56 mm in diameter) were considered as secondary nutrient
foramina (SF) while those equal or larger than 0.
The data pertaining to secondary nutrient
status of guava (Table 3) revealed that the leaf Ca content did not show any significant difference among the treatments.
Although sulphuris waste product for the hydrocarbonindustry, sulphur is an essential buildingblock to producing fertilizer and is initself a secondary nutrient
needed forplant growth.
Although sulphur is waste product for the hydrocarbon industry, sulphur is an essential building block to producing fertilizer and is in itself a secondary nutrient
needed for plant growth.
There is no established deficiencies of secondary nutrient
except sulphur that is suspected to be low in some areas.
Grade may also identify a secondary nutrient
as a fourth number in the traditional NPK.
TETRA Micronutrients also manufactures and markets a complete line of calcium-based secondary nutrient
products, as well as manganous oxide.
Status of secondary nutrients
vis-a-vis soil site-characteristics of vegetable growing soils of Varanasi.
Macronutrients which are required in large quantity for plant growth include nitrogen (N), phosphorous (P), potassium (K), calcium (Ca), magnesium (Mg) and sulphur (S), in which N, P and K are major or primary nutrients, whereas, Ca, Mg and S are secondary nutrients
These are required in relatively large quantities than secondary nutrients
for crop growth.
Dehydrated bee pollen contains high levels of proteins, amino acids, lipids and secondary nutrients
such as vitamins, which makes it a desirable food source for L.
Providing plants the right amount of the primary nutrients--nitrogen, phosphorus, and potassium--as well as secondary nutrients
, such as sulphur, and micro nutrients such as zinc, at the right time becomes more critical and a bigger challenge.