EFFECTS OF NITROGEN, PHOSPHORUS, POTASSIUM, AND LIME ON YIELD AND MATURITY OF GREEN PEAS

1980 ◽  
Vol 60 (2) ◽  
pp. 599-604 ◽  
Author(s):  
J.A. CUTCLIFFE ◽  
D.C. MUNRO
Keyword(s):  
Dolomitic Limestone ◽  
Lime Treatment ◽  
Dark Skin ◽  
Phosphorus And Potassium ◽  
Cropping Seasons ◽  
Nitrogen Phosphorus ◽  
Green Peas

The effects of nitrogen, phosphorus, and potassium on the yields of Dark Skin Perfection peas were investigated at nine locations during three successive cropping seasons. All three nutrients were applied broadcast at rates of 0, 30, 60, and 90 kg/ha in randomized block experiments with four replicates. A lime treatment was also included consisting of an application of dolomitic limestone in the furrow with the seed at the rate of 400 kg/ha. Yields of shelled peas, adjusted to tenderometer 100, varied from approximately 4 to 7 tonnes/ha and were not substantially affected by the fertilizer or lime treatments. Germination was in the range of 85–95% and was not affected by the treatments. Vine length tended to increase as the rate of all three nutrients was increased, but the pea/vine ratio (by weight) was not affected. Maturity was slightly delayed by increasing rates of added nitrogen and slightly advanced by increasing rates of added phosphorus.

EFFECTS OF BORON, MOLYBDENUM AND LIME ON YIELD AND LEAF TISSUE NUTRIENT CONCENTRATION OF GREEN PEAS

1986 ◽  
Vol 66 (4) ◽  
pp. 971-976 ◽  
Author(s):  
J. A. CUTCLIFFE
Keyword(s):  
Tissue Concentration ◽  
Leaf Tissue ◽  
Nutrient Concentrations ◽  
Dolomitic Limestone ◽  
Lime Treatment ◽  
Tissue Concentrations ◽  
Growing Seasons ◽  
Application Rates ◽  
Tissue Nutrient Concentration ◽  
Green Peas

The effects of preplant soil applications of B, Mo and dolomitic limestone on yields and leaf tissue nutrient concentrations of Rally peas were investigated at five locations with initial soil pH levels of 5.1–5.9. Experiments were conducted for two consecutive growing seasons at each location. All treatments were preplant incorporated in a 2 × 2 × 2 factorial design with five replicates. Yields of shelled peas, adjusted to tenderometer 100, varied between experiments from 1.1 to 4.8 × 103 kg ha−1 and were not generally affected by B, Mo or lime at application rates of 2.0, 0.25 and 10 000 kg ha−1, respectively. Also, the micronutrient and lime treatments had no significant effects on germination, vine length, pea/vine ratio or maturity. Leaf tissue B, Mo and Mg concentrations were increased by the applications of B, Mo and dolomitic limestone, respectively. However, leaf tissue Ca concentration was not affected by the lime treatment. The results indicate that leaf tissue concentrations of 16–74 μg g−1 B, 0.04–1.34 μg g−1 Mo and 0.23–0.55% Mg were within the sufficiency range.Key words: Peas, boron, molybdenum, dolomitic limestone, yield, leaf tissue concentration

EFFECTS OF NITROGEN, PHOSPHORUS AND POTASSIUM ON YIELD AND MATURITY OF CAULIFLOWER

1976 ◽  
Vol 56 (1) ◽  
pp. 127-131 ◽  
Author(s):  
J. A. CUTCLIFFE ◽  
D. C. MUNRO
Keyword(s):  
Brassica Oleracea ◽  
Nitrogen And Phosphorus ◽  
Phosphorus And Potassium ◽  
Cropping Seasons ◽  
Nitrogen Phosphorus ◽  
Brassica Oleracea L

The effects of nitrogen, phosphorus, and potassium on the yield and maturity of cauliflower (Brassica oleracea L. ssp. botrytis cv. Snowball Y) were investigated at a total of nine locations during three successive cropping seasons. Yields were substantially increased at most locations by applications of nitrogen and phosphorus but were only slightly affected by applied potassium. Maturity was slightly delayed by a lack of phosphorus. Maximum yields were generally obtained where N was applied at 112–224 kg/ha, P at 49–98 kg/ha, and K at 93 kg/ha.

EFFECTS OF NITROGEN, PHOSPHORUS, AND POTASSIUM ON RUTABAGA YIELDS

1973 ◽  
Vol 53 (2) ◽  
pp. 357-361 ◽  
Author(s):  
J. A. CUTCLIFFE ◽  
D. C. MUNRO
Keyword(s):  
Nitrogen And Phosphorus ◽  
Soil P ◽  
Phosphorus And Potassium ◽  
Cropping Seasons ◽  
Nitrogen Phosphorus

The effects of nitrogen, phosphorus, and potassium on the yield and shape of rutabagas (Brassica napobrassica Mill., cult York) were investigated at three locations each year during three successive cropping seasons. Total and marketable yields were increased at most locations by applications of nitrogen and phosphorus, but applied potassium increased yields at only three locations. For maximum yields, rates of 90–112 kg/ha of N and 49–130 kg/ha of P were necessary. Where soil P levels were low, yield increases from applied N were obtained only when accompanied by adequate phosphorus. The ratio of the equatorial/polar diameters of the roots was increased by added N, and to a lesser extent, by applied P and K.

scholarly journals Comparisons between placing and broadcasting of nitrogen, phosphorus and potassium fertilizers for potatoes, peas, beans, kale and maize

1958 ◽  
Vol 51 (1) ◽  
pp. 53-61 ◽  
Author(s):  
F. V. Widdowson ◽  
G. W. Cooke
Keyword(s):  
The Other ◽  
Clear Relationship ◽  
Main Crop ◽  
Potato Fertilizer ◽  
Broad Beans ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Green Peas ◽  
The Way

1. In eight experiments on main-crop potatoes in 1953–4 placing 0·5 cwt. N/acre in a band beside the seed tended to give higher yields than broadcasting the dressing; when 1·0 cwt. N/acre was applied, broadcasting tended to be superior to placement. There were no consistent gains from placing 1·5 cwt. K2O/acre.2. Four other potato experiments in 1954–6 tested all combinations of placing and broadcasting two levels of nitrogen and potassium. There was no clear relationship between the effects of broadcasting or placing one nutrient and the way in which the other nutrient was applied. When 0·5 cwt. N was applied, placing gave higher yields in seven out of ten possible comparisons (one effect was significant). With 1·0 cwt. N/acre there were also seven of ten comparisons in favour of placement (three significant effects), but in two other comparisons broadcasting gave significantly higher yields. Placing potassium gave higher yields than broadcasting in sixteen out of twenty comparisons (six significant effects), in one of the remaining comparisons broadcasting potassium was significantly superior. Placing of the potassium and, to a lesser extent, the nitrogen components of a complete potato fertilizer is likely to be beneficial.3. In two experiments each on green peas and broad beans placing of phosphorus and potassium separately and together gave consistently higher yields than broadcasting these nutrients. When nitrogen was used in addition to phosphorus and potassium there were small gains in yield of broad beans provided the mixture was placed. There were no gains in yields of green peas from nitrogen however the mixture was applied.

EFFECTS OF SEED SPACING ON YIELD OF GREEN PEAS

1982 ◽  
Vol 62 (4) ◽  
pp. 1019-1022
Author(s):  
J. A. CUTCLIFFE
Keyword(s):  
Dark Skin ◽  
K Fertilizer ◽  
Seed Spacing ◽  
Green Pea ◽  
Cropping Seasons ◽  
Green Peas

Effects of seed spacing on green pea yields were investigated at nine locations during three successive cropping seasons. Dark Skin Perfection (freezer) and Medalist (canner) were seeded with and without applied N-P-K fertilizer in rows spaced 8.9, 13.3 and 17.8 cm apart with various in-row spacings of 3.8–10.2 cm. Yields of shelled peas harvested at the proper stage for processing and adjusted to tenderometer 100 were not substantially affected by the spacing or fertilizer treatments. The addition of 15-15-15 fertilizer at 392 kg/ha tended to increase vine length and delay maturity but the effects were slight and generally not significant. The spacings employed had no effect on vine length, pea/vine ratio or maturity.

scholarly journals Influence of fertilizers, minor elements, and soil ph on the growth and protein content of tropical kudzu

1969 ◽  
Vol 37 (1) ◽  
pp. 81-95
Author(s):  
Pablo Landrau, Jr. ◽  
George Samuels ◽  
P. Rodríguez
Keyword(s):  
Protein Content ◽  
Protein Production ◽  
Acid Soils ◽  
Minor Element ◽  
Low Fertility ◽  
Lime Treatment ◽  
Nitrogen And Phosphorus ◽  
Minor Elements ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

The effect of fertilizers and lime on the yield and protein production of tropical kudzu, as observed in the experiments here reported, is as follows: 1. In a greenhouse experiment, kudzu yields increased with increased pH on limed soils, with the highest yield at pH 7.5. 2. Nitrogen and phosphorus produced significant increases in the yield of green forage in a fertilizer experiment on a Río Piedras clay. No such increases were obtained with potash fertilizers. 3. Liming increased yields for the first cutting of kudzu only in a fertilizer- lime experiment on a heavy plastic Fajardo clay. Nitrogen was also of significant value in increasing forage yields and protein for the first cutting only. The second and third cuttings had no yield or protein increases that could be attributed to any fertilizer or lime treatment. 4. At Corozal, on a friable, acid Lares clay, kudzu did not respond to nitrogen, phosphorus, and potassium fertilizers. The response to liming was in protein content and then only in the second and third cuttings. 5. The use of nitrogen and lime is of value in establishing good productive stands of kudzu on very acid soils (pH below 5) of low fertility. 6. The effects of the use of borax and of magnesium oxide as minor-element fertilizers were negligible from the standpoint of yield and protein production.

Effects of Water-Nitrogen Interaction on Absorption, Translocation and Distribution of Nitrogen, Phosphorus, and Potassium in Rice

2010 ◽  
Vol 36 (4) ◽  
pp. 655-664 ◽  
Author(s):  
Yong-Jian SUN ◽  
Yuan-Yuan SUN ◽  
Xu-Yi LI ◽  
Rong-Ping ZHANG ◽  
Xiang GUO ◽  
...  
Keyword(s):  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

scholarly journals Effects of serpentinite fertilizer on the chemical properties and enzyme activity of young spruce soils

2016 ◽  
Vol 30 (4) ◽  
pp. 401-414 ◽  
Author(s):  
Ewa Błońska ◽  
Kazimierz Januszek ◽  
Stanisław Małek ◽  
Tomasz Wanic
Keyword(s):  
Enzyme Activity ◽  
Chemical Properties ◽  
Molar Ratio ◽  
Tree Roots ◽  
Forest Zone ◽  
Negative Effect ◽  
Phosphorus And Potassium ◽  
One Year ◽  
Nitrogen Phosphorus ◽  
Experimental Plots

AbstractThe experimental plots used in the study were located in the middle forest zone (elevation: 900-950 m a.s.l.) on two nappes of the flysch Carpathians in southern Poland. The aim of this study was to assess the effects of serpentinite in combination with nitrogen, phosphorus, and potassium fertilizers on selected chemical properties of the soil and activity of dehydrogenase and urease in the studied soils. All fertilizer treatments significantly enriched the tested soils in magnesium. The use of serpentinite as a fertilizer reduced the molar ratio of exchangeable calcium to magnesium, which facilitated the uptake of magnesium by tree roots due to competition between calcium and magnesium. After one year of fertilization on the Wisła experimental plot, the pH of the Ofh horizon increased, while the pH of the mineral horizons significantly decreased. Enrichment of serpentinite with nitrogen, phosphorus, and potassium fertilizers stimulated the dehydrogenase activity in the studied organic horizon. The lack of a negative effect of the serpentinite fertilizer on enzyme activity in the spruce stand soil showed that the concentrations of the heavy metals added to the soil were not high enough to be toxic and indicated the feasibility of using this fertilizer in forestry.

scholarly journals Effects of nitrogen, phosphorus and potassium rates on Microdochium patch

itsrj ◽  
2021 ◽  
Author(s):  
Brian McDonald ◽  
Alec Kowalewski ◽  
Clint Mattox ◽  
Emily Braithwaite ◽  
Charles Schmid
Keyword(s):  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus
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