Janith Piumal

Janith Piumal

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Growth control of horticultural crops

Methods of growth control of horticultural crops. Physical method Chemical method Biological method Physical methods Pruning Shoot tip and some other branches are removed allow room for new growth, healthier plants. it increases the productivity and make plants more manageable.…

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Organic farming

Organic farming is an agricultural system that provide fresh, tasty, authentic foods while respecting the natural life cycle systems. Codex Alimentarius guidelines. (food law) Organic farming is regulated internationally by Codex Alimentarius Guidelines This guidelines are established by The united…

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Soil water

some important terminologies with related soil water. Saturation capacity – Soil is at its maximum retain capacity. Field capacity – A measure of the maximum amount of the water that soil can hold. Permanent wilting point – The minimum soil…

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Chemical properties of soil.

Main considering chemical properties of soil are given below. Cation exchange capacity (CEC) pH Salinity C:N ratio (Carbon to Nitrogen) Soil colloids – Finest clay and SOM (Soli Organic Matters) particles. The location for most physical and chemical activity. Soil…

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Cultivation of Orchids

Categories Terrestrial – Bamboo Orchid Epiphytic Lithophytic Subterranean Horticultural classification Phalaenopsis type – Petals are broad and overlap on each other Cane type – Petals are thin and sometimes twisted Intermediate type – intermediate in size and shape between Phalaenopsis…

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Soil

Soil definition: Naturally weathered part of the earth, including organic matters affect on plant growth and plant performances. Soil genesis Soil is generated from the mother rocks and further developed from the natural and anthropogenic activities. Five major factors influencing…

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Hydroponics

Hydroponics is a technique used for growing plants in nutrient solutions with or without an artificial medium A major problems in growing crops in soil Presence of disease causing organisms Unsuitable soil reactions Compaction of soil Poor drainage Soil erosion…