FERTILIZER AND WATER MANAGEMENT

The following answers are micronutrient EXCEPT:

• Nitrogen

• Copper

• Iron

• Manganase

Nitrogen and phosphorus elements are _______.

• less quantity need by crops.

• micronutrient.

• macronutrient.

• supplied by air and water.

The symptom deficiency of nitrogen elements is that the _____ leaves turn pale to green to yellow.

• youngest

• oldest

• veins

• necrosis

The importance of phosphorus elements are _____, hastening maturity and promo es seed development.

• promotes flowering and fruiting development

• required for development of leaves

• major element of proteins

• promotes root growth.

The symptoms of deficiency of _____ elements are leaves appear reddish-purple, yields of fruit and flowers are poor, premature drop of fruits and flowers may often occur.

• nitrogen

• magnesium

• phosphorus

• potasium

The functions of liming to increase pH level and provide _____ element.

• nitrogen

• potassium

• calsium

• zink

What is the element deficiency on the diagram?

• Potassium

• Phosphorus

• Magnesium

• Sulfur

What is the symptom of necrosis?

• Yellowing due to breakdown of plant's.

• Plant disease where death of host tissue occurs due to viral  infection

• It results in appearance of yellow spots.

• Yellowish spots in green tissue give a mosaic pattern.

Difficiency of _____ elements can cause causes "whiptail" of cauliflower.

• iron

• boron

• molybdenum

• zink

What is the type of irrigation on the diagram?

• Fertigation

• Coommercial fertilizer

• Overhead

• Foliar