TY  - BOOK
AU  - Asha K Raj
AU  - Geethakumari V L (Guide)
TI  - Organic Nutrition In Okra
U1  - 630 
PY  - 1999///
CY  - Vellayani 
PB  - Department of Agronomy, College of Agriculture 
N2  - A fi e I d ex per i men t was con d u c t e d at the De par t men t 0 f 
Agronomy, College of Agriculture, Vellayani to find out the effect 
of dual application of phosphate sources and microbial inoculants on 
the quality of compost and to standardize an organic nutrient 
schedule for bhindi. Two su c c e s s i v e experiments; (I) 
standardisation of agro-techniques for enriching compost and (2) 
organic nutrient scheduling in okra were conducted to achieve the 
ob j e c t i v e s en vis age d . I nth e fi r s t ex per i men tor din a r y co III P 0 s t 
(uninoculated a i.d unamended co mp o s t ) was compared with various 
enriched composts prepared u s r n g phosphate sources such as 
rockphosphate or bonemeal at var io us levels (5%, 10%, 20%) and 
microbial inoculants (Azotobacter and Phosphobacter). The 
experiment was laid out in randomised block design with n m e 
treatments and three replications. 
In the second experiment an o r g aru c nutrient schedule was 
standardised for bhindi, variety Arka anamika by comparing the 
e ff e c t s 0 f fi v e 0 r g ani c nit r 0 g ens 0 u r c e s [ F Y M a Ion e (S I ), F Y M + 
poultry manure (S2),' FYM + neemcake (S)), FYM + greenleaf (S4), 
and FYM + enriched compost (Ss)], three nitrogen levels [50 kg ha-I 
(Nd, 100 kg ha-I (N2) and' 150 kg ha-I (N))] and microbial 
inoculation (control and Azospirillum) on growth, yield and quality 
of bhindi. POP recommendation of Kerala Agricultural University 
(12t FYM + 50:e:25 kg NPK ha-I) was the absolute control used in 
the study. The experiment was laid out in 5x3x2+1 factorial 
randomised block design with three replications. 
 
The results of the investigation are summarised below. 
Addition of phosphate sources and microbial inoculants 
reduced the decomposition period and improved the manurial value 
of enriched composts as compared to the ordinary compost. Lowest 
C:N ratio and ripening period and highest N, P and K content was 
recorded by the compost enriched with 20 percent bonemeal and 
microbial inoculants. Compost treated with 20 percent 
rockphosphate and bonemeal was comparable with bone meal with 
respect to C:N ratio, ripening period and P content. Ordinary 
compost was the most inferior treatment in the study. 
	Among nitrogen 	sources, 	all 	organic 	nitrogen 	sources 
(neemcake, green leaf, poultry manure and enriched compost) except 
FYM (Sd were superior to POP recommendation. FYM + neemcake 
(S3) recorded the maximum germination percentage and number of 
fruits plane I , where as plant height, LAI, fruit weight and fruit 
length were highest for FYM + green leaf (S4), which also took the' 
minimum days for 50 percent flowering. All the growth and yield 
parameters were highest at N3 level of nitrogen and with 
Azospirillum inoculation. 
FYM + neemcake recorded the maximum yield (158 q h a") and 
was on par with FYM + green leaf. Yield was maximum at N3 level 
and with Azospirillum inoculation. 
Crude protein content and ascorbic acid content were maximum 
for FYM + poultry manure and FYM + enriched compost 
respectively. FYM + enriched compost and FYM + neem cake 
re cor d e d co m par a b I e and low est c r u d e fi b r e con ten tan d h i g h est 
keeping quality of fruits. Various quality attributes were better 
under N3 level of nitrogen and Azospirillum inoculation. 
 
Nand P uptake were highest for FYM + neem cake where as K 
uptake was maximum for FYM + poultry manure, at N) level of 
nitrogen and with Azospirillum inoculation. The available N, P and 
K status of the soil were highest in FYM + neemcake, FYM + 
enriched compost and FYM alone treated plots respectively, at N3 
level of nitrogen and Azospirillum inoculation. 
FYM + neem cake recorded the rn a x i mum profit and was 
comparable with FYM + green leaf and FYM + poultry manure. B:C 
ratio was highest in FY M + nee m cake. P rofi t was max I mu m at N 3 
level of nitrogen and Azospirillum inoculation. 
In the case of interactions S3N3A (FYM + neem cake at N3 
level and with Azospirillum) recorded the highest fruit yield and 
profit ha-I and was comparable with S4N3A (FYM + green leaf at N3 
level with Azospirillum) and S2N3A (FYM + poultry manure at N3 
level and Azospirillum) 
The present study revealed that the substitution of chemical 
fertilizers with organic manures such as neem cake, green leaf, 
poultry manure and enriched compost was beneficial for increasing 
the yield and improving the quality of bhindi. 


UR  - http://krishikosh.egranth.ac.in/handle/1/5810103624
ER  -