Question

a. wilt 3. Which of these nutrients is compost rich in? a. organic nutrients b. nitrogen c. phosphorus d. potassium 4. Which of these is not a fungal disease of plants? b. rust c. smut d. blight (of potatoes) 5. Which one of the following is not true about ploughing? a. It loosens the soil. b. It aerates the soil. c. It prevents soil erosion. d. It allows easy penetration of roots into the soil. 6. Compost lacks which of the following nutrients? a. nitrogen b. phosphorous c. potassium d. all of these . 7. Which one of the following does not add nutrients to the soil? a. crop rotation b. field fallow c. manures d. ploughing 3. Which of the following machines can be used to harvest a crop and also to beat out the grain from the chaff? a. harvester b. combine c. thresher d. harrow​

Answer 1

Answer:

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