic traits except for plant height. Nutrient uptake of N, P and K also increased significantly due to the application of inorganic and organic fertilizers. The balance of inorganic and organic fertilizer application increases the availability of nutrients as well as the uptake of N, P, and K nutrients by maize plants.


2018 ◽  
Author(s):  
MARIANNE REYNELDA MAMONDOL

This research aims to find out the effect and functional relationship of coconut ash organic fertilizer application on the increasing yield and quality of waxy corn. There are seven treatments of coconut ash fertilizer dosage, i.e. 0.00 ton/ha, 0.75 ton/ha, 1.50 ton/ha, 2.25 ton/ha, 3.00 ton/ha, 3.75 ton/ha, and 4.50 ton/ha. Data is analyzed using one way anova, t test for 2 independent samples, and simple linear regression analysis. Fertilizer dosage has significant effect on ear height position from soil surface, the number of seed row on ear, ear weight with and without dried husk, waxy corn production with and without dried husk, and starch, amilose, and amilopectin contents. The highest average of ear height position and the amount of seed row is obtained at dosage 0.75 ton/ha. Dosage 2.25 ton/ha gives highest average for ear weight with and without dried husk, while dosage 3.75 ton/ha results highest average for variables of waxy corn production with and without dried husk. Dosage 3.75 ton/ha also gives highest average for starch and amilopectin contents and lowest average for amilose content. One way relationship happens between fertilizer dosage with ear height position, the amount of seed row, ear weight, waxy corn production, starch and amilopectin contents.


2018 ◽  
Author(s):  
MARIANNE REYNELDA MAMONDOL

This research aims to find out the effect and functional relationship of coconut ash organic fertilizer application on the increasing yield and quality of waxy corn. There are seven treatments of coconut ash fertilizer dosage, i.e. 0.00 ton/ha, 0.75 ton/ha, 1.50 ton/ha, 2.25 ton/ha, 3.00 ton/ha, 3.75 ton/ha, and 4.50 ton/ha. Data is analyzed using one way anova, t test for 2 independent samples, and simple linear regression analysis. Fertilizer dosage has significant effect on ear height position from soil surface, the number of seed row on ear, ear weight with and without dried husk, waxy corn production with and without dried husk, and starch, amilose, and amilopectin contents. The highest average of ear height position and the amount of seed row is obtained at dosage 0.75 ton/ha. Dosage 2.25 ton/ha gives highest average for ear weight with and without dried husk, while dosage 3.75 ton/ha results highest average for variables of waxy corn production with and without dried husk. Dosage 3.75 ton/ha also gives highest average for starch and amilopectin contents and lowest average for amilose content. One way relationship happens between fertilizer dosage with ear height position, the amount of seed row, ear weight, waxy corn production, starch and amilopectin contents.


2009 ◽  
Vol 2009 (108) ◽  
pp. 108_51-108_59
Author(s):  
Nobuyuki Miura ◽  
Koji Uchimura ◽  
Takahisa Nakamura ◽  
Mitsuaki Karasuyama ◽  
Noriharu Ae

2020 ◽  
Vol 210 ◽  
pp. 05003
Author(s):  
Alexander Verzilin ◽  
Yulia Fedulova ◽  
Michael Pimkin

The effect of new biologically pure organic fertilizers, Dia Guma and Gumi Turf, on the yield and quality of grape seedlings on nutrient-poor soils has been studied. The positive effect of silicon - organic fertilizer Dia Gum in combination with the growth stimulator Zircon on the survival rate of shanks, the formation of the aboveground part and the root system of plants is shown (the survival rate of shanks in relation to the control (pure water) increases almost 2 times from 36 to 70%, the diameter of growth - from 4.3 to 7 mm, total growth - from 32 to 54 cm, the volume of the root system - from 15 to 25 cm3). The use of peat - sapropel concentrate Gumi Peat in combination with the growth stimulator Zircon, according to the results of the yield and quality of the planting material, is close to the use of Dia Guma + Zircon. These fertilizers allow to a greater extent to biologize the process of growing planting material in the nursery.


2018 ◽  
Author(s):  
MARIANNE REYNELDA MAMONDOL

This research aims to find out the effect and functional relationship of coconut ash organic fertilizer application on the increasing yield and quality of waxy corn. There are seven treatments of coconut ash fertilizer dosage, i.e. 0.00 ton/ha, 0.75 ton/ha, 1.50 ton/ha, 2.25 ton/ha, 3.00 ton/ha, 3.75 ton/ha, and 4.50 ton/ha. Data is analyzed using one way anova, t test for 2 independent samples, and simple linear regression analysis. Fertilizer dosage has significant effect on ear height position from soil surface, the amount of seed row on ear, ear weight with and without leaves, waxy corn production with and without leaves, and starch, amilose, and amilopectin contents. The highest average of ear height position and the amount of seed row is obtained at dosage 0.75 ton/ha. Dosage 2.25 ton/ha gives highest average for ear weight with and without leaves, while dosage 3.75 ton/ha results highest average for variables of waxy corn production with and without leaves. Dosage 3.75 ton/ha also gives highest average for starch and amilopectin contents and lowest average for amilose content. One way relationship happens between fertilizer dosage with ear height position, the amount of seed row, ear weight, waxy corn production, starch and amilopectin contents.


2020 ◽  
Vol 30 (1) ◽  
pp. 21
Author(s):  
Irwan Muas ◽  
NFN Jumjunidang ◽  
NFN Hendri ◽  
Bambang Hariyanto ◽  
Liza Oktariana

<p>Pemupukan merupakan salah satu aspek penting untuk meningkatkan produktivitas dan kualitas buah naga. Penelitian bertujuan untuk mengetahui pengaruh pemberian pupuk organik terhadap pertumbuhan dan produksi buah naga. Penelitian dilaksanakan di kebun petani Nagari Aripan, Kabupaten Solok, Provinsi Sumatra Barat, dimulai sejak Januari sampai dengan Desember 2014. Penelitian disusun berdasarkan Rancangan Acak Kelompok Faktorial dengan dua faktor perlakuan dan tiga ulangan, setiap unit perlakuan terdiri atas tiga tiang. Faktor pertama adalah takaran pupuk organik dengan tiga level, yaitu 5, 10, dan 15 kg/tiang. Faktor kedua adalah interval waktu pemberian pupuk organik terdiri atas empat level, yaitu 1, 2, 3, dan 4 bulan. Hasil penelitian menunjukkan bahwa pemberian pupuk organik secara nyata dapat meningkatkan pertumbuhan (jumlah cabang), jumlah produksi dan kualitas buah (grade/ukuran buah, TSS). Pemberian pupuk organik juga dapat meningkatkan kandungan hara pada tanah dan tanaman. Aplikasi pupuk organik dengan takaran 15 kg dan interval 1 bulan berpengaruh nyata terhadap pertumbuhan (jumlah cabang), produksi, dan kualitas buah (grade/ukuran buah) tertinggi. Implikasi dari penelitian ini adalah dalam meningkatkan pertumbuhan dan produksi buah naga perlu dilakukan aplikasi pupuk organik.</p><p><strong>Keywords</strong></p><p>Pupuk organik; Pertumbuhan; Produksi; Buah naga</p><p><strong>Abstract</strong></p><p>Fertilization is one of important aspect in improving the productivity and quality of dragon fruit. This study aims to determine the effect of organic fertilizer on the growth and production of dragon fruit. The research was conducted from January to December 2014 at farmer orchard in Solok District, West Sumatra. The study was prepared based on a Factorial RCBD with two factors and three replicates, each treatment consisting of three pillars. First factor  was organic fertilizer dose with three levels (5, 10, and 15 kg/pillar).  Second factor was the interval application of organic fertilizer consisting of four levels (1, 2, 3, and 4 months). The results showed that the provision of organic fertilizer can significantly increase the growth (number of branches), amount of production and quality of fruit (grade/fruit size,TSS). Provision of organic fertilizers can also increase the nutrient content of soil and plants. Application of organic fertilizer with a dose of 15 kg and 1 month interval gives the highest growth (number of branches), the highest number of fruit production and quality (grade/fruit size) are significantly. Implication of this research is to increase the growth and production of dragon fruit that needs to be done organic fertilizer application.</p>


2021 ◽  
Vol 34 (1) ◽  
pp. 144-154
Author(s):  
THAYS LEMOS UCHOA ◽  
SEBASTIÃO ELVIRO DE ARAÚJO NETO ◽  
WAGNER DE MOURA FRANCISCO ◽  
LUÍS GUSTAVO DE SOUZA E SOUZA ◽  
NILCILÉIA MENDES DA SILVA

ABSTRACT The use of organic fertilizers can improve the chemical, physical, and biological properties of the soil, with their use implying low environmental impact. This study aimed to evaluate the yield and quality of yellow passion fruit grown in an organic system associated with irrigation and input levels. A randomized complete block design in a 3x2 factorial arrangement with four replications was adopted. The factors evaluated were: three input levels (fertilizers and alternative pesticides) and the presence or absence of irrigation. Fertilization consisted of the application of 5, 10, and 15 liters of organic compost per plant and 500, 1,000, and 1,500 g of lime per plant, corresponding to input levels 1, 2, and 3, respectively. Topdressing fertilization was split into two applications, corresponding to 118, 235, and 353 g per plant of thermophosphate and 59.1, 118.20, and 176.40 g per plant of potassium sulfate for levels 1, 2, and 3 of input application, respectively. The alternative pesticides were sprayed every 30, 15, and 7 days for levels 1, 2, and 3, respectively. The number of fruits per plant and the yield increased using the input level 3 associated with irrigation. In the absence of irrigation, input levels 2 and 3 increased the content of soluble solids. The titratable acidity, TSS/TTA ratio, and the fruits classified as extra did not differ significantly between treatments. Input levels 1 and 2 associated with the absence of irrigation increased the percentage of fruits classified as commercial.


2020 ◽  
Vol 15 (5) ◽  
pp. 711-719
Author(s):  
Muhammad Ansar ◽  
Bahrudin ◽  
Saiful Darman ◽  
Paiman

This study aims to improve the growth, yield, and quality of LP-VoS bulbs by applying bokashi fertilizer from goat manure and regulating the duration of water supply with a sprinkler irrigation system. This research is a field that arranged in split-plot design. The main plot is the duration of irrigation water supply, consisting of three levels, 0.5; 1,0; and 1.5 hours. The subplot is giving organic fertilizer bokashi goat manure, which consists of two kinds, namely: without bokashi fertilizer and the addition of bokashi fertilizer 15 t.ha-1. Each treatment was repeated three times so that in total, there were 18 experimental plot units. The results showed that the duration of irrigation 0.5 hours at intervals of 3 days, followed by the application of 15 t.ha-1 bokashi organic fertilizer could increase the bulb circle of 'Lembah Palu' varieties.The use of bokashi organic fertilizer 15 t.ha-1 could increase soil moisture so it can growth, yields, and quality of shallot bulb. The duration of irrigation with a sprinkler system for 0.5-1.0 hours at intervals of 3 days could result in the growth of total dry weight and total leaf area per plant as well as the number of tubers per clump, fresh weight of tubers per clump and yield of tubers per hectare higher than treatment of water for 1.5 hours at intervals of 3 days. Water supply regulations and the use of bokashi organic fertilizers can increase the growth, yield, and quality of LP-VoS bulbs on dryland. For the cultivation of‘Lembah Palu’ varieties of shallots in dry land, it is necessary to apply organic fertilizers to increase the soil water content for increased production and quality.


2021 ◽  
Author(s):  
Dao-Cheng Ma ◽  
Xiang Tian ◽  
Pinxiang Guo ◽  
Ling-hui Wang ◽  
Wei-Chao Teng

Abstract Erythropalum scandens Bl. is a kind of leafy vegetable which has high edible and medicinal value in Southern China. However, it has been treated as a kind of wild vegetable for a long time and there is still little researches on its yield and quality after fertilization. This study aimed to assess the effect of yield and quality of E. scandens after using two kinds of organic fertilizer: chicken manure and cow manure, which find out the responses of the edible part in E. scandens after using different dosage and proportion of chicken manure and cow manure and find out a best fertilization treatment. We investigated the yield and quality of the edible part in biennial E. scandens including average yield, titratable acid content, sugar acid ratio, crude protein content, ascorbic acid content, tea polyphenols content, nitrate content, general flavone content and macronutrient content (including total nitrogen, phosphorus and potassium) after using different dosage and proportion of chicken manure and cow manure, which to find out a best fertilization treatment via the yield, nutrient and taste. Compared with CK group, proper fertilization can increase the average yield of E. scandens and promote its growth and macronutrient accumulation at the same time. The content of all kinds of nutrients are higher than CK group after using organic fertilizers and they can be accumulated during the process of fertilization. The E. scandens seedlings had the highest yield and best quality under T6 treatment (0.8kg/plant chicken manure+1.2 kg/plant cow manure). However, nitrate can be accumulated in the edible part of E. scandens during the process of fertilization. Compared with CK group, organic fertilization can increase the yield and quality of E. scandens, but excessive fertilization can lead to a significant increase in nitrate levels in plants, even exceeding food safety standards. The nitrate level of E. scandens is a little bit high in this research and better solution is still needed to ensure the quality and food security of E. scandens in the near future.


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