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Effect of NPK and biofertilizers on potato production

KrishiKosh

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Title Effect of NPK and biofertilizers on potato production
 
Creator Kabal Singh
 
Contributor Baswana, K.S.
 
Subject Fertilizers, Biofertilizers, NPK fertilizers, Fungi, Potatoes, Yields, Planting, Harvesting, Nitrogen, Cultivation
 
Description The present investigation entitled “Effect of NPK and biofertilizers on potato production” was
carried out at Research Farm of the Department of Vegetable Science, CCS Haryana Agricultural
University, Hisar during winter season of 2012-13. The ten treatments viz., T1: 50% RD of NPK
fertilizers, T2: 100% RD of NPK fertilizers (150:50:100 NPK kg/ha), T3: 150% RD of NPK fertilizers, T4:
50% RD of NPK fertilizers + biofertilizers (Azotobacter + Phosphobacteria), T5: 100% RD of NPK
fertilizers + biofertilizers (Azotobacter + Phosphobacteria), T6: 150% RD of NPK fertilizers + biofertilizers
(Azotobacter + Phosphobacteria), T7: Without P (100% RD of NK fertilizers), T8: Without K (100% RD of
NP fertilizers), T9: Biofertilizers alone and T10: Absolute control (without NPK) were laid out in a
Randomized Block Design with four replications. Ten competitive plants were selected randomly from
each treatment to record data on various growth and yield parameters.
The results reveals that the treatment T6 (150% RD of NPK fertilizers + biofertilizers) was the
best among all the treatments for most of the growth and yield parameters under study and showed
highest plant height at all intervals, number of leaves and stems at 50 days after planting, stem and
leaves weight at harvest, leaf area index, foliage weight, weight of tubers in different grades (up to 25,
>50-75 and >75 g tuber weight), total (387.44 q/ha) and marketable tuber yield (366.92 q/ha),
maximum nutrients uptake, net return (Rs. 149164/ha) and B:C (3.10) ratio. It was closely followed by
T5 (100% RD of NPK fertilizers + biofertilizers) which produced total yield of 360.86 q/ha and produced
maximum weight of tubers of >25-50 g grade. There was no significant effect of the treatments on plant
emergence and tuber dry matter (%). Further, biofertilizers alone improved total tuber yield by 13.36%
over absolute control and thus, it can be concluded that the biofertilizers (Azotobacter,
Phosphobacteria) are the advantageous source for nutrients exhaustive crops like potato, when used in
combination with inorganic fertilizers or alone.
 
Date 2016-09-15T14:13:44Z
2016-09-15T14:13:44Z
2014
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/76882
 
Language en
 
Format application/pdf
 
Publisher CCSHAU