RESPONSE OF OKRA [Abelmoschus esculentus (L.) Moench ] TO NPK FERTILIZATION AND IT’S EFFECT ON NUTRIENTS AVAILABILITY
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Date
2021-03
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled “Response of okra [Abelmoschus esculentus (L.)
Moench] to NPK fertilization and its effect on nutrient availability” was carried out at the
experimental farm of Department of Soil Science and Water Management, Dr. Y. S. Parmar
University of Horticulture and Forestry, Nauni, Solan , (HP) during the year 2019 with the
objective to study the effect of different NPK combinations on physico-chemical and
microbiological properties of soil, nutrient status, growth and yield parameters of okra cv. P-
8. Research trial comprised 8 treatments, viz. T1 - Control, T2 - N (100%), T3 – N (100%) +P
(100%), T4 – N (100%) +K (100%), T5 - NPK (100%), T6 - NPK (150%), T7 - NPK (100%) +
FYM (100%), T8 - NPK (150%) + FYM (100%). The treatments were replicated thrice in a
Randomized Block Design (RBD). The conjoint application of NPK with FYM improved
available NPK content, microbial count, growth and yield attributes of okra. Significantly
maximum microbial count (56.40×106 cfu, 4.43×104 cfu and 2.92 ×105 cfu g-1 soil,
respectively) and available soil N, P, K and S content (344.10, 86.99, 368.46 and 54.00 kg
ha-1, respectively) were recorded with the application of NPK 150% +FYM 100% (T8) but
were statistically at par with treatment T7 (NPK 100%+FYM 100%). Similarly, significantly
highest plant macronutrient and micronutrient content were recorded under treatment T8.
Further, growth and yield attributes were also found maximum under treatment T8 (NPK
150%+FYM (100%) leading to maximum yield (106.72 q ha-1) which was at par with
treatment T7 (NPK100%+FYM 100%) which recorded 105.59q ha-1yield. Therefore, the
application of NPK@100%+FYM @100% lead to improvement in soil nutrient status,
microbiological properties, yield and quality of okra.