scholarly journals Growth and Yield Response of Maize (Zea mays L.) on Acid Soil to Different Rates of Humic Acid and NPK Fertilizer

2019 ◽  
Vol 4 (2) ◽  
pp. 76
Author(s):  
Putri Wulandari ◽  
Endang Sulistyaningsih ◽  
Suci Handayani ◽  
Benito Heru Purwanto
Keyword(s):  
Humic Acid ◽  
Acid Soil ◽  
Dry Weight ◽  
Growth And Yield ◽  
Yield Response ◽  
P Availability ◽  
Soil P ◽  
Soil P Availability ◽  
Npk Fertilizer ◽  
Total Dry Weight

The main constraint in the extensification of maize on the dry land of acid soil is the low availability of P in soil. This study aimed to determine the effect and the optimal dose of humic acid on the growth and yield of maize on acid soil. This research was conducted from February to May 2017 at Tri Dharma Field Laboratory, Faculty of Agriculture, Gadjah Mada University. Acid soil with low P availability used was from sub-district Cigudeg and Jasinga, West Java. The research was arranged in Randomized Complete Block Design (RCBD) with 2 factors. The first factor was maize cultivar, namely Bisi 2 and Pioneer 35. The second factor was the rate of humic acid and NPK fertilizer, consisting of 0 kg.ha-1 (without) NPK and 0% (without) humic acid, NPK + 0% (without) humic acid, NPK + 5% humic acid, NPK + 10% humic acid, and NPK + 15% humic acid. NPK fertilizer applied was NPK 16:16:16 at a dose of 350 kg.ha-1. The results showed that humic acid application on acid soil increased C-humic content in the soil, soil P availability, total dry weight of the plant, and kernel dry weight at harvest (15 weeks after planting). The increase in soil P availability did not improve the plant growth but increased the accumulation of plant biomass.  The application of humic acid at 15% (52.5 kg.ha-1) combined with NPK fertilizer on acid soil significantly increased total dry weight of plant and kernel dry weight up to 13.14% and 21.81%, respectively, thus, it is recommended for maize cultivation on acid soil. 

scholarly journals Growth and Yield of Soybean as a Response of the Fertilization of NPK Compound Produced with Spent and Deoiled Bleaching Earth Filler

2020 ◽  
Vol 36 (1) ◽  
pp. 11
Author(s):  
Radinal Arief Sinaga ◽  
Budiastuti Kurniasih ◽  
Eka Tarwaca Susila Putra
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Clay Mineral ◽  
Block Design ◽  
Bleaching Earth ◽  
Dry Weight ◽  
Growth And Yield ◽  
Npk Fertilizer ◽  
Total Dry Weight ◽  
Npk Fertilization

<span>Spent Bleaching Earth (SBE) is a by-product of the refining of Crude Palm Oil (CPO) into cooking oil which is classified as hazardous and toxic materials waste. SBE has the potential to be used as a filler in the production of NPK fertilizer. This study aims to compare the effect of SBE and Deoiled Bleaching Earth (DBE) as the replacement of clay mineral, which is expected to have the same effect as the control treatment in terms of the leaf area, total dry weight, plant height and yield of plant. </span><span lang="EN-US">This experiment used a one-factor Randomized Complete Block Design (RCBD) with three replicates. The treatments of filler in NPK fertilizer were 10% clay minerals, NPK with 5% clay mineral + 5% SBE filler and NPK with 5% clay mineral + 5% DBE filler. Fertilizer was given twice, ie when the plant was 14 days after planting (DAP) as much as 2 g polybag<sup>-1</sup> and age 35 DAP as much as 3 g polybag<sup>-1</sup> at each treatment. The results showed that the application of NPK fertilization with 5% clay mineral + 5% SBE filler and NPK fertilization with 5% clay mineral + 5% DBE filler had the same effect as NPK fertilization with 10% clay mineral filler on leaf area, total dry weight, plant height and yield of plant. SBE and DBE can be used as substituties for clay mineral in NPK fertilizer production.</span>

Phosphorus and potassium nutrition of cotton: interaction with sodium

2010 ◽  
Vol 61 (10) ◽  
pp. 825 ◽  
Author(s):  
Ian J. Rochester
Keyword(s):  
Field Experiments ◽  
Growth And Yield ◽  
Yield Response ◽  
Cotton Leaf ◽  
P Availability ◽  
K Uptake ◽  
Sodic Soils ◽  
Soil Sodicity ◽  
Soil P ◽  
Na Uptake

Poor phosphorus (P) and potassium (K) nutrition limits the growth and yield of many cotton (Gossypium hirsutum L.) crops in Australia. The demand for nutrients from cotton crops has risen as yields have increased over the past 40 years, and some soils have become depleted in these nutrients. Cotton is commonly grown on sodic soils that are more prone to nutritional problems. A survey of thirty-one sites over four years in northern NSW, Australia included twelve sites that had sodic topsoil. However, available soil P and K at all sites were above established critical values for cotton crops. Soil sodicity was negatively correlated with available soil P and K, and positively with soil salinity and chloride. Cotton leaf P and K concentrations at flowering were negatively correlated with leaf sodium (Na) concentration. The cotton crops growing in sodic soils produced 20% less dry matter (3 weeks before crop defoliation) and crop P and K uptake was reduced by 23% and 25%, respectively, whereas Na uptake was 107% higher. High soil sodicity also reduced the uptake of micro-nutrients. Two field experiments in adjacent sodic and non-sodic areas on one farm showed a yield response to P fertiliser application at the non-sodic site only, but where soil P availability was above the accepted critical value. Application of K fertiliser did not increase crop K uptake or yield. The lower yield and poorer growth of irrigated cotton on sodic soils was related to higher Na uptake and lower P and K uptake, possibly due to restricted root growth in sodic soils.

scholarly journals Adsorption and availability of phosphorus in response to humic acid rates in soils limed with CaCO3 or MgCO3

2018 ◽  
Vol 42 (1) ◽  
pp. 7-20 ◽  
Author(s):  
Henrique José Guimarães Moreira Maluf ◽  
Carlos Alberto Silva ◽  
Nilton Curi ◽  
Lloyd Darrell Norton ◽  
Sara Dantas Rosa
Keyword(s):  
Humic Acid ◽  
Buffering Capacity ◽  
Soil Samples ◽  
Maximum Adsorption Capacity ◽  
P Availability ◽  
P Adsorption ◽  
Soil P ◽  
Soil P Availability ◽  
The Right ◽  
Soil Colloids

ABSTRACT Humic acid (HA) may reduce adsorption and increase soil P availability, however, the magnitude of this effect is different when Ca2+ prevails over Mg2+ in limed soils. The objective of this study was to evaluate the effects of HA rates and carbonate sources on the adsorption, phosphate maximum buffering capacity (PMBC), and P availability in two contrasting soils. Oxisol and Entisol samples were firstly incubated with the following HA rates: 0, 20, 50, 100, 200 and 400 mg kg-1, combined with CaCO3 or MgCO3, to evaluate P adsorption. In sequence, soil samples were newly incubated with P (400 mg kg-1) to evaluate P availability. The least P adsorption was found when 296 mg kg-1 of HA was added to Oxisol. Applying HA rates decreased maximum adsorption capacity, increased P binding energy to soil colloids and did not alter PMBC of Entisol. Available P contents in Oxisol increased with HA rates, but it did not change in Entisol. Choosing the right HA rate can decrease PMBC up to 40% and increase the Oxisol P availability by 17%. Application of MgCO3 instead of CaCO3 decreased P adsorption in both soils. Thus, a positive correlation between Ca2+ content and PMBC was verified. Optimum rate of HA and the preponderance of Mg2+ instead of Ca2+ in soil volume fertilized with P are effective practices to reduce adsorption and increase P availability, especially in clayey Oxisol.

scholarly journals ANALISIS PERTUMBUHAN, ASIMILASI BERSIH DAN PRODUKSI TERUNG (Solanum melongena L.): DOSIS PUPUK KANDANG KAMBING DAN PUPUK NPK

2020 ◽  
Vol 8 (2) ◽  
pp. 295
Author(s):  
Tengku Boumedine Hamid Zulkifli ◽  
Koko Tampubolon ◽  
Ahmad Nadhira ◽  
Yunida Berliana ◽  
Erfan Wahyudi ◽  
...  
Keyword(s):  
Leaf Area ◽  
Solanum Melongena ◽  
Dry Weight ◽  
Growth And Yield ◽  
Fresh Weight ◽  
Shoot Dry Weight ◽  
Npk Fertilizer ◽  
Net Assimilation ◽  
Total Dry Weight ◽  
Goat Manure

Growth, Net Assimilation and Yield Analysis of Eggplant(Solanum melongena L.): Dosage of Goat Manure and NPK FertilizerThe research was aimed to obtain the dose of goat manure, NPK fertilizer and the interaction in increasing the growth and yield of eggplant. The research was usedthe randomized block design factorial with the first factor (goat manure) such as K0= 0 ton.ha-1, K1= 10 ton.ha-1, K2= 20 ton.ha-1 and the second factor (NPK Mutiara 16-16-16) such as P0= 0 ton.ha-1, P1= 100 ton.ha-1, P2= 200 ton.ha-1, P3= 300 ton.ha-1 with three replications. This research was conducted at Jl. Eka Rasmi, Medan Johor Subdistrict, Medan, North Sumatra from August until October 2019. The parameters such as plant height, leaf area, fresh weight of root and shoot, dry weight of root and shoot, total dry weight, fruitweight.plant-1, fruit weight.plot-1, crop growth rate (CGR), relative growth rate (RGR), and net assimilation rate (NAR) wereanalyzed using the ANOVA and the means were followed by DMRT test at the level of 5% used the IBM SPSS Statistics v.20. The results showed an increase in leaf area, fresh weight of shoot, dry weight of root, dry weight of shoot, total dry weight, and fruit weight.plant-1, of eggplant plant with the increasing dose of goat manure up to 20 ton.ha-1of 23.27%; 35.85%; 17.64%; 16.55%; 16.66%; and 17.18%, respectively compared to untreated except plant height. Growth in leaf area, fresh weight of shoot, dry weight of root, dry weight of shoot, total dry weight, fruit weight.plant-1 and fruit weight.plot-1of eggplant plant were increased with increasing NPK fertilizer dosage up to 300 kg.ha-1of 16.88%; 25.96%; 24.08%; 38.37%; 34.46%; 21.85%; and 19.22%, respectively compared to untreated. The interaction of goat manure with NPK does not significantly affect on the growth and yield of eggplant plant. The CGR, RGR, and NARvalue in the giving of goat manure from 10 until 30 days after planting was higher compared to the application of Mutiara NPK fertilizer.

THE EFFECT OF SALINITY OF IRRIGATION WATER AND SPRAYING BY HUMIC ACID IN SOME OF MORPHOLOGICAL, PHYSIOLOGICAL PROPERTIES, GROWTH AND YIELD OF WHEAT (Triticum aestivum L.)

2020 ◽  
pp. 1-12
Author(s):  
E. K. Al-Fahdawe ◽  
A. A. Al-Sumaidaie ◽  
Y. K. Al-Hadithy
Keyword(s):  
Humic Acid ◽  
Plant Height ◽  
Irrigation Water ◽  
Saline Water ◽  
Block Design ◽  
Nitrogen Concentration ◽  
Dry Weight ◽  
Growth And Yield ◽  
Biological Yield ◽  
Phosphorus And Potassium

A pots experiment was conducted at the Department of Biology/College of Education for Girls/University of Anbar during Autumn season of 2018-2019 to study the effect of the salinity irrigation water and spray by humic acid in some of morphological, physiological, growth and yield traits of wheat cv. IPa. The experiment was randomized complete block design (RCBD) with three replications. The first factor was assigned for irrigation by saline water at four level (S0, S1, S2 and S3), while the second factor was the foliar spraying of humic acid in three level (0.0, 1.0 and 1.5 g l-1). The results showed that there was significant reduction in plant height, vegetative dry weight, biological yield and chlorophyll leaves content when the plants were irrigated by saline water approached to 41.09 cm, 0.747 g, 0.849 g plant-1 and 38.67 SPAD, respectively at salinity level of 8.3 ds m-1 compared with the plants which irrigated by fresh water. The total carbohydrates were significantly decreased at the treatment of 8.3 ds m-1 reached 18.71 mg g-1. Spray levels humic acid achieved a significant increase in plant height, dry weight of the vegetative part, biological yield and chlorophyll leaves content sprayed at 1.0 and 1.5 g l-1 compared to no sprayed. Nitrogen concentration was significantly increased, while both phosphorus and potassium were decreased in the vegetative parts of wheat as the salinity of irrigation water increased. However, the increase of humic acid levels led to significant increasing in nitrogen, phosphorus and potassium concentration.

Decreases in soil P availability are associated with soil organic P declines following forest conversion in subtropical China

CATENA ◽  
2021 ◽  
Vol 205 ◽  
pp. 105459
Author(s):  
Liuming Yang ◽  
Zhijie Yang ◽  
Xiaojian Zhong ◽  
Chao Xu ◽  
Yanyu Lin ◽  
...  
Keyword(s):  
Forest Conversion ◽  
P Availability ◽  
Organic P ◽  
Subtropical China ◽  
Soil P ◽  
Soil P Availability

The use of biologically based phosphorus fractions to evaluate soil P availability in reduced P-input paddy soils

2018 ◽  
Vol 34 (3) ◽  
pp. 326-334 ◽  
Author(s):  
J. Yuan ◽  
L. Wang ◽  
S. Wang ◽  
Y. Wang ◽  
H. Wang ◽  
...  
Keyword(s):  
Phosphorus Fractions ◽  
Paddy Soils ◽  
P Availability ◽  
Soil P ◽  
Soil P Availability

scholarly journals Pengaruh Sumber dan Dosis Bahan Organik terhadap Perubahan sifat Kimia Tanah, Pertumbuhan dan Hasil Tanaman Sorgum (Sorghum bicolor L.Moench) var. KD4 di Lahan Kering Jatikerto, Malang

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Nur Edy Suminarti ◽  
A.Y. Edy Guntoro ◽  
A. N. Fajrin
Keyword(s):  
Organic Matter ◽  
Sorghum Bicolor ◽  
Leaf Area ◽  
Chemical Properties ◽  
Dry Weight ◽  
Soil Chemical Properties ◽  
Growth And Yield ◽  
Cow Dung ◽  
Dry Land ◽  
Total Dry Weight

Suminarti et al, 2018. Effect of Source and Dosage of Organic Materials on Changes in Soil Chemical Properties, Growth and Yield of Sorghum Plants (Sorghum bicolor L.Moench) var. KD4 in Dry Land Jatikerto, Malang. JLSO 7(2): Agricultural extensification is the right step to anticipate conditions of food insecurity. This refers to two reasons, namely (1) proliferation of land conversion activities, and (2) sorghum is a carbohydrate-producing plant that is quite tolerant when planted on dry land. The objective of this study was to obtain information about the sources and doses of organic matter that are appropriate to changes in soil chemical properties, growth and yield of sorghum plants, and has been carried out in the dry land of Jatikerto, Malang. A split plot designs with three replications were used in this study, sources of organic material (blothong, UB compost and cow dung) as the main plot, and doses of organic matter (125%, 100% and 75%) as a subplot. Soil analysis was carried out 3 times, i.e. before planting, after application of organic matter and at harvest. The agronomic observations were carried out destructively at 80 days after planting (DAP) including the components of growth (root dry weight, leaf area, and total dry weight of the plant) and harvest at the age of 90 DAP.F test at 5% level was used to test the effect of treatment, while the difference between treatments was based on LSD level of 5%.The results showed that there was a significant interaction between the source and dosage of organic matter on the leaf area and total dry weight, the highest yield was obtained in blothong at various doses. Higher yields of seeds per hectare were also found in blotong: 1.76 tons ha-1, and 1.73 tons ha-1 on 125% doses of organic matter. Blotong application is able to provide elements of N, P and K soil respectively 18.3%, 85.68% and 8.42% for plant.

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