Nutrient Management for Lowland Rice: Key Check 5 Quiz

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Why do rice plants need fertilizers?

To increase the number of tillers and panicles

To decrease the amount of sunlight required for growth

To reduce the need for climate N-P-K inputs

To fill the gap between what the crop needs and what is currently present in the soil, water, and air (correct)

What is the importance of Key Check 5 nutrients from tillering to EPI and flowering?

To cause slow growth and pest damage

To achieve excessive panicle development and high grain weight

To reduce the number of tillers and panicles

To ensure good, uniform growth and attainment of yield potential (correct)

What indicates the achievement of Key Check 5 from tillering to EPI and flowering?

No symptoms of nutrient deficiency or toxicity and achieving a certain number of panicles per square meter (correct)

Showing symptoms of nutrient deficiency but achieving a certain number of panicles per square meter

Experiencing high levels of nutrient toxicity

Having fewer panicles per square meter

Which nutrient elements do rice plants need more of?

Nitrogen (N), phosphorus (P), potassium (K), zinc (Zn), and sulfur (S) Signup and view all the answers

What do nutrient inputs as fertilizers do for crops?

Fill the gap between what the crop needs and what is currently present in the soil, water, and air Signup and view all the answers

When do rice plants grow and respond better to fertilizer?

When there is more sunlight Signup and view all the answers

How can the number of panicles at dough stage be assessed?

Randomly select three sampling sites and count the panicles in each quadrat Signup and view all the answers

Which technology is used to determine the nutrients deficient in the soil and the fertilizer amount needed?

Minus-One Element Technique (MOET) Kit & MOET App Signup and view all the answers

What is the purpose of knowing and managing the nutrient requirements of the crop?

To achieve cost efficiency and target yield Signup and view all the answers

What should be known to increase efficiency in input cost and nutrient uptake?

The right element, amount, and timing of fertilizer application Signup and view all the answers

What does nitrogen (N) promote in rice plants?

Increase in grain protein content Signup and view all the answers

What are the deficiency symptoms of nitrogen (N)?

Stunted, yellowish plants Signup and view all the answers

Which tool is used to assess the nitrogen status of the rice crop using a colored 'ruler' for leaf color comparison?

Leaf Color Chart (LCC) and LCC Tools Signup and view all the answers

What is recommended to achieve Key Check 5 regarding nutrient deficiency diagnosis?

Visual observation of deficiency symptoms Signup and view all the answers

How can the right nutrient element, amount, and timing of fertilizer application be known?

By knowing and managing the nutrient requirements based on available information Signup and view all the answers

What should be known to manage the nutrient requirements based on available information?

The right element, amount, and timing of fertilizer application Signup and view all the answers

Nutrient Management for Lowland Rice: Key Check 5 Quiz

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