As we all know, agriculture today became a science which requires certain parameters to know before you saw. In this consent the farmers need to know the fertility and availability /Unavailability of nutrients in it so that they can choose the right crops for the right agri-lands also to take decision for the choice of right fertilizers. In Oshnic group we are providing the consultancy for the testing of it. All these consultancies are being provided through our group’s company Aviral Biotech & Fertilisers Private Limited .
It is a Chemical process by vertue of which requirement of neutrients for plant can be analysed so as to maintain the fertility. The test may refer to one or more of a wide variety of its analyses conducted for one of several possible reasons. Possibly the most widely conducted the tests are those done to estimate the plant-available concentrations of plant nutrients, in order to determine fertilizer recommendations in agriculture. Other tests may be done for engineering (geotechnical), geochemical or ecological investigations.
The testing in the laboratory requiresonly a few grams of the sample, yet the sample sent to the laboratory must be a true representative of the field in question. In a homogenous field, soil samples from plough layer (0-15cm) should be selected randomly in a zig-zag manner. One can get these from certain areas of Bhopal (MP). The samples should not be collected from near the bunds, water channels, field paths and heaps of crop straw, stubbles, manure, etc.
|Pastures, permanent grass||5-10|
2 - 5
1 - 2
0.5 - 1
|Orchards, vineyards, forests||0.5 - 2|
|Vegetable gardens, irrigated||0.5 - 1|
|Greenhouse, nursery, lawns||0.1 - .2|
At least one month before planting time.As a rule 'if soil is too wet to plow, it is too wet to sample'.Try collecting samples at the same time every year
Soils from coastal plains, sandy, light textured soils - sample once after every 2-3 crops Silty, clay loams and mountain - sample once every four cropping years.
|CROP / SOIL||SAMPLING DEPTH (CM)|
|Orchards||20 - 30|
|Lawns and Turf||10|
|Deep rooted crops / Problem||30/60|
|Zero tillage||15 - 20|
|Pastures and Forages||8 - 10|
After collection and analysis of soil samples, it is the responsibility of the analyst/scientist to interpret the results and properly give the fertilizer recommendations to farmers. Many people have an impression that it is a simple procedure to determine the plant nutrients that are deficient and recommend those nutrients in fertilizer form so that harvests are assured. Nevertheless, the testing is much more than determining nutrient availability.
Incorporation of generated data through intensive research and establishing a significant relationship between.
The Survey is one of the important tools to assess the nutrient requirement for a crop/cropping sequence. This helps to economize on cost of fertilizers and also in increasing fertilizers use efficiency. There are 514 soil-testing aboratories in India with a capacity of about 6.5 million samples per annum.In order to provide soil-testing facilities to all 106 million farms holding in a reasonable period of time, the existing analyzing capacity of the testing program needs to be augmented almost 15-20 times.
Madhya Pradesh is having presently 22 Soil Testing Labs and Surveyors. The main objective of Soil Health Centres is to maintain the soil health by analysing nutrient status of the them and to give suggestions on the quantities of major nutrients like nitrogen, phosphorus, potassium to be applied to the soils. Micro Nutrient analysis is also important to know the status of Manganese, Boron, Zinc, Iron etc., present in them and accordingly suggest supplimental application for better plant growth.
Steps required to strengthen soil-survey are improve the capacity utilization of existing soil-testing labs, adding facilities of micro-nutrients at selected labs, introducing tissue testing particularly for sugarcane, horticulture and plantation crops and encouraging private sector participation for adding new capacity. Based on the analysis of 4.84 million samples, the fertility status of them with regard to the content of available nitrogen, available phosphorus and available potassium have been worked out which indicate the following status on all India basis:-
The testing till today has been used mainly to formulate precise recommendations for the major nutrients i.e. nitrogen, phosphorus fertilization of crops in different soils and to recommend appropriate doses of amendments for salt-affected and acidic soils. Micronutrients, comprising zinc, copper, iron manganese, boron and chlorine, though required by plants in much smaller amounts, yet are as essential for them as the major nutrients. Despite that, little attention has been paid to employ the soil testing for assessing the micronutrient status of soils and determining requirement for micronutrient fertilizers for growing crops. With an objective to extend the advisory service to the farmers of the state regarding the nutrient problems of soils and crops and suggest appropriate remedial measures for efficient correction of the same, Jawahar Lal Nehru Agriculture University and the Department of Agriculture have established laboratories for nutrient. Farmers are advised to make the best use of this service rendered by these laboratories. The test can be performed for the soil of farmer by just paying Rs 50.
Success or failure of these programmes largely depends on rapidity of providing correct information to farmers, ability of the programme to provide service to a large group of farmers in a particular area, proper calibration and interpretation of results and recommendations that when followed are profitable for the farmer. Then only will this service be effectively utilized to improve local agricultural production Time and quality consciousness in the service is a real challenge for the analysts in the new millennium. This compels labs to adopt rapid, reliable, time saving procedures and methods to meet future requirements. The farmer's confidence in the programme can be established only by demonstrating that it actually provides a means of improving his profit.