During winter months when temperature in green house goes down below the optimal range of temperature required to produce quality blooms. Heat loss in green house is through conduction, infiltration and radiation. Metallic frame, polythene, sash bars, etc. are the sources of heat loss through conduction whereas leakages and holes are the sources of infiltration. In radiation warm objects emits [...]
This article throws light upon the three types of nutritional monitoring of green house crops. The types are: 1. Visual Diagnosis 2. Soil Testing 3. Foliar Analysis. Type # 1. Visual Diagnosis: By observing plants in terms of growth, foliage, colour, branching pattern, guess is done about deficiency or toxicity symptoms of particular nutrient. When these symptoms, develop, by that [...]
This article throws light upon the three ways for cooling of green house. The ways are: 1. Fan Pad Cooling System 2. Pad Size 3. Fog Cooling System. Way # 1. Fan Pad Cooling System: This system is available since 1954 and still today it is most ideal for summer cooling. In this system on one wall of green-house water [...]