By Ajai Singh
Drip Irrigation method is now a longtime approach to irrigation in water scarce parts however it can also be gaining value in water considerable parts. during this know-how, the cropped box is irrigated within the shut neighborhood of root area of crop. It reduces water loss happening via evaporation, conveyance and distribution. hence excessive water use potency should be accomplished.
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Calcium and Mg carbonate and orthophosphate precipitations may occur in the lines and the drippers. In addition, high pH may reduce Zn, Fe and P availability to plants. 5. The pH of the irrigation water could be reduced or controlled by using P acid or acid based fertilizers like urea phosphate and monoammonium phosphate. The use of acid fertilizers in drip systems may be beneficial in many ways other than the direct benefit from the added P, such as increased solubility of soil native P minerals, increased 42 AN INTRODUCTION TO DRIP IRRIGATION SYSTEM availability of other nutrients and micronutrients and prevention of clogging of the fertigation system.
1976) found that P movement increases 5 to 10 folds when applied through drip system, indicating that fertigation of P is particularly important. Potassium (K): The ionic form of this element is K+. Potassium takes part in activating enzymes involved in photosynthesis and in the metabolism for creating proteins and carbohydrates. The carbohydrates are transported from leaves to the roots and anions from roots to the leaves. It also assists in utilizing the water use by regulating the stomata and decreasing evaporation from the stomata.
Screen Filter: Screen filters are fitted just after the pumping unit and no other filter is required if source of water is ground water. The casing is built of metal or plastic material. It has four apertures: water inlet, outlet, draining valve and cover. It consists of a screen made of metal, plastic, or synthetic cloth enclosed in a special house used to limit COMPONENTS OF DRIP IRRIGATION SYSTEMS Fig. 6: Centrifugal filter (Phocaides, 2000) 47 48 AN INTRODUCTION TO DRIP IRRIGATION SYSTEM maximum particle size.