Effect of organic and inorganic source of nutrient with irrigation scheduling on growth performance of Jatropha curcas ( L . ) cuttings

An experiment entitled "Effect of organic and inorganic source of nutrient with irrigation scheduling on growth performance of Jatropha curcas (L.) cuttings" was carried out during Feb 2007 at forestry nursery at Rajendra Agricultural University, Pusa, Samastipur, Bihar to find out best nutrient resource for Jatropha cutting at nursery stage. The experiment was laid out on nine nursery bed replicated thrice with one CPTs RAU-P-Jat-1 and Nine treatment viz. T1-Control, T2DAP(200gm)+MOP(100gm), T3-SSP(200gm)+MOP(100gm), T4-Vermiwash (10lit/plot), T5Vermicompost(10kg/plot), T6FYM (10Kg/plot), T7-FYM (5Kg)+Vermiwash (5lit)/plot), T8-FYM (5Kg)+Vermicompost(5Kg)/plot, T9-Vermicompost (5Kg)+Vermiwash(5lit)/plot, Viz (l1)-3days, (l2)-Weekly interval and l3-Fortnightly interval. The soil of experimental plot was low in NPK content. Available Nitrogen -225 (kg/ha), available P2O5-15(Kg/ha), Available K2O-120(Kg/ha). The data of plant height, branch length and collar diameter and volume index were taken. The mean value of the parameter reveals that maximum plant height, branch length, collar diameter and volume index were obtained in case of T2 followed by T4, T9, T7, T5,T3, T8, T6 and T1.


INTRODUCTION
Jatropha curcas L. (Euphorbiaceae) is native of mixico but now a days huge cultivation started for Biomass production in Asia and Africa.It is introduced in India especially for Bio-fueled production.As it come well on degraded land, gives two harvest of seed in year, once planted gives economic yield near about 20 years which ultimately decrease the cost of cultivation year after year.So it need initial care at nursery stage.As we are growing his crop for economic purpose so it is very nursery to improve its biomass by applying some organic and inorganic source of fertilizers, which is easily available or can be prepared by local farmer, ultimately it improves the soil health, economic yields as well as economy of the farmer.The use of Judicious combination of organic and inorganic fertilizers sources is essential not only to maintain the soil health but also sustain productivity (Malewar Effect of organic and inorganic source of nutrient with irrigation scheduling on growth performance of Jatropha curcas (L.) cuttings et al., 1998).Organic manures not only increase the yield but also improve physical, chemical and biological properties of soil that improve fertility, productivity water holding capacity of soil (Blane et al., 1989).By considering the above point a trial was conducted at nursery stage of Jatropha cutting to study most efficient resource of organic and inorganic fertilizer on growth of the plant.Kato et al., (1991) reported that the addition of FYM had a beneficial effect on growth characters and development of tree species.

MATERIAL AND METHODS
The experiment was conducted on nine nursery bed replicate thrice with nine treatments viz, T 1 -Control, T 2 -DAP(200gm)+MOP(100gm), T 3 -SSP(200gm)+MOP(100gm), T 4 -Vermiwash (10lit/plot), T 5 -Vermicompost(10kg/plot), T 6 -FYM (10Kg/plot), T 7 -FYM (5Kg)+Vermiwash (5lit)/plot), T 8 -F Y M ( 5 K g ) + Ve r m i c o m p o s t ( 5 K g ) / p l o t , T 9 -Vermicompost (5Kg)+Vermiwash(5lit)/plot, with three irrigation scheduling Viz l 1 -3days, interval (l 2 )-Weekly interval and l 3 -Fortnightly interval, nursery bed size was 2.5×1.25m² with spacing 30×30cm, each treatment was applied on single nursery bed, mixed well at upper 20cm of soil after 5 days of mixing, Jatropha cutting (RAU-P-Jat-1) 2.5cm in length and 1.5-2 cm in thickness cutting were planted one third of cutting were buried and ¼ were left on top with wax coating on upper cutted end, all cutting were treated with 80/PPm of NAA with quick deep method.After planting all cutting were irrigated at once and there after irrigation interval 3 days gap weekly interval and fortnightly interval were maintained for each treatment.Volume index was calculated as per formula given by manavalan (1990).

V1=Diameter × height
Observation of plant height, collar diameter and branch length were recorded at 30,60 and 90 days interval and their mean value were arrange in the table 1, 2 and 3. Volume index were calculated after multiplying the diameter with plant height at different interval and data were arranged in the table 4 and their mean standard deviation and coefficient of variance were calculated.
However three days interval of irrigation was found more suitable which obtained maximum plant height, collar diameter, branch length and ultimately volume index of the plant.
In case of inorganic source of nutrient DAP-MOP combination gave better result than SSP+MOP, but in case of organic sources of nutrients vermiwash gave better result than any other sources and combination of source of nutrient.2004) reported that the C. equisetifolia seedling enhanced their growth and biomass production to vermiwash compared to those with the cowdung and water spray only.This was mainly attributed to the presence of growth promoting substances in the vermiliquids.Also recorded highest collar diameter (0.75cm) and total drymass (12.0gm) of teak seedlings by spraying of vermiwash.