After completing this Lesson, you will be able to answer: 1.List the secondary plant nutrients? 2.List the plant micronutrients? 3.Why and where calcium.

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After completing this Lesson, you will be able to answer: 1.List the secondary plant nutrients? 2.List the plant micronutrients? 3.Why and where calcium and sulfur become deficient in pearl millet? 4.How do you identify the need for the application of these plant nutrients to pearl millet? Virtual Academy for the Semi Arid Tropics Lesson 3: Importance of Other Nutrients Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition

Virtual Academy for the Semi Arid Tropics Lesson 3: Importance of Other Nutrients Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition After completing this Lesson, you will be able to answer: 5.How do you decide whether to apply zinc or not? 6.What is the recommended method of application of zinc to pearl millet? 7.How iron deficiency can be rectified?

Virtual Academy for the Semi Arid Tropics Lesson 3: Importance of Other Nutrients Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition Plants need certain other nutrients in addition to the nutrients which were discussed in the Lesson 2. These nutrients are secondary nutrients and micronutrients. The secondary nutrients are Calcium, Magnesium, and Sulfur. The important micronutrients are Iron, Zinc, Boron, Molybdenum, Manganese, Copper, Chlorine and Cobalt.

Virtual Academy for the Semi Arid Tropics Lesson 3: Importance of Other Nutrients Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition These nutrients are equally essential for pearl millet plants for proper growth, development and disease resistance. Continued use of only common fertilizers, which do not supply these nutrients, is leading to their deficiencies resulting in reduced pearl millet yields.

Virtual Academy for the Semi Arid Tropics Lesson 3: Importance of Other Nutrients Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition Testing the soil will help in identifying the need for the application of these plant nutrients. Application of organic manures like well decomposed farm yard manure (FYM) and compost, green manuring and green-leaf manuring practices provide most of these plant nutrients.

Virtual Academy for the Semi Arid Tropics Lesson 3: Importance of Other Nutrients Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition Also, using choice fertilizer material containing one or more of these nutrients could help in supplying such nutrients. For example, applying super phosphate will not only supply phosphorus but also provides calcium and sulfur.

Virtual Academy for the Semi Arid Tropics Lesson 3: Importance of Other Nutrients Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition Calcium and sulphur deficiencies may occur in problem soils. In acid soils, calcium application may be required. Similarly sulfur deficiency may occur in alkaline soils. However, we come across very rarely the deficiency of these secondary nutrients in many pearl millet growing areas. Among the micronutrients, Zinc and Iron are the most commonly deficient in pearl millet growing areas.

Virtual Academy for the Semi Arid Tropics Lesson 3: Importance of Other Nutrients Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition Zinc deficiency can be corrected by applying Zinc sulfate to the soil before the final ploughing. Zinc application to soils last for several years. So, zinc need to be applied once in 3 to 5 years.

Virtual Academy for the Semi Arid Tropics Lesson 3: Importance of Other Nutrients Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition Soil application of ferrous sulfate at the final ploughing is recommended in soils low in available iron. Foliar application of % ferrous sulfate solution corrects iron deficiency if noticed in a standing crop. Soil applications of iron may be long-lasting than foliar application.

The Lesson 3 on the importance of other nutrients in pearl millet concludes. The last Lesson in this Module is about application of manures and fertilizers to pearl millet crop. Select Lesson 4 from Module V contents Virtual Academy for the Semi Arid Tropics Course on Pearl Millet Production Practices Module V: Pearl Millet Plant Nutrition