scholarly journals Foliar Sprays to Control Ear Invading Insects in Sweet Corn, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 87-87
Author(s):  
James J. Linduska ◽  
Marylee Ross ◽  
Karen Mulford ◽  
John Nottingham
Keyword(s):  
Soil Type ◽  
Sweet Corn ◽  
Block Design ◽  
Loamy Sand ◽  
Fresh Market ◽  
Foliar Sprays ◽  
Randomized Complete Block Design

Abstract ‘NK-199’ sweet corn was planted in 4-row plots 100 ft in length on 1 Jun ‘94. Distance between rows was 3 ft. Distance between plants within the row was 8 inches with the center 2 rows serving as record rows. Plots were replicated 4 times in a randomized complete block design. Sprays were applied with an International Harvester 770 Hi-Clear sprayer. The spray boom was adjusted to spray the silk area with each row being covered by 4 nozzles. The sprayer was equipped to treat 4 rows. All treatments were mixed in 10 gallons of water and applied at the rate of 25 gal/acre with 50 psi. Spray treatments were applied at 30% silk on 20 Jul, 24 Jul and 1 Aug. At harvest (4 Aug), 30 ears from the center 2 rows of each plot were husked and evaluated for worm damage as fresh-market (clean ears, no damage evident), processing (evidence of tip feeding but less than 3.6 cm tip damage), and culls (tip damage beyond 3.6 cm to the side and/or bottom). All worms found within the husk or ear were identified. The soil type was Norfolk “A” loamy sand.

scholarly journals Foliar Sprays to Control Ear-Invading Insects on Sweet Corn, 1997

1998 ◽  
Vol 23 (1) ◽  
pp. 95-96 ◽  
Author(s):  
James J. Linduska ◽  
Marylee Ross ◽  
Donna Baumann ◽  
Annika Parr
Keyword(s):  
Soil Type ◽  
Sweet Corn ◽  
Loamy Sand ◽  
Insect Damage ◽  
Fresh Market ◽  
Foliar Sprays

Abstract ‘NK-199’ sweet corn was planted in 4-row plots 100 ft in length on 29 May. Distance between rows was 3 ft. Distance between plants within the row was 8 inches. Plots consisted of 4 treatment rows with the center 2 rows serving as record rows. Plots were replicated 3 times in a RCB design. Sprays were applied with an International Harvester 770 Hi-Clear sprayer. The spray boom was adjusted to spray the silk area with each row being covered by 4 nozzles. The sprayer was equipped to treat 4 rows. All treatments were mixed in 10 gallons of water and applied at the rate of 25 gpa with 50 psi. Spray treatments were applied at 30% silk 21 Jul, 27 Jul, and 31 Jul, At harvest (8 Aug), 50 ears from the center 2 rows of each plot were husked and evaluated for insect damage for fresh-market (clean ears, no damage evident), processing (evidence of tip feeding but less than 3.6 cm tip damage), and culls (tip damage beyond 3.6 cm to the side and/or bottom). All insects found within the husk or ear were identified. The soil type was Norfolk “A” loamy sand.

scholarly journals Control on Late Season Sweet Corn with Foliar Sprays, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 88-88
Author(s):  
James S. Bowman ◽  
Margaret D. Campbell
Keyword(s):  
New Hampshire ◽  
Sweet Corn ◽  
Block Design ◽  
Larval Feeding ◽  
Harvest Time ◽  
Late Season ◽  
Foliar Sprays ◽  
Randomized Complete Block Design ◽  
The University ◽  
University Of New Hampshire

Abstract The ‘Honeymoon’ sweet corn used in this study was hand-planted in rows on 36 inch centers at the University of New Hampshire Kingman Farm, Madbury, NH on 24 Jun. Each plot consisted of a single 30-ft row of corn and each treatment was replicated 4 times and arranged in a randomized complete block design. Silk sprays were begun on 16 Aug (when approximately 10% of the plants were in silk) using a R & D CO2-pressurized (40 psi) single nozzle hand-held sprayer. These applications were repeated on 19, 23, and 27 Aug. The sprays were directed toward the silk zone on both sides of the plant at a delivery rate of 30.4 gal/acre. Evaluations were made at harvest time on 7 and 8 Sep by examining 25 ears from each replicate for the presence of larvae or larval feeding injury.

scholarly journals PENGARUH JARAK TANAM JAGUNG MANIS (Zea mays Saccharata STURT) DAN VARIETAS KUBIS (Brassica oleracea VAR. CAPITATA) TERHADAP HASIL JAGUNG MANIS DAN KUBIS PADA SISTEM TUMPANGSARI DI DESA CANDI KUNING, TABANAN

AGRICA ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 1-9
Author(s):  
I Wayan Sunarta
Keyword(s):  
Land Use ◽  
Sweet Corn ◽  
Block Design ◽  
Plant Spacing ◽  
Fresh Weight ◽  
Corn Plant ◽  
Dryland Farming ◽  
Randomized Complete Block Design ◽  
Two Factors ◽  
Short Season

Diversification of plant species is needed to anticipate price fluctuation of vegetables. Intercropping system compared to monoculture can give more benefits to farmers. The arrangement of plant spacings of sweet corn and cabbage variety is expected to result in higher yields and benefits in intercropping. The field experiment, which had the objective to study the effects of plant spacing of sweet corn and cabbage variety on yields of sweet corn and cabbage in the intercropping system, had been conducted from March to July 2008. The experiment was carried out at the dryland farming area at Candikuning Village, district of Baturiti, Tabanan regency, 1.200 m asl. In the experiment, a randomized complete block design with two factors namely plant spacing of sweet corn (120 cm x40 cm, 180 cm x 40 cm and 240 cm x 40 cm) and variety of cabbage (Green Nova and Summer-Autumn) were used. Plant spacing of cabbage was 60 cm x 40 cm. All treatments were replicated four times. The results of the experiment showed that the effect of interaction between plant spacing of sweet corn and cabbage variety in intercropping was not significant on yields of sweet corn and cabbage. Individually, sweet corn plant spacing of 120 cm x40 cm gave the highest fresh weight of cob without husk (10,91 t ha"'), which was 44.50% and 80.93% respectively higher than the spacing of ! 80 cm x 40 cm and 240 cm x 40 cm. The spacing of 180 cm x 40 cm resulted in not the significantly different fresh weight of cob with husk but gave the highest fresh weight of cabbage heads (56.101 ha'1), which was 27.36% higher than that at sweet corn spacing of 120 cm x 40 cm and was not significantly different from that at 240 cm x 40 cm. Cabbage variety Green Nova gave the highest head (56.101 ha1), which was 14.48% higher than variety Summer-Autumn. Intercropping between cabbage variety Green Nova and Sweet corn at 180 cm x 40 cm spacing resulted in the highest benefit (Rp. 20,488125 t ha'1), which was Rp. 3,335500 higher than the average benefit of cabbage monoculture. The efficiency of land use in intercropping was higher (LER: 1.69) than in monoculture (LER: 1). It is suggested to use cabbage variety Green Nova intercropped with sweet corn at I 80 cm x 40 cm spacing. An experiment studying the effect of cabbage intercropped with sweet corn and other short season vegetables planted after harvesting cabbages is also suggested.

scholarly journals BORON APPLICATION TIMING AND RATE ON BLISTER-LIKE SYMPTOMS IN `HERNANDEZ'

HortScience ◽  
1996 ◽  
Vol 31 (5) ◽  
pp. 760g-761
Author(s):  
Jonathan R. Schultheis ◽  
Dennis E. Adams
Keyword(s):  
Foliar Application ◽  
Block Design ◽  
Storage Roots ◽  
Fresh Market ◽  
Application Timing ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Good Yielding ◽  
And Storage

Boron has been used to overcome the disorder blister in varieties such as `Jewel'. `Hernandez' is an attractive, good-yielding variety with uniform shape that will consistently pack out at 80% to 90%. Over time in storage, however, roots develop blister-like symptoms, rendering roots unmarketable for fresh market. Our objective was to evaluate the effect of different B rates and application times on the yield and quality of `Hernandez' roots. Rates were varied up to 2.24 kg actual B/ha 6 days after planting, while various soil and foliar application times (6, 34, and 69 days after planting) were evaluated at 1.12 kg·ha–1. In 1994, three row plots were arranged in a randomized complete block design and replicated four times. Planting was on a deep sand to maximize the effect of the B carrier Solubor. Roots were harvested, graded, and weighed 120 days after planting and storage roots evaluated for blister-like symptoms in Mar. 1995. No significant differences in yield were attributed to B rate or application method. Blister-like symptoms were more severe when no B was applied; however, application of B did not eliminate symptoms, as most roots had the blister-like appearance. Boron application did not solve the problem, but symptoms were less apparent when some B was applied.

scholarly journals 446 PB 259 GAIN FROM RECURRENT SELECTION IN FOUR FRESH-MARKET CUCUMBER POPULATIONS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 495b-495
Author(s):  
Todd C. Wehner
Keyword(s):  
Recurrent Selection ◽  
Block Design ◽  
Summer Season ◽  
Spring Season ◽  
Fresh Market ◽  
Randomized Complete Block Design ◽  
Sib Families ◽  
Quality Rating ◽  
Population Improvement

Several major traits (yield, earliness, quality) of interest to cucumber (Cucumis sativus L.) breeders are quantitatively inherited. The objective of this study was to determine the progress made on such traits using recurrent selection in 4 fresh-market cucumber populations (NCWBS, NCMBS, NCES1, NCBA1). During population improvement, 1 to 2 replications of 200 to 335 half-sib families were evaluated for 5 traits: total, early and marketable fruits per plot, a quality rating, and a simple weighted index (=.2Total/2 + .3Early + .2%Marketable/10 + .3Quality). Families from each population were intercrossed in an isolation block during each summer using remnant seeds of the best 10% selected using the index. Progress was evaluated using a split-plot treatment arrangement in a randomized complete block design with 32 replications in each of 2 seasons (spring and summer). Whole plots were the 4 populations, and subplots were the 11 cycles (cycles 0-9 plus checks). Greatest gains were made for the NCBA1 population, with an average of 45% gain from cycle 0 to 9 over the 5 traits, and for early yield, with an average of 58% gain from cycle 0 to 9 over the 4 populations. Populations were improved for performance in a selected (spring season) as well as a non-selected environment (summer season).

scholarly journals Seed Maggot Control on Sweet Corn, 1995

1996 ◽  
Vol 21 (1) ◽  
pp. 114-114
Author(s):  
D. R. Webb ◽  
P. M. L. Hessney ◽  
C. J. Eckenrode
Keyword(s):  
Soil Fungi ◽  
Sweet Corn ◽  
Block Design ◽  
Meat And Bone Meal ◽  
Fruit And Vegetable ◽  
Bone Meal ◽  
Randomized Complete Block Design

Abstract Two varieties of sweet corn seeds were planted 23 Jun at the Fruit and Vegetable Research Farm near Geneva, NY. Plots were single rows 25 ft long replicated 4 times in a randomized complete block design. All seeds were planted using a hand pushed “V” belt seeder at the rate of 100 seeds/25 ft. Seeds were treated before planting with Captan 75 at the rate of 1 ¾ oz dry formulation/seed cwt to minimize seed rots induced by various soil fungi. Insecticides were applied at planting either in-furrow or as a “T” band. Rows were baited by hand with about a cup/row of meat and bone meal immediately after planting to increase fly oviposition. Injury was determined by digging 25 new seedlings with seeds still attached on 10 Jul and inspecting each seed remnant for the presence of SM larvae and/or feeding injury.

scholarly journals Potato Insect Control, 1992

1994 ◽  
Vol 19 (1) ◽  
pp. 127-127
Author(s):  
A. C. Slocombe ◽  
D. N. Ferro
Keyword(s):  
Soil Type ◽  
Second Generation ◽  
Sandy Loam ◽  
Block Design ◽  
Insect Control ◽  
Egg Hatch ◽  
Egg Masses ◽  
Fine Sandy Loam ◽  
Randomized Complete Block Design ◽  
Potato Insect

Abstract Potatoes were planted on 1 May in South Deerfield, Massachusetts. Fertilizer (600 lbs 10N:10P:10K/ acre) was banded into the furrow at planting. Soil type was a fine sandy loam with a pH of 5.6. Manzate (fungicide) was applied at 1 lb. Al/acre on 1 Jul. CPB densities on 4 Jun were 1.2 adults, 50 eggs, 0.3 early instars per plant, and CPB densities on 15 Jun were 3.3 adults, 167 eggs, 6 early instars and 1.7 late instars per plant. Treatments were replicated 4 times in a randomized complete block design. Each plot consisted of two 30 ft. rows with a 6 ft. fallow area between plots. Treatments were applied with CO2-pressurized sprayers at 40 psi, delivering 70 gal/acre. Novodor and Foil OF were applied on 5 (first hatch), 15 (30% hatch) and 22 (50% hatch and 4th instar observed) Jun. All other applications were made on 15, 22, and 29 Jun. For second generation larvae, percentage egg hatch was based on flagging 10 egg masses at the beginning of the ovipositional period, using the percentage hatch based on these eggs. For second generation, Novodor and Foil OF were applied on 6 (first hatch), 8 (30% hatch) and 10 (50% hatch) Jul. All other treatments were applied on 13 (observed 3rd instars) and 24 Jul.

scholarly journals Potato Insect Control, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 120-121
Author(s):  
Andrew C. Slocombe ◽  
David N. Ferro
Keyword(s):  
Soil Type ◽  
Sandy Loam ◽  
Block Design ◽  
Insect Control ◽  
Population Densities ◽  
Fine Sandy Loam ◽  
Randomized Complete Block Design ◽  
Separate Treatment ◽  
Potato Insect

Abstract Potatoes were planted on 30 Apr in South Deerfield, Massachusetts. Fertilizer (600 lbs 1 ON: 10P:1 OK/acre) was banded into the furrow at planting, and an additional 200 lbs was applied at hilling on 30 Jun. Soil type was a fine sandy loam with a pH of 5.6. Manzate (fungicide) was applied at 1 lb. Al/acre on 30 Jun and 25 Jul. Treatments were replicated 4 times in a randomized complete block design. Each plot consisted of two 30 ft. rows with a 6 ft. fallow area separating each plot. Treatments were applied with CO2-pressurized sprayers at 40 psi, delivering about 70 gal/acre. CPB population densities were determined by counting larvae on 5 plants or whole stalks in each plot. The number of early instars (first and second) or late instars (third and fourth) were recorded. Admire was applied in the furrow at planting (136 g AI/A), and in a separate treatment it was applied to the base of the plants on 8 Jun (91 g AI/A). All foliar treatments were first applied on 15 Jun, and the 7 day treatments were applied again on 22, 29 Jun, 6, 13, 20 and 27 Jul. The 14 day treatments were applied on 15, 29 Jun, 13 and 27 Jul.

scholarly journals Soil and Foliar Treatments to Control Insects in Sweet Potatoes, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 146-146
Author(s):  
John Speese
Keyword(s):  
Block Design ◽  
Light Trap ◽  
Eastern Shore ◽  
Agricultural Experiment Station ◽  
Sweet Potatoes ◽  
Foliar Sprays ◽  
Corn Rootworms ◽  
Randomized Complete Block Design ◽  
Agricultural Experiment ◽  
Trap Catches

Abstract Sweet potatoes were planted on 22 Jun at the Eastern Shore Agricultural Experiment Station, Painter, VA. Each plot consisted of 3 rows 20 ft. long with 3 ft. spacing between rows. Plots were separated by an untreated guard row and replicated 6 times in a randomized, complete block design. Mocap treatments were applied and incorporated on 10 Jun to avoid phytotoxicity. Lorsban and Temik were applied and incorporated immediately prior to planting. Mocap and Lorsban were broadcast using a 6 flat fan nozzle boom backpack sprayer delivering 20 gal water/acre. Temik was applied in a 12 inch band using a hand-held shaker. Sevin foliar sprays were started on 14 Jul, after the first clickbeetles (wireworm adults) were caught in the black light trap at Painter. Clickbeetle light trap catches were used as a basis for determining dates for the Sevin threshold sprays. The Sevin schedule sprays were applied weekly from 14 Jul through 30 Aug. The Sevin threshold sprays were applied on 14 and 27 Jul, and 9 and 30 Aug. Foliar sprays were applied in 40 gal water/acre using the same sprayer described above. On 18 Oct, the center row of each plot was harvested and 25 market-sized roots were randomly selected to determine insect damage. Damage from wireworms, southern corn rootworms (Diabrotica) and Systena flea beetles is very similar and thus recorded and analyzed as a complex (WDS damage).

scholarly journals EFFECT OF VARIETIES AND DIFFERENT SOURCES OF NITROGEN FERTILIZER ON YIELD AND YIELD CONTRIBUTING CHARACTERS OF BABY CORN

2021 ◽  
Vol 5 (1) ◽  
pp. 01-05
Author(s):  
Md. Humaun Kabir ◽  
Md. Delwar Hossain ◽  
Md. Harun Or Rashid ◽  
Md. Shahriar Kobir
Keyword(s):  
Nitrogen Fertilizer ◽  
Sweet Corn ◽  
Block Design ◽  
Soil Health ◽  
Poultry Manure ◽  
Nutrient Supply ◽  
Corn Production ◽  
Randomized Complete Block Design ◽  
Fodder Yield ◽  
Different Sources

Maize as well as baby corn is an exhaustive crop in terms of nutrient and water uptake from soil hence soil health become deteriorate easily and as different amounts and forms of nutrient supply in baby corn affect the productivity of baby corn so combination of organic and inorganic sources of nutrient is beneficial for soil heath and to maximize the productivity of baby corn thus an experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during November 2017 to February 2018 to investigate the effect of varieties and sources of nitrogen fertilizer on yield and yield contributing characters of baby corn. The experiment was laid out in randomized complete block design (RCBD) with three replications. The experiment consisted of two varieties viz., BARI Sweet corn-1(V1), Baby star (V2) and five sources of nitrogen fertilizer viz.,100% recommended N from urea(N1),75% N from urea + 25% N from cowdung (N2), 50% N from urea + 50% N from cowdung (N3), 75% N from urea + 25% N from poultry manure(N4),50% N from urea + 50% N from poultry manure(N5).Yield and yield contributing characters of baby corn were significantly influenced by variety, sources of nitrogen fertilizer and their interactions. The highest number of cob plant-1 (1.67), cob length (13.50 cm), cob girth(3.84 cm), cob yield with husk (14.66 t ha-1), cob yield without husk (3.52 t ha-1), and fresh fodder yield (42.50 t ha-1) were recorded when Baby star was fertilized with N2 (75% N from urea + 25% N from cowdung) treatment. Therefore, it may be concluded that Baby star is the promising baby corn variety when coupled with (75% N from urea + 25% N from cowdung) for maximizing baby corn production and improving soil health.

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