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.

Determination of Nitrogen, Phosphorus, and Potassium in Water-Soluble Fertilizers by Inductively Coupled Plasma Emission Spectrometry

1987 ◽  
Vol 70 (4) ◽  
pp. 760-761
Author(s):  
Danton D. Nygaard ◽  
John J. Sotera
Keyword(s):  
Inductively Coupled Plasma ◽  
Water Soluble ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Extension Tube ◽  
Plasma Emission Spectrometry ◽  
Phosphorus And Potassium ◽  
Icp Torch ◽  
Nitrogen Phosphorus

Abstract A modification of an inductively coupled plasma (ICP) emission spectrometer is described that enables the simultaneous determination of nitrogen, phosphorus, and potassium in water-soluble fertilizers. A quartz extension tube is added to the ICP torch to exclude air from the plasma, thus allowing accurate nitrogen determination without adversely affecting sensitivity for other analytes. The modification also requires an 18 mg/L argon coolant flow to protect the tube from the heat of the plasma. Detection limits are 20 mg/L for nitrogen and 50 μg/L for phosphorus and potassium. Three NBS reference salts and 2 commercially available fertilizers were analyzed by the method, and results are in excellent agreement with known values.

scholarly journals Pollen derived blue fluorescent carbon dots for bioimaging and monitoring of nitrogen, phosphorus and potassium uptake in Brassica parachinensis L.

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33459-33465 ◽  
Author(s):  
Yinjian Zheng ◽  
Haoran Zhang ◽  
Wei Li ◽  
Yingliang Liu ◽  
Xuejie Zhang ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Potassium Uptake ◽  
Water Soluble ◽  
Biological Sources ◽  
Low Cytotoxicity ◽  
Phosphorus And Potassium ◽  
Fluorescent Carbon Dots ◽  
Nitrogen Phosphorus ◽  
Fluorescent Carbon

Carbon dots (CDs), synthesized from biological sources, have attracted attention in bioimaging and bioscience due to their low cytotoxicity, water-soluble nature, and biocompatibility.

scholarly journals (192) Commercial Evaluation of Green Snap Bean Varieties in Northwest Mexico

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1031E-1032
Author(s):  
Raul Leonel Grijalva-Contreras ◽  
Rubén Macias-Duarte ◽  
Fabián Robles-Contreras ◽  
Manuel de Jesus Valenzuela-Ruiz
Keyword(s):  
Irrigation System ◽  
Sowing Date ◽  
Good Alternative ◽  
High Yield ◽  
Market Prices ◽  
Snap Bean ◽  
Snap Beans ◽  
Northwest Mexico ◽  
Pod Quality ◽  
Dark Green

Production of green snap beans is a good alternative for Caborca, Sonora, Mexico. This vegetable can be harvested during the last week of November when market prices are good, and has good adaptation, and high yield and pod quality. The objective of this experiment was to evaluate 11 green snap bean varieties. This experiment was carried out on a commercial field, where seed was sown on 25 Aug. 2003. Density was 20 seeds/m (60 kg·ha-1). In this trial, we used a drip-irrigation system on beds 2 m apart and two rows with 36 cm of separation per bed. The first harvest was 68 days after the sowing date and lasted for 20 days, with four cuttings during that time. The varieties with greater yield were `Castaño', `Festina', and `Landmark' with 541, 494, and 463 boxes/ha (>30 pounds/box), respectively. The varieties with low yield were `Espada' and `Leader' with only 52 and 75 boxes/ha, respectively. The control `Savannah' yielded 235 boxes/ha. The pod quality distribution was 20%, 35%, and 45% for first, second, and third classification, respectively. `Savannah' and `Festina' had the best pod color (dark green). None of the varieties evaluated had pest or disease problems.

scholarly journals 006 SOIL NITROGEN MOVEMENT AND SOIL STRENGTH IN VARIOUS VEGETABLE CROPPING SYSTEMS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 428c-428
Author(s):  
Juan Carlos Gilsanz ◽  
D. C. Sanders ◽  
G. D. Hoyt
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Soil Depth ◽  
Cropping Systems ◽  
Potato Crop ◽  
Soil Nitrate ◽  
Snap Bean ◽  
Crimson Clover ◽  
Snap Beans ◽  
Soil Impedance

Rye plus crimson clover cover crops were followed by spring potato and fall snap bean or sorghum or fallow. The soil samples at 15 cm increments to 90 cm were evaluated for nitrate levels after each crop and cover crop. After the cover crops, soil nitrate levels were reduced relative to the fallow area. After the potato, crop soil nitrate levels increased above initial spring levels due a uniform fertilization due to the amount of N applied and short cycle of the crop. Snap beans and sorghum had increased plant stands and reduced soil impedance after fall cover crops. HOW nitrate levels varied with soil depth and time will be discussed.

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.

Effect of drip fertigation on nutrient uptake and seed yield of pigeonpea [Cajanus cajan (L.) Millsp.] under westeren agroclimatic zones of tamil nadu

2016 ◽  
Author(s):  
Vimalendran Loganathan ◽  
K. R. Latha
Keyword(s):  
Nutrient Uptake ◽  
Seed Yield ◽  
Tamil Nadu ◽  
Field Experiments ◽  
Water Soluble ◽  
Surface Irrigation ◽  
Agricultural College ◽  
Phosphorus And Potassium ◽  
Soluble Fertilizer ◽  
Nitrogen Phosphorus

Field experiments were conducted at Agricultural College and Research Institute, Coimbatore during August to February of 2011-12 and 2012-13 to study the effect of drip irrigation, fertigation levels and frequencies on seed yield and nutrient uptake of pigeonpea. Three fertilizer levels (75 %, 100 % and 125 % recommended dose fertilizer (RDF) through water soluble fertilizer and conventional fertilizers), three irrigation levels (50 % computed water requirement of crop (WRc), 75 % WRc and 100 % WRc) and surface irrigation (IW/CPE ratio 0.6 with 100 per cent RDF through conventional fertilizer) were included as treatments in this study. Application of 100 per cent of RDF (WSF) once in 7 days along with 100 % WRc (T9) recorded significantly higher uptake of total nitrogen, phosphorus and potassium. The lowest plant nutrient uptake was recorded by surface irrigation with application of 100 % RDF (T14) applied as basal. The results revealed that application of nutrients through fertigation once in seven days with 125 % RDF (WSF) + irrigation 100 % WRc recorded higher total nutrient uptake (nitrogen, phosphorus and potassium) than surface irrigation with conventional fertilizer.

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 SUMMER AND WINTER COVER CROPS IN A VEGETABLE ROTATION SYSTEM

HortScience ◽  
1996 ◽  
Vol 31 (5) ◽  
pp. 749a-749
Author(s):  
D.C. Sanders ◽  
J.C. Gilsanz ◽  
W.J. Snerry ◽  
G.D. Hoyt
Keyword(s):  
Cover Crops ◽  
Sandy Loam ◽  
Growth And Yield ◽  
Crimson Clover ◽  
Snap Beans ◽  
Rotation System ◽  
Winter Cover ◽  
Winter Cover Crops ◽  
Vegetable Rotation ◽  
Potato Yields

A 3-year study of cover crops (rye + crimson clover or sudex) and vegetable rotation systems was conducted using a Norfolk sandy loam soil. Cash crops were planted on all plots each spring, and in the fall, crops were snap beans/squash, sudex, or fallow. Late incorporation of cover crops depleted soil water content, resulting in a need for irrigation before spring plantings. Sudex residue had a high C: N ratio, delaying the total mineralization of N. Potato yields were not affected by rotation treatments. Cover crops improved snap bean emergence and yield. Snap beans had a differential uptake of Fe, Al, and B with cover crops. Tomato growth and yield were reduced with winter cover crops. Fall squash yield was not influenced by rotations.

scholarly journals Sustainable Management of Olive Orchard Nutrition: A Review

Agriculture ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 11 ◽  
Author(s):  
Isaac Zipori ◽  
Ran Erel ◽  
Uri Yermiyahu ◽  
Alon Ben-Gal ◽  
Arnon Dag
Keyword(s):  
Cover Crops ◽  
Oil Quality ◽  
Nutrient Deficiency ◽  
Production Costs ◽  
Plant Responses ◽  
Mineral Fertilization ◽  
Olive Orchard ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Olive Mill

Intensification of olive orchard management entails increased use of fertilizers, especially nitrogen, phosphorus, and potassium. In this review, plant responses to nutritional aspects, as well as environmental considerations, are discussed. Nutrient deficiency impairs production, whereas over-fertilization may reduce yields and oil quality, and increase environmental hazards and production costs. The effect of irrigation on nutrient availability and uptake is very significant. Application of organic matter (e.g., manure, compost) and cover crops can serve as substitutes for mineral fertilization with additional benefits to soil properties. Recycling of the pruned orchard material, olive pomace and olive mill wastewater, as well as the use of recycled wastewater for irrigation, are all potentially beneficial to olive orchard sustainability, but present the risk of environmental pollution. Some considerations regarding optimization of olive orchard nutrition are discussed.

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