THE INFLUENCE OF Zn AND P FERTILIZER ON THE DRY MATTER YIELD AND NUTRIENT CONTENT OF FLAX (Linum usitatissimum L.) ON SOILS VARYING IN Ca AND Mg LEVEL

1989 ◽  
Vol 69 (3) ◽  
pp. 461-472 ◽  
Author(s):  
C. A. GRANT ◽  
L. D. BAILEY
Keyword(s):  
Linum Usitatissimum ◽  
Dry Matter ◽  
Nutrient Content ◽  
Yield Response ◽  
Dry Matter Yield ◽  
Chemical Parameters ◽  
Linum Usitatissimum L ◽  
Zinc Fertilization ◽  
P Fertilizer ◽  
P Application

Flax (Linum usitatissimum L.) was grown in two growth chamber experiments on a total of 16 Black Chernozemic soils varying in content of Mg, Ca, P, and Zn. On three of the soils, dry matter yield of flax increased in response to application of P. Phosphorus availability was greater with broadcast than with banded fertilizer applications. Increased yield in response to Zn application was observed on one-half of the soils. Applications of P that increased P level in the tissue above 0.46% led to consistent but nonsignificant decreases in yield and reduced the level of Zn in the tissue. Zinc fertilization increased Zn and decreased P level in the tissue. Yield response to P application was not strongly related to soil chemical parameters measured, but increased as tissue P level decreased and tissue Zn level increased. High levels of soil Mg and soil pH and high tissue levels of Mg and P were the factors most closely associated with a yield response to Zn applied with P. Key words: Flax, Linum usitatissimum, Ca, Zn, P, Mg, fertilizer placement

Interactions of zinc with banded and broadcast phosphorus fertilizer on the dry matter and seed yield of oilseed flax

1993 ◽  
Vol 73 (1) ◽  
pp. 7-16 ◽  
Author(s):  
C. A. Grant ◽  
L. D. Bailey
Keyword(s):  
Seed Yield ◽  
Dry Matter ◽  
Field Experiments ◽  
Growth And Yield ◽  
Dry Matter Yield ◽  
P Fertilizer ◽  
Dry Conditions ◽  
History Of ◽  
P Application ◽  
Soil Zn

Field experiments at four sites over 3 yr evaluated the effect of banded and broadcast application of fertilizer P, with and without application of Zn on dry matter yield at flowering, and seed yield of flax. Application of P fertilizer increased dry matter yield and seed yield on a number of soils even when crop growth and yield were restricted by extremely dry conditions. Banded P was more effective than broadcast or residual P in increasing flax yields. Increases in yield due to Zn application were infrequent and showed no definite relation to soil Zn or P. Increases in yields with Zn application generally occurred only where P had been broadcast that season or the year before, while decreases in yields with Zn occurred more frequently where P had been banded. The results showed that increases in flax yields in response to Zn application are most likely to occur where P fertilizer is broadcast at relatively high levels or on soils with a history of heavy P application. Key words: P placement, P, Zn, flax, yield, Zn-P interaction

scholarly journals EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD1

2020 ◽  
Vol 33 (1) ◽  
pp. 236-245
Author(s):  
EUDOCIO RAFAEL OTAVIO DA SILVA ◽  
MURILO MACHADO DE BARROS ◽  
MARCOS GERVASIO PEREIRA ◽  
JOÃO HENRIQUE GAIA GOMES ◽  
STEPHANY DA COSTA SOARES
Keyword(s):  
Decision Making ◽  
Spatial Variability ◽  
Dry Matter ◽  
Irregular Sampling ◽  
Descriptive Statistics ◽  
Dry Matter Yield ◽  
Chemical Parameters ◽  
Tropical Pastures ◽  
Chemical Attributes ◽  
Soil Chemical Parameters

ABSTRACT Studies on spatial variability of soil attributes of tropical pastures gather information that can assist in decision making about managements of these soils. The objective of the present study was to evaluate the spatial variability of soil chemical attributes and their effects on grass yield of Tifton 85. The experiment was carried out in an area of 3.91 ha at the Feno Rio Farm of the Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil. Soils of the 0-0.20 and 0.20-0.40 m layers were sampled considering an irregular sampling mesh, making a total of 50 georeferenced points. The parameters evaluated were: the soil chemical attributes pH, Al+3, Ca+2, Mg+2, Na+, K+, P, H+Al, and total organic carbon (TOC); and the Tifton 85 dry matter yield (DMY). The results of these parameters were subjected to descriptive statistics, linear correlation, and geostatistics, and maps were developed for the analyses. Regions with grass yields different from the general mean were found in the area, which presented mean grass yield of 2248 kg ha-1. The soil chemical parameters Na+, Ca+2, TOC, and H+Al were significantly correlated with DMY, confirming that they are important and affect the Tifton 85 grass yield. The mapping of the Tifton 85 cycle is important for understanding the variability of DMY. The investigation of areas with different productive potentials should be followed by development of maps of soil chemical attributes to correlate and understand the ratios that may be involved with these variations.

A comparison of the yield response of solin (cv. Linola 947) and flax (cvs. McGregor and Vimy) to application of nitrogen, phosphorus, and Provide (Penicillium bilaji)

1999 ◽  
Vol 79 (4) ◽  
pp. 527-533 ◽  
Author(s):  
C. A. Grant ◽  
J. C. P. Dribnenki ◽  
L. D. Bailey
Keyword(s):  
Seed Yield ◽  
Harvest Index ◽  
Field Studies ◽  
Yield Response ◽  
Straw Yield ◽  
Linum Usitatissimum L ◽  
Fertilizer Recommendations ◽  
P Fertilizer ◽  
Nitrogen Phosphorus ◽  
Penicillium Bilaji

Field studies were conducted at three locations over three years with Linum usitatissimum L. to determine whether the solin cultivar Linola 947 and the traditional oilseed flax cultivars McGregor and Vimy, differed in seed yield, straw yield and harvest index response to N and P fertilizer and the phosphorus-solubilizing fungus, Penicillium bilaji, marketed as "Provide". While cultivars differed in seed yield, straw yield and harvest index, the relative performance of the cultivars varied with site and year and did not relate to whether the cultivar was solin or traditional oilseed flax. The degree and pattern of response of straw yield and harvest index to N and/or P fertilization varied with year and location. Where significant differences occurred due to P or Provide management, seed yield and harvest index were lower and straw yield higher with application of Provide than with application of P fertilizer, indicating that Provide was less effective than P in enhancing seed yield of flax. Solin did not generally differ from traditional oilseed flax in the response of seed yield, straw yield and harvest index to fertilizer applications. Response of seed and straw yield to N and response of harvest index to P each differed among cultivars in only one-site year, while an N-by-P-by-cultivar interaction occurred in only one site-year for seed and straw yield. Considering the limited occurrence of cultivar-by-fertilizer interactions, fertilizer recommendations produced for traditional flax cultivars should also be applicable to solin cultivars. Key words: Seed yield, harvest index, cultivar

The effects of frequency of defoliation on the yield response of a perennial ryegrass sward to a wide range of nitrogen application rates

1978 ◽  
Vol 90 (3) ◽  
pp. 447-457 ◽  
Author(s):  
D. Reid
Keyword(s):  
Perennial Ryegrass ◽  
Dry Matter ◽  
Total Yield ◽  
Response Surfaces ◽  
Yield Response ◽  
Dry Matter Yield ◽  
Nitrogen Application ◽  
Nitrogen Rate ◽  
Wide Range ◽  
Cutting Frequency

SummaryIn a 3-year experiment on a sward of S. 23 perennial ryegrass 21 rates of nitrogen fertilizer ranging from 0 to 897 kg/ha were applied annually on plots cut three, five or ten times per year. The cutting dates within each frequency were decided on the basis of herbage growth stage. Four-parameter exponential curves fitted to the herbage yield data show that the pattern of response to nitrogen application in the five cuts per year treatment was markedly similar to that reported for a previous experiment (Reid, 1970). Alterations in the cutting frequency affected the pattern of dry-matter yield response to nitrogen, but not that of crude-protein yield response. The combined effects of cutting frequency and nitrogen rate are illustrated by response surfaces fitted to the dry-matter yield results using an extension of the equation for the curves fitted to the individual frequency results. These surfaces show that as the number of cuts per year was increased the total yield and the response to nitrogen decreased, but the response was maintained to an increasingly high nitrogen rate. The practical implications of the results are discussed in relation to intensive grazing managements for dairy cows.

A comparison of the yield responses of four grasses to a wide range of nitrogen application rates

1985 ◽  
Vol 105 (2) ◽  
pp. 381-387 ◽  
Author(s):  
D. Reid
Keyword(s):  
Dry Matter ◽  
Growth Curves ◽  
Yield Response ◽  
Dry Matter Yield ◽  
Meadow Fescue ◽  
Nitrogen Rate ◽  
Yield Data ◽  
Wide Range ◽  
Yield Responses ◽  
Nitrogen Rates

SUMMARYThe yield results are reported for an experiment in which 21 rates of nitrogen fertilizer were applied on pure-sown swards of four grasses, S. 24 and Barvestra perennial ryegrass, S. 37 cocksfoot and S. 53 meadow fescue. Growth curves fitted to the herbage yield data for each grass in each year are presented. On average the total dry-matter yield curves for the two ryegrasses were similar to one another, but showed a slightly smaller response to nitrogen rates below 300 kg/ha than did S. 23 ryegrass in an earlier experiment, and a more rapid decrease in response at higher rates. S. 37 cocksfoot had a similar dry-matter yield response to the ryegrasses at the low nitrogen rates, but the response decreased more rapidly at nitrogen rates over 250 kg/ha. The dry-matter yield response of S. 53 fescue decreased even more rapidly with nitrogen rates over 200 kg/ha. The mean estimates of the optimal nitrogen rate for each of the four grasses, i.e. the nitrogen rate at which the dry-matter response had decreased to 10 kg/kg N, was 380, 372, 357 and 327 kg N/ha for S. 24, Barvestra, S. 37 and S. 53 respectively, compared with 409 kg/ha for S. 23 ryegrass in the earlier experiment.

Effect of Sulphur and Zinc on Nodulation Dry Matter Yield and Nutrient Content of Soybean

2003 ◽  
Vol 6 (5) ◽  
pp. 461-466 ◽  
Author(s):  
H.M. Awlad ◽  
M.A.H. Chowdhury ◽  
N.M. Talukder
Keyword(s):  
Dry Matter ◽  
Nutrient Content ◽  
Dry Matter Yield

Fertilization of a mixed forage crop with fresh and composted chicken manure and NPK fertilizer: Effects on dry matter yield and soil and tissue N, P and K

2000 ◽  
Vol 80 (2) ◽  
pp. 337-344 ◽  
Author(s):  
P. R. Warman ◽  
J. M. Cooper
Keyword(s):  
Dry Matter ◽  
Nutrient Content ◽  
Chicken Manure ◽  
Dry Matter Yield ◽  
Forage Crop ◽  
Harvest Dates ◽  
Extractable P ◽  
Compost Application ◽  
Npk Fertilization

An experiment was conducted for 3 yr to compare the effects of fertilization of mixed forage with fresh and composted chicken manure and inorganic NPK. Fertility amendments were applied each year at three N levels and an unfertilized treatment was included. The experiment was conducted in two hay fields near Truro, Nova Scotia. Dry matter yield and forage N, P and K contents are reported for the 1992 and 1993 seasons. The nutrient content of the amendments as well as the efficiency of P and K use are discussed. Soil Mehlich 3-extractable P and K and KCl-extractable N were measured at two depths in September 1993. By the final year of the experiment, compost amendments produced yields as high as the recommended rate of NPK fertilization at both sites on both harvest dates. Medium rates of compost application also resulted in tissue N levels as high as or higher than the equivalent NPK treatments. The medium rate of manure application was equivalent in yield and tissue N to the compost treatments at the Acadia site, but had slightly lower yields and tissue N content at the Pugwash site. Compost P and K were relatively inefficiently used by the forage; this resulted in increased levels of Mehlich 3-extractable P and K in the 0- to 15-cm layer of the compost-amended plots. It was concluded that fertilization with compost or inorganic NPK, supplying equal amounts of N, can result in comparable yields and quality of forage. Key words: Chicken manure, compost, extractable NPK, forage, forage NPK, plant protein

scholarly journals Tomato Yield and Fruit Size Did Not Respond to P Fertilization of a Sandy Soil Testing Very High in Mehlich-1 P

HortScience ◽  
1999 ◽  
Vol 34 (4) ◽  
pp. 653-656 ◽  
Author(s):  
George Hochmuth ◽  
Osmar Carrijo ◽  
Ken Shuler
Keyword(s):  
Fruit Size ◽  
Yield Response ◽  
Soil Test ◽  
P Fertilization ◽  
Marketable Yield ◽  
Size Category ◽  
Tomato Yield ◽  
P Fertilizer ◽  
P Application ◽  
Very High

Tomato (Lycopersicon esculentum Mill.) was grown in southeastern Florida on sandy soils that tested very high in Mehlich-1 P to evaluate the yield response to P fertilization. One location was used in 1995–96, another in 1996–97. Prefertilization soil samples contained 290 (location 1) and 63 (location 2) mg·kg–1 Mehlich-1 P. Both soil test results were interpreted as very high in P, and P fertilizer was not recommended for the crop. Fertilizer treatments at both sites were 0, 25, 50, 100, 150, and 200 kg·ha–1 P. Neither total marketable yield nor yield in any fruit size category was affected by P fertilization in either season. Amounts of cull (undersized or misshapened) fruits increased quadratically with P fertilization in the second season. Whole-leaf P concentrations increased linearly or quadratically with P application, depending on sample periods, and were always above sufficiency values. Although many tomato growers apply P fertilizer irrespective of soil test recommendations, our results showed that added P was not needed on soils testing very high in P. Furthermore, withholding P applications to soils with high P concentrations will minimize potential P pollution of surface water and groundwater.

Nährstoffaufnahme der Zuckerrübe. Teil I: Rübe und Blatt

2017 ◽  
pp. 162-167
Author(s):  
Klaus Bürcky ◽  
Thomas Hetterich ◽  
Johannes Heyn ◽  
Dietmar Horn ◽  
Dierk Koch
Keyword(s):  
Sugar Beet ◽  
Nutrient Uptake ◽  
Dry Matter ◽  
Nutrient Balance ◽  
Nutrient Content ◽  
Field Trials ◽  
Current Data ◽  
Nutrient Export ◽  
Dry Matter Yield ◽  
Set Up

The yield of sugar beet has increased significantly in the last 20 years, as data on beet yields from Südzucker AG show. This led to the question of how the increased yield influenced the nutrient uptake of root and top. Therefore, beet and top were harvested in field trials set up to optimize the fertilization of sugar beet and, in addition to the yields, the concentrations of macronutrients and micronutrients in root and top were measured. A total of 114 environments were used for these studies and current data for nutrient uptake and nutrient export from sugar beet were determined. Root yields ranged from 65 to 115tha–1 and the top yields from 13 to 72tha–1. This corresponded to a dry matter yield of 14 to 26tha–1 for roots and to as little as 3.0 to 9.6tha–1 for tops. However, since the nutrient content in the roots was significantly lower than in the tops, less than 50% of the total uptake was found in the roots at harvesting time: N (49%), Mg (44%), K (36 %), Ca (34%), S (32%) and Na (12%). Among the macronutrients, it was only phosphorous which showed with 60% a higher amount of the nutrients in the roots than in the tops (about 40%). The results provide valuable information for a review and adaptation of current nutrient tables,the nutrient balance and, ultimately, fertilizer assessment.

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