Economic assessment of the use of microbial inoculants in black pepper (Piper nigrum L.) in Idukki district

Abstract

The research entitled ‘Economic assessment of the use of microbial inoculants in black pepper (Piper nigrum L.) in Idukki district. The objectives of the study were to quantify the extent of use of microbial inoculants (MI) used in black pepper, assess the economics of microbial inoculants (MI) application and identify the constraints of microbial inoculants adoption in pepper cultivation. At the first stage two blocks namely Kattappana and Nedumkandam were selected purposively and Irattayar and Nedumkandam panchayat were selected respectively from the 2 development blocks. The required information was collected from 30 MI using farmers and 30 non-MI farmers of black pepper by simple random sampling from the two panchayats. Thus the total sample size was 60. Percentage analysis was done to analyze socio economic variables and extent of adoption of MI. Cost ABC concept was used to calculate the cost of cultivation of MI using farmers and non-MI farmers separately. Resource use efficiency was calculated using Cobb Douglas production function and constraints were ranked by Garret’s ranking technique. Black pepper occupied about 45 per cent of cropped area and 30 per cent area occupied by cardamom. Plantation crops like cocoa, coffee, spices like nutmeg clove, vanilla and annuals like banana and vegetables were also cultivated in this area. Major varieties of black pepper cultivated were Panniyur I, Panniyur 4, local varieties like Karimunda, Neelamundi, Vellamundi, Kottanadan, Kuthiravaly, Kalluvallyand major standards for trailing pepper were Murukku, Silver Oak and Kilinjil. Average size of land holding was 1.85 ha for MI using farmers and 2.10 ha for non-MI farmers. Seventy three per cent of MI using farmers and 56 per cent of non-MI farmers had holdings ranging from 0.4-1.2 ha under pepper. Forty percent of high income farmers were following non-MI pepper farming. Analysis of extent of use of microbial inoculants revealed that only 33 per cent were following the recommended rate of MI whereas 46.6 per cent of farmers used in excess.Total cost of cultivation of black pepper per hectare was more for non-MI farmers when compared to MI using farmers. Cost A1 of MI adopted farmers was Rs. 133797.24 ha-1 and that for non-MI was Rs. 155720.64 ha-1. Cost C was calculated as Rs. 295050.13 ha-1 and Rs. 439399.87 ha-1 for MI using famers and non-MI respectively. Major share of cost A1 was contributed by cost of hired labourfor both categories followed by cost of manures, fertilizers and soil ameliorants. Yield of black pepper did not show much difference, but the farmers using MI were mostly following organic farming, fetches a higher price of Rs.700 per kg against the price ofRs.680 per kg for the non-MI famers. Net returns at cost C for MI using farmers was Rs. 135749.75 which was higher than that of non-MI farmers. BC ratios were 1.8 and 1.23 for MI adopters and non-MI farmers respectively at cost C. The Cobb Douglas production function analysis showed that number of bearing pepper vines had a positive and significant impact on yield in both the cases. In case of MI using farmers along with number of bearing vines, quantity of manures had positive and significant impact on yield. Quantity of MI showed positive coefficient but was non-significant. For the non-MI pepper farmers, number of hired labour and quantity of manures showed positive and significant impact in addition to number of bearing pepper vines. Difficulty in proper identification of pests and diseases in the study area, less availability of microbial inoculants other than Pseudomonas and Trichoderma, Lack of knowledge about recommended method, dose and time of application of MI and climate change were the major constraints observed. Present research revealed that by using MI, farmers could reduce the use of chemical fertilisers and pesticides; thereby they could reduce the cost of cultivation and increase profitability. Excess adoption of MI was prominent among the users and proper guidance is required to the farmers on the application of recommended dose of microbial inoculants along with adequate availability of all microbial inoculants.