Across
- 6. To check or hinder the growth or development of a plant
- 8. Yellowing or whitening of normally green leaves caused by lack of nutrients, air pollution or diseases
- 11. crops such as legumes or grasses that are grown to be plowed or spaded into the soil to increase humus content and improve soil structure
- 12. Zn; assist with photosynthetic function, helps metabolic enzymes, and effects cell development
- 15. B; an element essential for plant growth. Helps plant cells develop and assists with sugar translocation
- 16. Cl; a heavy gas used in small amounts for the growth of plants
- 17. Mn; an element that is often unavailable to plants
- 18. K; macronutrient involved with photosynthesis primarily with the transformation of sugars
- 19. When molecular nitrogen biologically or chemically converts to organic combinations or forms
- 20. Trace nutrients
- 26. N; macronutrient, vital to plant growing process, increases vegetative growth
- 27. Primary plant nutrients
- 28. produced by plants and animals with nothing "additional" added
- 29. A change in color of the lower leaves of green plants usually attributed to a lack of plant nutrients or moisture deficiency
- 30. Organic residues or their mixture placed in a pit, moistened and allowed to become decomposed
Down
- 1. P; this nutrient stimulates early growth and root development
- 2. an element or compound in a soil that is essential for the growth of a plant
- 3. another name for micronutrient
- 4. Essential to plant growth in smaller quantities or another name for micronutrient
- 5. Nitrogen, Phosphorus, and Potassium or another name for macronutrient
- 7. Excreta of animals used to fertilize land
- 9. Mg; essential for plant growth because it is a constituent of chlorophyll
- 10. Any organic or inorganic material added to soil or water to provide plant nutrients to increase growth
- 13. A family of plants that includes food and forages like peas, beans, peanuts, clovers, alfalfas and kudzu
- 14. An insufficiency in reference to the amount, volume, proportion
- 21. Death of plants
- 22. Fe; a deficiency in this element results in chlorosis
- 23. Cu; can reduce plant uptake of phosphorus, iron, zinc, and molybdenum. Assists with photosynthetic function and metabolic enzyme breakdown
- 24. S; element important for soil fertility and used in large amounts by plants
- 25. Ca; essential in plant and animal growth & is the principal mineral element in bones
- 27. Mo; essential in very small amounts, usually sufficient