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Download e-book for kindle: Agroforestry: systems and practices by Ramesh Umrani, C. K. Jain

By Ramesh Umrani, C. K. Jain

ISBN-10: 9380179170

ISBN-13: 9789380179179

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CEC protects soluble ions from leaching and loss from the plant root zone. These ions are rapidly exchangeable with other soluble ions, however, so when root uptake depletes the nutrient supply they replenish plantavailable cations in the soil solution. Figure 2. ; as well as NH4and micronutrient trace metals' like Zn2+, Mn2+, and Cu2+. ORGANIC MAITER Soil organic matter is a very important factor in soil fertility. It is a reservoir of plant nutrients, has a high CEC, buffers the soil against pH changes, and chelates micronutrients.

D) Supplementary income: One of the uniqueness of integrated farming system in general and agroforestry in particular is the promotion of traditional subsidiary occupation. This is due to the availability of raw materials for these activities. As a result farmers started many subsidiary ventures like basket making, mat weaving, bamboo crafts etc. These subsidiary occupations, naturally added to the total family income generated from the farmers. e) Farm expenditure: The expenditure incurred by the farmers on the farming has increased marginally, but not significantly.

1996. Integrating Agricultural Research, Education, and Extension in Developing Countries. 3 Nutrient Cycling in Agroforestry Systems There are at least 16 essential chemical elements for plant growth. Carbon (C), hydrogen (H), and oxygen (0), obtained from air and water, frequently are not included as 'nutrient' elements. Nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (5), iron (Fe), manganese (Mn), zinc (Zn), copper (Cu), boron (B), molybdenum (Mo), and chlorine (Cl) are obtained from the soil and required by all plants.

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Agroforestry: systems and practices by Ramesh Umrani, C. K. Jain


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