INFLUENCE OF FOLIAR-APPLIED N-P-K FERTILIZERS ON PRODUCTIVITY AND NUTRITION OF JUNE-BEARING STRAWBERRIES

1988 ◽  
Vol 68 (1) ◽  
pp. 277-282 ◽  
Author(s):  
C. J. ROSEN ◽  
E. E. HOOVER ◽  
J. J. LUBY
Keyword(s):  
Total Yield ◽  
Soluble Solids ◽  
First Year ◽  
Soil Test ◽  
Flower Initiation ◽  
Fragaria Ananassa ◽  
Foliar Nutrient ◽  
Yield Quality ◽  
Second Year ◽  
Nitrogen Phosphorus

A 2-yr field experiment was conducted to determine the influence of supplemental N-P-K foliar fertilizers (9-8-7 or 16-2-3) applied during flowering, fruit enlargement and/or flower initiation on yield, quality, and nutrition of Earliglow strawberries (Fragaria × ananassa Duch.). All plots received soil applied fertilizer at planting and at renovation according to soil test recommendations. Foliar fertilizers did not significantly increase total yield at any of the rates or times of application employed. Average yields the first year were 1.5 times greater than those the second year, regardless of whether foliar fertilizers were applied. Treatments did not significantly affect mean berry weight or percent soluble solids. Concentrations of N and P in recently matured leaves sampled during harvest were not significantly affected by foliar treatments, but K level was increased in the second year of the study by some foliar treatments.Key words: Fragaria spp., foliar nutrient sprays, nitrogen, phosphorus, potassium, strawberry

White mulch and a south facing position favour strawberry growth and quality in high latitude tunnel cultivation

2007 ◽  
Vol 87 (2) ◽  
pp. 317-325 ◽  
Author(s):  
S. T. Karhu ◽  
R. Puranen ◽  
A. Aflatuni
Keyword(s):  
Plant Growth ◽  
Fruit Size ◽  
Soluble Solids ◽  
First Year ◽  
Fragaria Ananassa ◽  
Double Row ◽  
North East ◽  
Northern Latitudes ◽  
Soil Temperatures ◽  
Second Year

Polyethylene mulches with black or white surface were compared in seven strawberry (Fragaria × ananassa Duch.) genotypes in a 2-yr experiment. The plants were covered by an unheated walk-in tunnel at the beginning of the first harvest season. The effects of a south-west versus north-east position of plants within the double-row beds were also studied. Soil temperatures were higher under black mulch, especially mid-day temperatures on the bed surface in the southward position. White mulch favoured root and crown growth in the first year, and the southwest position increased plant growth in both years. With black mulch, lower carbohydrate reserves were observed after transplanting, and a decreased chlorophyll content of leaves was detected in the second year. Mulch colour did not affect yield quantity. The first-year harvest was advanced with black mulch, but in the second year, the harvest season was earliest on the south side of beds with white mulch. Black mulch decreased fruit size in the first year and the concentration of fruit soluble solids in both years. The results suggest that in northern latitudes white mulch improves strawberry plant growth and fruit quality over that obtained using black mulch, but enhanced yield is not to be expected when a double-row tunnel cultivation system is used. Key words: Fragaria × ananassa, mulch, plasticulture, polyethylene, strawberry, tunnel

CROP RESPONSE TO LIME AND FERTILIZER SUPERIMPOSED ON DIFFERENT TILLAGE TREATMENTS FOR A VIRGIN GREY WOODED SOIL

1963 ◽  
Vol 43 (2) ◽  
pp. 298-308
Author(s):  
Herman A. Hamilton ◽  
J. R. Lessard
Keyword(s):  
Surface Soil ◽  
The Other ◽  
First Year ◽  
Crop Response ◽  
Nitrogen And Phosphorus ◽  
Residual Phosphorus ◽  
Second Year ◽  
Tillage Treatment ◽  
Nitrogen Phosphorus ◽  
Forage Yields

A virgin Grey Wooded soil was subjected to different tillage treatments receiving various rates of nitrogen, phosphorus and lime. In a 5-year rotation of oats followed by 4 years of hay, oat forage yields with 24-inch plowing appeared to be less than those obtained with shallower tillage treatments, but the subsequent first- and second-year hay yields were substantially higher. Nitrogen and phosphorus significantly increased oat forage yields irrespective of tillage treatment. Increases in first-year hay yields due to residual phosphorus were highly significant with 12-inch and 24-inch plowing. Second-year hay yields were significantly increased by residual phosphorus on all tillage treatments with increases being in the order 12-inch plowing and disking greater than 6-inch and 24-inch plowing. Irrespective of tillage treatment, lowest hay yields were obtained in the first year of harvest. Despite the greater saturation of the sub-surface soil with bases, lime significantly increased hay yields on plots plowed to 24 inches. Whereas the legume component of the hay mixture was initially high on plots plowed to 24 inches, in the succeeding years the percentage decreased considerably. On the other hand, legume percentage, which was initially low, increased for plots that were disked or plowed to 6 inches. Plowing to a depth of 12 inches appeared to be the most satisfactory procedure in maintaining the best hay yields with a high percentage of legumes.

scholarly journals Assessment of the Potential of 1-Methylcyclopropene Treatments to Maintain Fruit Quality of the Common Fig (Ficus carica L. cv. ‘Bursa Siyahi’) during Refrigerated Storage

2014 ◽  
Vol 42 (2) ◽  
pp. 516-522 ◽  
Author(s):  
Okan OZKAYA ◽  
Songül ÇÖMLEKÇIOGLU ◽  
Hatice DEMIRCIOGLU
Keyword(s):  
Respiration Rate ◽  
Cold Storage ◽  
Ficus Carica ◽  
Soluble Solids ◽  
First Year ◽  
Limited Effect ◽  
Growing Seasons ◽  
The Common ◽  
Second Year

The fig fruit is a unique, climacteric, highly perishable subject to rapid physiological breakdown. Application of 1-methylcyclopropene (1-MCP) was tested to delay ripening of black fig (Ficus carica L. cv. ‘Bursa Siyahi’) during storage overtwo growing seasons. Fruits were pre-cooled to 1 °C for 6 hours and afterwards treated with 500 or 1000 nl l-1 of 1-MCP for24 hours. Treated fruits were stored for 10 days at 1 °C, 90-95% RH and then evaluated. 1-MCP treatments showed thatethylene production, respiration rate, weight loss and concentrations of glucose, fructose and total soluble solids (TSS) were negatively correlated to the 1-MCP doses during cold storage (with the exception of TSS in the first year of experiment and respiration rate in the second year of the experiment). In contrast, pulp firmness and colour (ho) during cold storage werepositively correlated to the 1-MCP applied doses. Results of this study showed that although 1-methylcyclopropene applications slowed down fruit softening during the 10 days of storage, 1-methylcyclopropene appeared to have a relatively limited effect on slowing ripening of ‘Bursa Siyahi’ figs.

scholarly journals Winter Wheat Grain Quality, Zinc and Iron Concentration Affected by a Combined Foliar Spray of Zinc and Iron Fertilizers

Agronomy ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 250 ◽  
Author(s):  
Etienne Niyigaba ◽  
Angelique Twizerimana ◽  
Innocent Mugenzi ◽  
Wansim Aboubakar Ngnadong ◽  
Yu Ping Ye ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Foliar Application ◽  
Iron Concentration ◽  
Foliar Spray ◽  
Triticum Aestivum L ◽  
First Year ◽  
Zn Concentration ◽  
Yield Quality ◽  
Second Year

Wheat (Triticum aestivum L.) is one of the main foods globally. Nutrition problems associated with Zinc and Iron deficiency affect more than two billion individuals. Biofortification is a strategy believed to be sustainable, economical and easily implemented. This study evaluated the effect of combined Zn and Fe applied as foliar fertilizer to winter wheat on grain yield, quality, Zn and Fe concentration in the grains. Results showed that treatments containing high Fe increased the yield. Grain crude fat content remained unaffected. Crude fiber was enhanced up to three-fold by 60% Zn + 40% Fe5.5 (5.5 kg ha−1 of 60% Zn + 40% Fe). Moreover, 80% Zn + 20% Fe5.5 (5.5 kg ha−1 of 80% Zn + 20% Fe) was the best combination for increasing crude protein. Zinc applied alone enhanced Zn concentration in grain. In addition, Fe was slightly improved by an application of Zn and Fe in the first year, but a greater increase was observed in the second year, where 100% Fe13 (13 kg ha−1 of 100% Fe) was the best in improving Fe in grain. Foliar application of Zn and Fe is a practical approach to increase Zn and Fe concentration, and to improve the quality of wheat grains.

Interference of bull thistle (Cirsiumvulgare) with growth of ponderosa pine (Pinusponderosa) seedlings in a forest plantation

1993 ◽  
Vol 23 (8) ◽  
pp. 1507-1513 ◽  
Author(s):  
John M. Randall ◽  
Marcel Rejmánek
Keyword(s):  
Growth Rate ◽  
Relative Growth Rate ◽  
Seedling Growth ◽  
Ponderosa Pine ◽  
First Year ◽  
Relative Growth ◽  
Path Analyses ◽  
Second Year ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

The biennial thistle Cirsiumvulgare (Savi) Tenore significantly reduced ponderosa pine (Pinusponderosa Dougl. ex Laws.) seedling growth during the second year of infestation but had insignificant effects in the first year when all thistles were in the rosette stage. Pine stem diameter relative growth rate was significantly negatively correlated with four different indices of thistle interference and with visual estimates of thistle cover. Total thistle density (adults + rosettes) within 2.0 m of target seedlings best explained differences in stem relative growth rate, but density of adults alone and visual estimates of thistle cover were nearly as good. Simple regressions indicated that soil moisture and pine predawn leaf water potential were significantly negatively correlated with thistle density and significantly positively correlated with stem relative growth rate, but multiple regressions and path analyses indicated that their effects on seedling growth were negligible relative to the other (unexplained) effects of thistle density. Foliar nitrogen, phosphorus, and potassium concentrations were not significantly correlated with thistle density and failed to explain differences in seedling growth. Although it remains unclear how thistles suppressed pine seedling growth, if these results hold true at other sites, plantation managers will have at their disposal relatively easy methods for assessing thistle interference.

scholarly journals Phytochemical properties and heavy metal accumulation in wheat grain after three years’ fertilization with biogas digestate and mineral waste

2017 ◽  
Vol 26 (3) ◽  
Author(s):  
Krzysztof Różyło ◽  
Michał Świeca ◽  
Urszula Gawlik-Dziki ◽  
Ewa Kwiecińska-Poppe ◽  
Sylwia Andruszczak ◽  
...  
Keyword(s):  
Wheat Yield ◽  
Heavy Metal Accumulation ◽  
First Year ◽  
Wheat Grain ◽  
Biogas Digestate ◽  
Yield Quality ◽  
Second Year ◽  
Materials Used ◽  
Bioaccumulation Index ◽  
Positive Effect

Non-standard materials used for plant fertilization, require characterization to reduce any possible undesired effects. The aim of this study was to investigate the effect of fertilization with biogas digestate (BD) and mining waste (carboniferous mudstones (MS) from coal mine) on wheat yield quality and the bioaccumulation of heavy metals in wheat grains in relation to conventional fertilization (NPK) and no fertilization. Using the co-application of waste (MS+BD), the highest yield was obtained in the first and second year, but in the third year, a slight decrease in yield was observed compared to NPK. In all years, BD and MS+BD fertilization increased the content of protein, wet gluten, and phenols in wheat grain compared to NPK and no fertilization. Waste fertilization had a positive effect on the antioxidant capacity index of grain but only in the first year. The bioaccumulation index (BAI) demonstrated that NPK decreased BAI for Zn, B, Cd, and Mn, whereas MS+BD decreased BAI for Cu, Sr, Pb, Co, Ba, and Cr.

scholarly journals Early selection of elite plants in Asparagus

Bragantia ◽  
2000 ◽  
Vol 59 (1) ◽  
pp. 21-26 ◽  
Author(s):  
ENRIQUE LUIS COINTRY ◽  
FERNANDO SEBASTIÁN LÓPEZ ANIDO ◽  
ILEANA GATTI ◽  
VANINA PAMELA CRAVERO ◽  
INÉS TERESA FIRPO ◽  
...  
Keyword(s):  
Yield Components ◽  
Total Yield ◽  
Selection Criterion ◽  
First Year ◽  
Population Total ◽  
The Third ◽  
Growing Seasons ◽  
Second Year ◽  
Efficient Selection ◽  
Selection Of

In order to establish an efficient selection criterion the variability in three asparagus populations was evaluated defining the most important yield components and analysing its evolution along three growing seasons. The yield components, coefficient of variation (CV) and the proportion of plants contributing to 80% of the total yield were estimated. The elite plants were selected by mean of total yield and clusters techniques. Multiple regression showed that spear number (SN) and spear weight (SW) were the most important yield components. In every population, total yield (TY) and SN showed the highest values of CV, independently of sex. 69% of the plants contributed to the 80% of the total yield in the first year while in the second and third year the contribution was 57%. At the end of the third year, 17 plants were selected by the average of the total yield and 43 by clusters. It is suggested to select for SW in the first year, reducing in 68% the experimental material. In the second year, the selection for SN would reduce to 5% the plants to evaluate for total yield in the third year. In this way the selected plants are the same but the number of plants to evaluate is dramatically reduced along the years, therefore facilitating the breeders work.

scholarly journals Yield, quality and foliar nutrient concentration of 'Orlando' tángelo under different fertilizer regimes

1969 ◽  
Vol 85 (1-2) ◽  
pp. 41-47
Author(s):  
Agenol González-Vélez ◽  
Gerardo Ruiz-Sifre
Keyword(s):  
Nutrient Concentration ◽  
Fruit Weight ◽  
Foliar Nutrient Concentration ◽  
Foliar Nutrient ◽  
Cumulative Production ◽  
Foliar Concentrations ◽  
Yield Quality ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Different Levels

An experiment was done to evaluate the effect of different levels of nitrogen, phosphorus and potassium fertilization on the yield, quality and foliar nutrient concentration of 'Orlando' tángelo in a Corozaf clay soil. Nitrogen levels evaluated were 0,85.2,170 and 341 kg/ha. Levels of phosphorus evaluated were 0,12.4, 24.8 and 49.6 kg/ha; and potassium levels were 0, 47.8, 94.6 and 188 kg/ha. A significant linear response was found between the nitrogen application and the cumulative production of fruits per tree. High application of nitrogen was related to high cumulative production. No significant relationship was found between the phosphorus and potassium levels and the cumulative production. The application of different levels of nitrogen, phosphorus, and potassium had no effect on the average fruit weight and the quality of fruits in terms of pH, brix, acidity and brix/acidity rate. The different levels of nitrogen significantly affected the foliar nutrient concentration of nitrogen, calcium, potassium and phosphorus. Different applications of phosphorus significantly affected the foliar concentrations of calcium and potassium. The levels of potassium had no significant effect on the foliar concentrations of the different elements evaluated.

scholarly journals Chicken manure as soil amendment: Effect on yield and foliar nutrient content of tanier, and on chemical properties of the soil.

1969 ◽  
Vol 95 (3-4) ◽  
pp. 211-221
Author(s):  
Agenol González-Vélez
Keyword(s):  
Organic Matter ◽  
Chemical Properties ◽  
Nutrient Content ◽  
Low Fertility ◽  
Chicken Manure ◽  
First Year ◽  
Manure Application ◽  
Foliar Nutrient ◽  
Second Year ◽  
Effect On Yield

During two consecutive years, chicken manure effects on yield and foliar nutrient content of tanier, and on chemical properties of the soil were evaluated. Treatments were 0, 25 and 50 t/ha of chicken manure incorporated into the soil prior to planting the first year. No significant differences in yield were found among the chicken manure treatments. This lack of differences was attributed to the high coefficient of variation found in the experiment. Nevertheless, with the application of 25 t/ha we observed a 17% and 122% increase in yield on the first and second year of the experiment, respectively, compared to yield in the check treatment. This increase in yield could be related to the ample benefit of applied organic matter, especially in low fertility soil. Only foliar nitrogen content showed a significant increase with the chicken manure application in both years, whereas potassium content increased with manure application during the second year. The application of chicken manure caused an increase of organic matter, electric conductivity and N, P, K and Mg content in the soil during the first year.

scholarly journals Orchard Cooling with Pulsed Overtree Irrigation to Prevent Solar Injury and Improve Fruit Quality of `Jonagold' Apples

HortScience ◽  
1996 ◽  
Vol 31 (5) ◽  
pp. 802-804 ◽  
Author(s):  
P. Parchomchuk ◽  
M. Meheriuk
Keyword(s):  
Fruit Size ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
First Year ◽  
Average Surface ◽  
Solids Concentration ◽  
Second Year ◽  
Fruit Surface ◽  
Soluble Solids Concentration

Pulsed application of overtree irrigation for evaporative cooling of `Jonagold' apples (Malus domestica Borkh.) reduced visible solar injury by 15.8% (1991) and 9.4% (1992). Maximum fruit surface temperature was reduced by 8.1 °C on a day when the average surface mean of nonsprayed fruit rose to 45.6 °C. Air heated more slowly than the exposed fruit surface and was cooled only 1 to 2 °C by overtree irrigation. Cooling did not affect fruit size, firmness, or redness but reduced soluble solids concentration and increased titratable acidity. Storage breakdown was unaffected in the first year but was reduced by 6.0% in the second year.

Sign in / Sign up

Export Citation Format

Share Document