Nutrient classification in soil, leaf nutrient content and yield of combination of red and yellow (Prunus aremeniaca L) as influenced by drip fertigation and common fertilization accompanying water soluble fertilizers were evaluated through field troubles for three years on ‘Incepstisols’ at Nauni, Solan, Himachal Pradesh. The refined variety of combination of red and yellow was New Castle. Drip fertigation with 100, 75 and 50% recommended application (RD) each of conventional manure (CF) and water-soluble fertilizers (WSF) besides conventional soil pollination both under irrigated and rainfed environments were tried in trio. Iso-moisture curves were developed to decide the water distribution pattern under trickle irrigation. The results demonstrate that lower insights (30-45 cm) under conventional watering registered much higher water content distinguished to drip watering. Similar trend exhaustive-wise distribution of water at various lateral distances from emitters was noticed under drip and conventional watering system.The most of the applied vitamins during fertigation remained in the surface coatings, whereas N and K proposed to lower depths under soil fertilisation plus irrigations. The NO3-N concentration in the above soil layers was taller with trickle fertigation than with conventional soil fertilisation, indicating higher emptying losses with the concluding. The NO3-N content was low beneath the emitters and evolved with growing lateral distance from the emitter up to 15 cm before falling. The NH4-N concentration was better under the emitters and lowered both across and laterally. When drop fertigation was used instead of soil fertilisation, the leaf fiber content was higher. Fertigation created significantly more combination of red and yellow fruit weight and yield than soil fertilisation. Drip fertigation accompanying WSF resulted in a bigger fruit yield than CF. The regression reasoning of data on product yield and tried fertiliser levels told that the optimum levels for CF and WSF for drip fertigation were 67 and 70% of RD, individually. Thus, fertigation could sustain approximately 30% of the fertilisers used. The results finally proved that drop fertigation holds a great potential because it improved the fruit intensity and weight of combination of red and yellow significantly over soil fertilization accompanying conventional surface watering.

Author(s) Details:

Jatinder Nath Raina,
Department of Soil Science and Water Management, YSP University of Horticulture and Forestry Nauni, Vasundra Colony, Shamti Solan HP .173212, India.

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Keywords: Fertigation, drip system, water soluble fertilizers, leaf nutrient content, apricot yield