scholarly journals Potassium requirements and effects of K fertilizer application on yield and quality of bananas in Guangxi, China

Tropics ◽  
2006 ◽  
Vol 15 (1) ◽  
pp. 115-120
Author(s):  
Hongwei TAN ◽  
Liuqiang ZHOU ◽  
Rulin XAIE ◽  
Meifu HUANG
Keyword(s):  
Fertilizer Application ◽  
Yield And Quality ◽  
K Fertilizer

scholarly journals Potassium and Water-Deficient Conditions Influence the Growth, Yield and Quality of Ratoon Sugarcane (Saccharum officinarum L.) in a Semi-Arid Agroecosystem

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2257
Author(s):  
Rajan Bhatt ◽  
Jagdish Singh ◽  
Alison M. Laing ◽  
Ram Swaroop Meena ◽  
Walaa F. Alsanie ◽  
...  
Keyword(s):  
Insect Pests ◽  
Growth Yield ◽  
Fertilizer Application ◽  
Quality Parameters ◽  
Cane Yield ◽  
Yield And Quality ◽  
Fertilizer Application Rate ◽  
Significant Difference ◽  
K Fertilizer ◽  
Ratoon Sugarcane

Groundwater and soil potassium deficiencies are present in northern India. Sugarcane is a vital crop in the Indian Punjab; it is grown on approximately 91,000 hectares with an average yield of 80 tonnes ha−1 and a sugar recovery rate of 9.59%. The role of potassium (K) fertilizer under both sufficient and deficient irrigation in ratoon sugarcane crops is not well documented. We conducted a split-plot ratoon cane experiment during 2020–2021 at the Gurdaspur Regional Research Station of Punjab Agricultural University, India, on K-deficient soils. Main treatments were fully irrigated (I1) and water stressed (I0) conditions, with sub-treatments reflecting K fertilizer application rates of 0 (M1), 67 (M2), 133 (M3), and 200 (M4) kg K ha−1. The ratoon sugarcane performance was assessed in terms of growth, productivity, sugar quality and incidence of key insect pests. At harvest, trends in the growth and yield parameters in I1 were improved over the I0 treatment, with cane height (+12.2%), diameter (+3.3%), number of internodes (+5.4%), biomass yield (+7.6%) and cane yield (+5.9%) all higher, although little significant difference was observed between treatments. Ratoon cane yield under irrigation was 57.1 tonnes ha−1; in water-stressed conditions, it was 54.7 tonnes ha−1. In terms of sugarcane quality parameters, measured 12 months after harvesting the initial seed crop, values of Brix (+3.6%), pol (+3.9%), commercial cane sugar percentage (+4.0%) and extractable sugar percentage (+2.8%) were all higher in the irrigated treatments than the water-stressed plot. Irrigated treatments also had a significantly lower incidence of two key insect pests: top borer (Scirpophaga excerptalis) was reduced by 18.5% and stalk borer (Chilo auricilius) by 21.7%. The M3 and M4 treatments resulted in the highest cane yield and lowest incidence of insect pests compared to other K-fertilizer treatments. Economic return on K-fertilizer application increased with increasing fertilizer dosage. Under the potassium-deficient water-stressed conditions of the region of north India, a fertilizer application rate of 133 kg K ha−1 is recommended to improve ratoon sugarcane growth, yield, and quality parameters and economic returns for sugarcane farmers.

scholarly journals Yield and Mineral Content of Hydroponically Grown Mini-Cucumber (Cucumis sativus L.) as Affected by Reduced Nutrient Concentration and Foliar Fertilizer Application

HortScience ◽  
2017 ◽  
Vol 52 (12) ◽  
pp. 1728-1733 ◽  
Author(s):  
Martin M. Maboko ◽  
Christian Phillipus Du Plooy ◽  
Silence Chiloane
Keyword(s):  
Nutrient Concentration ◽  
Mineral Content ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Production Costs ◽  
Nutrient Concentrations ◽  
Foliar Fertilizer ◽  
Yield And Quality ◽  
Hydroponically Grown

Nutrient application is one of the major inputs required for hydroponic production of cucumbers. Reduced nutrient solution concentration with supplementary foliar fertilizer application may maintain yield and quality of mini-cucumber, while decreasing the production costs. An experiment was conducted to determine the effect of foliar fertilizer in combination with reduced nutrient concentrations on the yield and quality of hydroponically grown mini-cucumber in a plastic tunnel. Mini-cucumber plants were grown in sawdust, fertigated with nutrient solutions containing 100% (control), 75%, 50%, or 25% of the recommended nutrient concentration (NC) and two foliar fertilizer applications (no foliar and foliar application). The highest fresh and dry weight of mini-cucumber plants were obtained with 75% and 100% NC and decreased with 50% to 25% NC application. The number of marketable fruit and marketable yield on mini-cucumbers increased with 75% to 100% NC, followed by 50% NC, as compared with 25% NC. Deformed fruit were significantly lower at 25% NC than at 50%, 75%, and 100% NC. Foliar fertilizer application did not have an effect on mini-cucumber yield, but reduced the yellowing of fruit. Fruit mineral content (P, Fe, and Mn) was significantly improved by 100% NC. Improvement in yield at 75% and 100% NC was as a result of improved plant height, leaf chlorophyll content, plant fresh and dry weight, and the increase in nutrient uptake of N, P, K, and Mn, which was evident in the analysis of cucumber leaves. The reduced NC of 75% can maintain yield and quality of mini-cucumbers, whereas the application of foliar fertilizer had a limited effect.

EFFECTS OF N AND K APPLICATIONS ON THE LEAF COMPOSITION, YIELD, AND FRUIT QUALITY OF BEARING MCFARLIN CRANBERRDZS

1976 ◽  
Vol 56 (1) ◽  
pp. 107-110 ◽  
Author(s):  
G. W. EATON ◽  
C. N. MEEHAN
Keyword(s):  
Mineral Composition ◽  
Fruit Quality ◽  
Fertilizer Application ◽  
Zn Content ◽  
K Fertilizer ◽  
Leaf Composition

The effects of N and K fertilizer applications on yield, leaf mineral composition and fruit quality were studied at four locations in commercial cranberry plantings in experiments of 3 yr duration. Nitrogen applications at all locations increased leaf K content in the 1st and 3rd yr and decreased leaf Zn content at one location in the 2nd yr. Potassium applications increased leaf K content in all 3 yr of the experiment and decreased leaf Mg in the 2nd and 3rd yr. A significant location × N × K interaction influenced leaf K composition in the 3rd yr. Yield and fruit quality variables depended upon location but did not respond significantly to fertilizer application.

scholarly journals Сomparative evaluation of the effect of the bacterial biopreparation phytop 8.67–8 and the bacterial-humic complex agrofit-humate-b (bcg “afg-b”) on the growth and development of kiwano varieties green dragon

2021 ◽  
pp. 67-76
Author(s):  
A. V. Pastukhova ◽  
I. Е. Lavrishchev ◽  
A. F. Petrov ◽  
V. Р. Tsvetkova ◽  
V. S. Maslenikova
Keyword(s):  
Chemical Composition ◽  
Growth And Development ◽  
Growing Season ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Yield And Quality ◽  
Novosibirsk Region ◽  
Positive Effect

The results of studying the influence of various biological and mineral fertilizers: Phytop 8.67, Agrofit-humate-B (BKG «AFG-B”) – on the growth and development of plants, as well as the yield and quality of kiwano fruits of the Green Dragon variety are presented. During the study, phenological and morphological observations, accounting and evaluation of the quality of the obtained fruits, analysis of the chemical composition of the fruits were carried out. The obtained data confirmed the positive effect of the use of biological preparations on the structure and quality of the resulting crop of kiwano, which will allow us to recommend this crop for cultivation in the territory of the Novosibirsk region, using experimentally proven methods and norms of fertilizer application during the growing season of plants.

scholarly journals The Increasing Yield and Quality of Waxy Corn (Zea mays ceratina L.) Through Coconut Ash Organic Fertlizer Applications

2018 ◽  
Author(s):  
MARIANNE REYNELDA MAMONDOL
Keyword(s):  
Organic Fertilizer ◽  
Linear Regression Analysis ◽  
Soil Surface ◽  
Fertilizer Application ◽  
Corn Production ◽  
Yield And Quality ◽  
Ear Height ◽  
Waxy Corn ◽  
Relationship Of

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.

scholarly journals Analysis of rhizosphere bacterial diversity of Angelica dahurica var. formosana based on different experimental sites and varieties (strains)

2021 ◽  
Author(s):  
Meiyan Jiang ◽  
Fei Yao ◽  
Yunshu Yang ◽  
Yang Zhou ◽  
Kai Hou ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Bacterial Diversity ◽  
Growth Promotion ◽  
Bacterial Community Composition ◽  
Illumina Miseq ◽  
Fertilizer Application ◽  
Angelica Dahurica ◽  
Soil Environment ◽  
Yield And Quality

Only with good producing areas and good germplasm can good medicinal materials be produced. In this study, in order to explore the effects of soil environment and germplasm on yield and quality of Angelica dahurica var. formosana from microorganism level, Illumina MiSeq was used to study the rhizosphere bacterial diversity of A. dahurica var. formosana based on different origin and varieties (strains). The results showed that the bacterial community of A. dahurica var. formosana was stable and conserved to a certain extent, and the bacteria of Proteobacteria and Firmicutes might play an important role in improving the yield and quality of A. dahurica var. formosana. Soil variables were the key factors affecting the rhizosphere bacterial community composition of A. dahurica var. formosana. These results are of great significance for further understanding the growth promotion mechanism of beneficial rhizosphere bacteria, reducing fertilizer application, expanding planting area, improving soil environment, and improving yield and quality.

scholarly journals The effect of non-targeted application of propiconazole on the yield and quality of malt barley

2012 ◽  
Vol 92 (2) ◽  
pp. 341-349 ◽  
Author(s):  
R. E. Karamanos ◽  
N. A. Flore ◽  
J. T. Harapiak ◽  
F. C. Stevenson
Keyword(s):  
N Fertilizer ◽  
Yield Potential ◽  
Fertilizer Treatment ◽  
Fertilizer Rate ◽  
Net Returns ◽  
Yield And Quality ◽  
K Fertilizer ◽  
Malt Barley ◽  
Fertilizer Rates

Karamanos, R. E., Flore, N. A., Harapiak, J. T. and Stevenson, F. C. 2012. The effect of non-targeted application of propiconazole on the yield and quality of malt barley. Can. J. Plant Sci. 92: 341–349. There is a desire to use non-targeted applications of foliar fungicide to improve malting barley production under higher fertility situations. An experiment was conducted at 80 sites (location by year combinations) with a 12 combinations of N/P/K rate-placement to determine if applications of propiconazole improve malt barley yield and quality under high fertility conditions. Treatment differences for days to maturity were no greater than about 1 d. Fungicide by fertility treatment interactions were not significant (P>0.05). Applications of propiconazole improved yield by 305 kg ha−1 (6%) and plump kernels by 3 g kg−1 (3%) across all fertility treatments, which included N fertilizer rates ranging from 0 to 90 kg N ha−1. The effect of fungicide on yield was greatest at sites with highest yield potentials (ca. 8000 kg ha−1) and was not statistically significant at lower-yielding sites (ca. 3000 kg ha−1). Application of propiconazole also improved net returns [barley revenue – (N cost+propiconazole cost+other operating costs)] by $22 ha−1 with higher barley priced ($190 T−1) and high yield potentials. At sites with low yield potential, the application of propiconazole resulted in net losses of about $7 ha−1 compared with not applying propiconazole. Nitrogen fertilizer rates from 0 to 90 kg N ha−1 (15/30-0 P-K fertilizer treatment combinations) increased yield and protein concentration, and reduced plump kernels in a curvilinear fashion when averaged across fungicide treatments. Net returns were maximized at N fertilizer rates slightly less than 90 kg N ha−1, depending on the price/cost regime. Consequently, malt barley producers will have to consider tradeoffs regarding N fertilizer rate that optimizes yield/returns and kernel quality. Also, decisions regarding fungicide applications and N/P/K fertilizer rate-placement applications can be made independent of each other for malt barley production.

scholarly journals THE INCREASING YIELD AND QUALITY OF WAXY CORN (Zea mays ceratina L.) THROUGH COCONUT ASH FERTILIZER APPLICATIONS

2018 ◽  
Author(s):  
MARIANNE REYNELDA MAMONDOL
Keyword(s):  
Organic Fertilizer ◽  
Linear Regression Analysis ◽  
Soil Surface ◽  
Fertilizer Application ◽  
Corn Production ◽  
Yield And Quality ◽  
Ear Height ◽  
Waxy Corn ◽  
Relationship Of

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.

Sign in / Sign up

Export Citation Format

Share Document