Agricultural Sciences

An introduction to drip irrigation systems by Ajai Singh

By Ajai Singh

Drip Irrigation process is now a longtime approach to irrigation in water scarce components however it is additionally gaining value in water ample parts. during this know-how, the cropped box is irrigated within the shut region of root quarter of crop. It reduces water loss taking place via evaporation, conveyance and distribution. as a result excessive water use potency could be completed.

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Require relatively little nutrition until flowering and nutrient uptake accelerates and reaches to peak during fruit set and early fruit bulking. Fertilization recommendations, based on research conducted regionally, vary among areas of the country. It is important to recognize these regional differences. Most of the Agricultural Universities in India have their own Regional Research Station or Krishi Vigyan Kendra. The relevant research findings of these research stations must be utilized while formulating fertigation programs Further, using a standard drip fertigation program without soil testing will often lead to wasteful fertilizer application or may results in a nutrient deficiency.

Vegetable crops differ widely in their macronutrient requirements and in the pattern of uptake over the growing season. In general, N, P, and K uptake follow the same course as the rate of crop biomass accumulation. Fruiting crops such as tomato, capsicum, and melon etc. require relatively little nutrition until flowering and nutrient uptake accelerates and reaches to peak during fruit set and early fruit bulking. Fertilization recommendations, based on research conducted regionally, vary among areas of the country.

2). Most manufacturers recommend 100 to 200 mesh screens for drip irrigation system. Normally, the discharge through the screens is less than 135 lps per square meter of screen openings. A standard 200 mesh stainless steel screen has only 58% open area and equivalent nylon mesh with same size opening has only 24% open area. In screen filter, the mesh size and the total open area determine the efficiency and operational limits. 2: Specifications of filter screens. Mesh No. 40 50 80 100 120 155 200 Hole size, micron Wire thickness, micron 420 300 177 149 125 100 74 250 188 119 102 86 66 53 Therefore, it is important to consider the percentage of open area when sizing a filter for a given system discharge.

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