THE INFLUENCE OF IRRIGATION TREATMENTS ON YIELDS AND ON FERTILIZER UTILIZATION BY SWEET CORN AND SNAP BEANS

1962 ◽  
Vol 42 (2) ◽  
pp. 219-228 ◽  
Author(s):  
D. C. MacKay ◽  
C. A. Eaves
Keyword(s):  
Sweet Corn ◽  
Sprinkler Irrigation ◽  
Moisture Stress ◽  
Snap Beans ◽  
Natural Rainfall ◽  
Flower Stage ◽  
Irrigation Treatments ◽  
Phosphorus And Potassium ◽  
Yield Responses ◽  
Nitrogen Phosphorus

A range in each of the nutrients – nitrogen, phosphorus and potassium – was applied to an infertile Podzol soil in a split-plot experiment receiving the following sprinkler irrigation treatments: 1) "none", natural rainfall; 2) "minimum", 1 inch per irrigation during the critical stage of flowering to harvest; 3) "optimum", 1 inch per irrigation throughout the crop season; and 4) "excess", 2 inches per irrigation whenever 3) was applied.Both crops responded to irrigation during the flower to harvest stage but snap beans were more sensitive than sweet corn to moisture stress during the pre-flower stage. With both crops, yields from "excess" water were not significantly different from those of the "optimum" treatment.Greater yield responses were obtained from heavy rates of fertilizers with irrigation than without, and as a result the interaction of fertilizer × irrigation was significant in 3 of the 4 years. These effects appeared to be due mostly to the increased nutrient requirements of the larger crops, which resulted when moisture stress was removed, rather than to increased availability of native or applied nutrients. Phosphorus was the only nutrient whose concentration was consistently increased by irrigation, and this was slight.

OPTIMUM LEAF LEVELS OF NITROGEN, PHOSPHORUS AND POTASSIUM IN SWEET CORN AND SNAP BEANS

1962 ◽  
Vol 42 (2) ◽  
pp. 238-246 ◽  
Author(s):  
D. C. MacKay ◽  
J. S. Leefe
Keyword(s):  
Sweet Corn ◽  
Polynomial Regression ◽  
Crop Yields ◽  
Nutrient Levels ◽  
Regression Curves ◽  
Snap Beans ◽  
Flower Stage ◽  
Phosphorus And Potassium ◽  
Moisture Conditions ◽  
Nitrogen Phosphorus

Optimum nutrient levels were derived by comparing the polynomial regression curves relating leaf analyses and crop yields with rates of applied nitrogen, phosphorus and potassium. Uppermost mature leaves were used for analysis, and samples were collected at specific physiological stages of development.In two seasons the optimum levels in sweet corn differed by 7, 25 and 9 per cent, and in snap beans by 12, 29 and 11 per cent for nitrogen, phosphorus and potassium respectively. A low moisture supply was generally associated with lower optimum levels for all three nutrients, but "excess" moisture had only slight effects on these levels for any nutrient.Optimum nutrient levels which were calculated from ample moisture conditions were, for the tassel-emerging stage of sweet corn, 3.5, 0.38 and 2.5 per cent, and at the early flower stage of snap beans 5.1, 0.40 and 2.0 per cent for nitrogen, phosphorus and potassium, respectively. At the sixth to seventh leaf stage of sweet corn optimum levels were higher for nitrogen and potassium but lower for phosphorus (3.8, 3.1 and 0.34 per cent respectively), and at the pollen-shedding stage the levels were only slightly different than at tassel-emergence.

Soybean (Glycine max) Response to AC 263,222 and Chlorimuron as Influenced by Soil Moisture

1995 ◽  
Vol 9 (3) ◽  
pp. 553-560 ◽  
Author(s):  
Larry J. Newsom ◽  
David R. Shaw
Keyword(s):  
Soil Moisture ◽  
Field Experiments ◽  
Sprinkler Irrigation ◽  
Moisture Stress ◽  
Yield Reduction ◽  
Moisture Regime ◽  
Natural Rainfall ◽  
Moisture Regimes ◽  
Ac 263,222 ◽  
Moisture Conditions

Field experiments conducted in 1992 and 1993 evaluated differential response of 20 soybean cultivars to POST application of AC 263,222 or chlorimuron, as influenced by soil moisture. Natural rainfall was supplemented with overhead sprinkler irrigation to achieve three moisture regimes: excessive (12.5 cm/wk), optimum (5 cm/wk), and low (non-irrigated). Chlorimuron and AC 263,222 injured soybean. Excessive moisture did not increase soybean injury with chlorimuron for any of the cultivars tested compared to optimum moisture; however, 17 of 20 cultivars were injured more by AC 263,222 in combination with excessive moisture than optimum moisture. AC 263,222 reduced the height of five cultivars. Photosynthetic rate of several cultivars was reduced by both AC 263,222 and chlorimuron. Neither herbicide affected the number of nodes per main stem or seed weight; however, pod numbers were reduced for several cultivars with both herbicides. In the low moisture regime, AC 263,222 delayed the maturity of 18 of 20 cultivars with ‘Hutcheson’ maturity delayed 7.1 d. Excessive moisture when combined with AC 263,222 reduced yields for 12 cultivars, compared to five cultivars with chlorimuron. Under optimum moisture conditions, AC 263,222 reduced the yield of 10 cultivars, whereas chlorimuron reduced the yield of 9 cultivars. Low moisture stress only resulted in a yield reduction with 3 cultivars treated with AC 263,222.

scholarly journals Selected Macronutrients Uptake by Sweet Corn under Different Rates Liquid Organic Fertilizer in Closed Agriculture System

2017 ◽  
Author(s):  
Zainal Muktamar ◽  
Fahrurrozi Fahrurrozi ◽  
Dwatmadji Dwatmadji ◽  
Nanik Setyowati ◽  
Sigit Sudjatmiko ◽  
...  
Keyword(s):  
Nitrogen Uptake ◽  
Sweet Corn ◽  
Foliar Application ◽  
Block Design ◽  
Organic Fertilizer ◽  
Research Station ◽  
Treatment Combination ◽  
System P ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

In the last few years, soil deterioration due to excessive application of synthetic agrochemical has become growing concern. Use of organic fertilizer is believed to be able to enhance soil quality. The objective of this experiment was to determine nitrogen, phosphorus, and potassium uptakes by sweet corn as affected by local based liquid organic fertilizer (LOF) under closed agriculture system. The experiment was conducted in Closed Agriculture Production System (CAPS) Research Station in Air Duku Village, Bengkulu, Indonesia from March to June 2015, employing Randomized Completely Block Design with 2 factors. The first factor was 3 sweet corn genotypes, i.e. Talenta, Jambore, and Asian Honey and the second factor was 5 rates of LOF, i.e. 0, 25, 50, 75, and 100 mg l-1, respectively. Each treatment combination was replicated 3 times. Foliar application of LOF was carried out every week at 2-8 weeks after planting (WAP) with total volume of 600 ml per plant. Sweet corn leaves were sampled at the beginning of tassel emergence. The experiment revealed that sweet corn genotype significantly influenced the uptake of nitrogen, but not phosphorus and potassium. It was observed that Asian Honey genotype absorbed highest nitrogen as compared to other genotypes. In addition, increase in rates of LOF significantly raised nitrogen uptake by sweet corn, but not phosphorus and potassium.

EFFECT OF SPRINKLER IRRIGATION AND COOLING ON YIELD AND QUALITY OF SNAP BEANS

1974 ◽  
Vol 54 (3) ◽  
pp. 521-528 ◽  
Author(s):  
G. A. KEMP ◽  
K. K. KROGMAN ◽  
E. H. HOBBS
Keyword(s):  
Soil Moisture ◽  
Sprinkler Irrigation ◽  
Field Capacity ◽  
Moisture Stress ◽  
Fiber Formation ◽  
Soil Conditions ◽  
High Fiber ◽  
Snap Beans ◽  
Yield And Quality ◽  
Low Volume

High temperatures and dry soil conditions that frequently occur in southern Alberta during July and August may cause objectionably high fiber content of snap beans (Phaseolus vulgaris L.). During the period 1968–71, the response of bean yield and quality to cooling by low-volume sprinkler irrigation during hot weather at the time of pod development was studied. Low-volume sprinkling for cooling prevented undesirable fiber formation and alleviated, to some extent, soil moisture stress. Where soil moisture was returned to field capacity by irrigation at 7- to 10-day intervals, yield and quality also remained high without low-volume sprinkler cooling. Thus, under Alberta conditions, excess fiber formation appears to be closely related to the amount of available soil moisture and can be avoided by proper irrigation with conventional methods.

Comparison of broiler litter and inorganic nitrogen, phosphorus, and potassium for double‐cropped sweet corn and broccoli

1994 ◽  
Vol 17 (5) ◽  
pp. 859-867 ◽  
Author(s):  
J. E. Brown ◽  
J. M. Dangler ◽  
C. H. Gilliam ◽  
D. W. Porch ◽  
R. L. Shumack
Keyword(s):  
Sweet Corn ◽  
Inorganic Nitrogen ◽  
Broiler Litter ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

scholarly journals RESPONSE OF FOUR SUGARCANE VARIETIES TO FERTILIZERS DURING THE FIRST ISABELA CYCLE, 1946-51

1969 ◽  
Vol 38 (2) ◽  
pp. 73-95
Author(s):  
Pablo Landrau, Jr. ◽  
George Samuels
Keyword(s):  
Dry Matter ◽  
Phosphorus Deficiency ◽  
Phosphate Fertilizers ◽  
Sugarcane Varieties ◽  
The Third ◽  
Fertilizer Experiment ◽  
The Mean ◽  
Phosphorus And Potassium ◽  
Yield Responses ◽  
Nitrogen Phosphorus

A variety-fertilizer experiment using four varieties of sugarcane grown at seven different fertilizer levels was carried on for a plant cane and three ratoons at the Isabela Substation on a Coto clay. The major results were: (1) Nitrogen gave the highest yield increases in hundredweights of 96° available sugar per acre. (2) Phosphate fertilizers gave significant increases in yields of cane for the ratoon crops. (3) Potasium fertilizers did not increase the yield of sugar per acre. (4) Applications of nitrogen, phosphorus, or potassium did not significantly influence sucrose concentrations in the cane. (5) The leading two varieties, P.R., 902 and P.R. 905, gave significantly greater yields of sugar per acre than the other two varieties, P.O.J. 2878 and M. 28. (6) All varieties maintained their relative yielding power when tested at various fertilizer levels. (7) The reductions in yield from the omission of a fertilizer element for the mean of four crops were 22, 14, and 4 percent for nitrogen, phosphorus, and potassium, respectively. (8) Foliar analysis was made for leaves of the third ratoon only. Nitrogen values below 1.39-percent dry matter in the leaf represented definite deficiency, and response to nitrogen applications could be expected. Values of 0.16 percent of phosphorus in the leaf represented phosphorus deficiency, while there was no response to phosphates when the percentage was 0.20 or above. The potassium leaf values were above 2 percent and no yield responses were obtained at any potash level.

scholarly journals SNAP BEAN FERTILIZATION

HortScience ◽  
1992 ◽  
Vol 27 (11) ◽  
pp. 1176f-1176
Author(s):  
C. A. Mullins ◽  
R. A. Straw
Keyword(s):  
Cover Crops ◽  
Plant Size ◽  
Water Soluble ◽  
Snap Bean ◽  
Snap Beans ◽  
Foliar Nutrient ◽  
Pod Quality ◽  
Winter Cover Crops ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

`Blue Ridge' snap beans were planted with no fertilizer or banded rates of 560 kg ha-1 of a 10-4.4-8.3 fertilizer on soils with medium fertility in 1990 and 1991. Foliar applications of water soluble fertilizers containing nitrogen, phosphorus, and potassium were made at early bloom and in split applications at early bloom and repeated 10 days later. No response to fertilizer banded at planting or to foliar nutrient applications was found in snap bean yields or pod quality. Most fertilizer applications at planting increased plant size and lodging in 1990, but not in 1991. With the use of a rotation schedule and winter cover crops, snap beans showed no response to fertilization on soils of medium fertility.

scholarly journals Preliminary Nitrogen, Phosphorus, and Potassium DRIS Norms for Pineapple

HortScience ◽  
1990 ◽  
Vol 25 (6) ◽  
pp. 652-655 ◽  
Author(s):  
D.E. Angeles ◽  
M.E. Sumner ◽  
N.W. Barbour
Keyword(s):  
Nutrient Balance ◽  
Integrated System ◽  
Critical Values ◽  
Ananas Comosus ◽  
Data Sets ◽  
Nutrient Deficiencies ◽  
Factorial Experiments ◽  
Phosphorus And Potassium ◽  
Yield Responses ◽  
Nitrogen Phosphorus

Diagnosis and Recommendation Integrated System (DRIS) norms for pineapple [Ananas comosus (L.) Merr.] were developed from 1185 observations of previously published leaf nutrient composition and yield. The data were divided into high-yielding (> 60 t·ha-1, 650 observations) and low-yielding (< 60 t·ha-1, 535 observations) sub-populations and the norms derived by standard DRIS techniques. The validity of the norms was tested using independently published sets of data from factorial experiments in which yield responses to N, P, and K had been obtained. In the case of most data sets, the new DRIS norms were able to make correct diagnoses where critical values failed to make any diagnoses for N, P, and K. Thus, the DRIS approach revealed nutrient deficiencies in the range normally considered to be sufficient. Increased precision is found in the evaluation of nutrient balance in the DRIS approach, which is ignored in the case of critical values.

Yield responses of mulla mulla (Ptilotus exaltatus Nees.) seedlings to additions of nitrogen, potassium and phosphorus fertiliser

2000 ◽  
Vol 40 (6) ◽  
pp. 867 ◽  
Author(s):  
R. F. Brennan ◽  
M. G. Webb ◽  
A. M. Crowhurst
Keyword(s):  
Shoot Growth ◽  
Critical Concentration ◽  
Dry Weight ◽  
Nutritional Requirement ◽  
Soil Potassium ◽  
Phosphorus Fertiliser ◽  
Phosphorus And Potassium ◽  
Yield Responses ◽  
Nitrogen Phosphorus ◽  
Growth Of Seedlings

Native plants are increasingly being grown in Western Australia to produce flowers for export and the nutritional requirement of some of these species is not known. The nitrogen, phosphorus and potassium requirements for optimum growth of seedlings of one such species, Ptilotus exaltatus Nees., were measured in the glasshouse experiment reported here. There was a significant (P<0.05) growth response to nitrogen fertilisers over the range 20–80 mg N/kg soil. At all amounts of phosphorus and potassium, except for the nil-phosphorus treatments, the largest amount of applied nitrogen (80 mg N/kg soil) gave the maximum dry weight of shoots. The dry weight of shoots increased with the addition of phosphorus fertiliser up to 40 mg P/kg soil, particularly with 60 mg potassium and 80 mg N/kg soil. The addition of 160 mg P/kg soil and 120 mg K/kg soil depressed shoot growth at 80 mg N/kg soil. Potassium fertiliser increased plant growth at amounts up to about 60 mg K/kg soil. At the seedling stage of growth, critical concentration in shoots for deficiency was about 1.5% for potassium, and 0.9% for phosphorus. Adequate concentrations in shoots were about 1.7–2.7% for potassium, and 1.0–1.6% for phosphorus.

scholarly journals Yield Responses to Different N-P-K Levels, and Correlations With Foliar Analysis, in Sand-Culture Studies With Corn, Sugarcane, and Cotton

1969 ◽  
Vol 42 (3) ◽  
pp. 168-184
Author(s):  
J. A. Bonnet ◽  
A. R. Riera ◽  
J. Roldán
Keyword(s):  
Field Experiments ◽  
Sweet Corn ◽  
Relative Yield ◽  
Sand Culture ◽  
Available Phosphorus ◽  
Dent Corn ◽  
Yield Values ◽  
Phosphorus And Potassium ◽  
Major Nutrients ◽  
Yield Responses

The layout for 28 concrete pits is described herein where sand-culture and irrigation studies under cover have been carried in Puerto Rico since 1940 with certain crops: Sugarcane, beans, corn, sweetpotatoes, and cotton. The data for 10 experiments performed with sweet corn, dent corn, sugarcane, and cotton are reported. These data included N-P-K contents of the respective leaves at different crop ages and yields obtained by varying the N or P or K levels from deficient to sufficient values, but keeping other major and minor nutrients constant. These experiments were important in showing that foliar contents of the major nutrients at specific crop ages can be used to predict or correlate with relative yield values. These correlations are not generally obtained with phosphorous and potassium in field experiments because the initial available phosphorus and potassium contents of the soil are usually high.

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