A Petiole Sap Nitrate Test for Cauliflower

Efficiency Ranges for Nitrate-Nitrogen and Potassium for Vegetable Petiole Sap Quick Tests

Petiole sap N and K quick tests offer fast and accurate in-field analysis for N and K and have been calibrated for some vegetable crops in Florida. This paper summarizes 10 years of research conducted in Florida on petiole sap testing for N and K. Petiole sap nitrate-N and K concentrations correlated highly with wholeleaf N and K concentrations and decreased through the season for all vegetable...

Using Nitrate-N Petiole Sap-Testing for Better Nitrogen Management in Vegetable Crops

Vegetables have a relatively high nitrogen requirement and at times growers apply too much fertilizer-N that contributes to ground and surface water pollution. Fertilization can be made more efficient by plant analysis. Plant tissue (petiole) nitrate testing is a way of monitoring the nitrogen condition of the crop during the growing season. This is an especially useful method as the petiole is...

A Plate Test for Nitrate Reduction.

تأثیر مقادیر مختلف نیتروژن بر رشد و بررسی رابطه نیترات دمبرگ و شاخص کلروفیل با نیترات هیپوکتیل تربچه

The aim of this study was measuring nitrate and leaf chlorophyll content in aerial parts of plant, from which we can predict the hypocotyl nitrate content of radish. A factorial experiment in a completely randomized design with five replicates was carried out on two varieties of radish (Cherry Belle and Sparker). Plants were grown in perlite containing pots and were treated with five levels of ...

Accelerating Sap: Innovation in Test Automation

Enterprises fight a constant battle against backlog: competitive and market pressures drive deadlines to deliver more functionality in more locations for more products and services. While a crucial advantage of the SAP architecture is that configuration changes can be made easily to expose or modify capabilities quickly, how do you best avoid unintended consequences when it comes to changes in ...