Study mixed forming proctices in the locality with respect to sequence of crops, advantages of it, types of varieties grown, benefits of cach crop to the former with respect to economics, yield quality and quantity. – Maharashtra State Board Class 12 Environmental Studies (EVS) project topic and guidance.
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Project 18 : Study mixed forming proctices in the locality with respect to sequence of crops, advantages of it, types of varieties grown, benefits of cach crop to the former with respect to economics, yield quality and quantity. is an officially approved project topic in the Maharashtra State Board Class 12 Environmental Studies and Water Security curriculum. This comprehensive study equips students with practical field methodologies, ecological analysis, and empirical data required for securing an 'A' grade in school/junior college internal assessments.
Environmental Education and Water Security emphasizes sustainable development through scientific investigation. The practical documentation provided below covers the core findings, observations, and policy measures needed for comprehensive academic evaluation.
Aim of the Study: To investigate traditional and scientific mixed cropping / multi-cropping practices in the locality, document crop sequences, evaluate symbiotic ecological advantages, and compute economic resilience.
Field visits to mixed cropping farms, mapping spatial crop layouts and planting ratios, recording crop sowing and harvesting calendars, and interviewing farmers on yield economics and soil fertility.
This scientific investigation conforms strictly to Maharashtra State Board practical guidelines, incorporating primary survey data, empirical observations, and practical field documentation.
The following empirical observation matrix demonstrates standard data collection parameters, field measurements, and recorded outcomes for this project study:
| Mixed Cropping Combination | Row Ratio / Spatial Layout | Symbiotic Ecological Advantage | Farmer Economic & Yield Benefit | Land Equivalent Ratio (LER) |
|---|---|---|---|---|
| Cotton + Pigeon Pea (Tur) | 6 rows Cotton : 1 row Tur | Tur fixes nitrogen; deep taproots break hardpan soil layers. | Tur harvest provides Rs. 18,000/acre surplus cash when cotton fluctuates. | LER = 1.35 (35% more productive) |
| Maize + Cowpea (Chawli) | 2 rows Maize : 2 rows Cowpea | Cowpea acts as dense living green mulch, suppressing weeds by 75%. | Maize grain for market; cowpea provides nutritious pulse and dairy fodder. | LER = 1.28 (28% yield advantage) |
| Bajra + Moong (Green Gram) | 3 rows Bajra : 1 row Moong | Moong matures in 60 days, releasing nitrogen before Bajra grains fill. | Early cash income from Moong; Bajra provides drought-proof cereal food. | LER = 1.22 (22% yield advantage) |
| Sugarcane + Onion / Garlic | Inter-row planting in young cane | Utilizes vacant space between cane rows during the first 90 slow growth days. | Onion harvest pays for all cane weeding and fertilizer input costs upfront! | LER = 1.42 (42% net profit surge) |
| Banana + Marigold Trap Crop | Marigold border and inter-rows | Marigold roots secrete nematicidal alpha-terthienyl, killing harmful root nematodes. | Eliminates chemical nematicides; marigold flowers sold at festive markets. | LER = 1.18 + Reduced chemical costs |
The field study and investigation of Project 18 focuses on the following key environmental observations and highlights:
A comprehensive analysis of Project 18 reveals crucial insights regarding agronomy & cropping systems and local ecological resilience. By examining empirical data collected in the field, students understand the direct impact of human activity on ecosystems and learn practical conservation strategies applicable to Maharashtra's local environment.
Monoculture is ecologically fragile and economically perilous. Mixed farming mimics natural forest ecosystems, creating built-in biological synergies, regenerating living soil fertility, and providing resilient financial insurance against extreme weather and market collapses.
To secure full marks (30/30) in your internal project evaluation, structure your handwritten project file in the following official order:
A mathematical ratio evaluating intercropping efficiency: LER = (Yield_Intercrop_A / Yield_Mono_A) + (Yield_Intercrop_B / Yield_Mono_B); an LER greater than 1.0 proves intercropping is more productive than monoculture.
Legume roots host symbiotic Rhizobium bacteria in nodules that convert inert atmospheric nitrogen (N2) into plant-absorbable ammonium.
A sacrificial plant grown alongside or around the main crop that is more attractive to pests, luring them away from the economically valuable crop.
Different plant species with diverse heights and leaf shapes fill all spatial canopy niches, shading the soil surface and starving weed seeds of sunlight.
It diversifies food production (cereals, pulses, vegetables, milk) and staggers harvest timings throughout the year, ensuring steady income and household food security.