Shree gowardhan.T

Genetically modified (GM) crops are plants whose DNA has been altered using biotechnology to introduce specific traits, such as insect resistance or herbicide tolerance. Impact on Human Health * Nutritional Enhancement: GM crops like Golden Rice are engineered with beta-carotene (provitamin A) to help reduce malnutrition and vitamin deficiencies in developing regions. * Pesticide and Toxin Reduction: Crops like Bt crops (such as Bt cotton and Bt corn) produce internal proteins toxic to specific pests, which lowers the need for heavy external chemical sprays. * Allergenicity and Toxicity Concerns: Critics and health reviews note theoretical risks, such as the transfer of potential allergens or unintended metabolic changes, though long-term studies generally show standard GM foods are nutritionally equivalent to non-GM foods. * Food Safety Record: According to global health organizations like the World Health Organization, commercialized GM foods currently available on the market have not shown evidence of direct human poisoning, though independent long-term monitoring is still debated by committees like the PRS Legislative Research on GM Crops. Impact on the Environment * Chemical and Pesticide Use: Insect-resistant and herbicide-tolerant traits have decreased overall chemical pesticide applications and reduced chemical runoff into local water bodies in many regions. * Soil Health and Tillage: Herbicide-tolerant traits allow farmers to use no-till or reduced-tillage farming practices, which helps minimize soil erosion and tractor fuel use. * Pest and Weed Resistance: Over-reliance on specific herbicides (like Roundup) or Bt toxins can lead to the evolution of "superweeds" and resistant pest populations, requiring new or stronger management tactics. * Biodiversity and Gene Flow: Engineered genes can occasionally cross-pollinate with wild relatives or conventional crops, raising concerns about shifts in local plant diversity and the protection of non-target insect species. * The pollen contamination of GMs crops with normal crops leads to loss of genetic diversity and disturb the genetic flow in environment

Drip irrigation system: Drip irrigation system delivers water to the crop using a network of mainlines, sub-mains and lateral lines with emission points spaced along their lengths. Each dripper/emitter, orifice supplies a measured, precisely controlled uniform application of water directly into the root zone of the plant. Water enter the soil from the emitters, moving into the root zone of the plants through the combined forces of gravity and capillary. In this way, the plant’s withdrawal of moisture and nutrients are replenished almost immediately, ensuring that the plant never suffers from water stress, thus enhancing quality, its ability to achieve optimum growth and high yield. Major Components of Drip Irrigation System *Pump station takes water from the source and provides the right pressure for delivery into the pipe system. *Control valves control the discharge and pressure in the entire system. *Filtration system cleans the water. Common types of filter include screen filters and graded sand filters which remove fine material suspended in the water. *Mainlines, submains and laterals supply water from the control head into the fields. They are usually made from PVC or polyethylene hose and should be buried below ground because they easily degrade when exposed to direct solar radiation. Lateral pipes are usually 13-32 mm diameter. *Emitters or drippers are devices used to control the discharge of water from the lateral to the plants. They are usually spaced more than 1 metre apart with one or more emitters used for a single plant such as a tree. For row crops more closely spaced emitters may be used to wet a strip of soil. Many different emitter designs have been produced in recent years. The basis of design is to produce an emitter which will provide a specified constant discharge which does not vary much with pressure changes, and does not block easily. SUBSIDIES FOR DRIP IRRIGATION: *Farmers in India can receive a 55% to 100% subsidy for installing drip irrigation systems through central schemes like the Pradhan Mantri Krishi Sinchayee Yojana Per Drop More Crop) combined with state-level top-ups. *Small & Marginal Farmers: Receive up to 55% financial assistance under central norms, which can scale up to 100% with state horticulture or convergence schemes (such as in Tamil Nadu for specific categories/crops). The most important techniques in Drip irrigation is fertigation. This is the process of applying fertilisers through the irrigation system.

Protected cultivation is an agricultural method where crops are grown inside controlled or partially controlled microclimates using structures like poly houses, net houses, and tunnels to shield them from adverse weather, pests, and diseases. The common structures used in protected cultivation are: *Poly houses: Covered with UV-stabilized polyethylene films to trap heat and regulate temperature. *Shade Net Houses: Simple frames draped with UV shade nets (25% to 75% shade) to lower light intensity and temperature. *Low and Walk-in Tunnels: Temporary or semi-permanent hoop structures used for early-stage crop protection and off-season nurseries. *Glass Greenhouses: High-precision, durable structures for active climate control and commercial export-grade production. *Mist chamber : It is an enclosed, humid structure that uses high-pressure nozzles to spray fine water droplets, helping plant cuttings grow roots. STATUS OF PROTECTED CULTIVATION: Greenhouse crop production is now a growing reality throughout the world with an estimated 405,000 ha of greenhouses spread over all the continents. There are more than 55 countries now in the world where cultivation of crops is undertaken on a commercial scale under cover, and it is continuously growing at a fast rate internationally. It has more useful in horticulture crops like Capsicum, Cucumber, Rose, Gerbera , Carnation, Strawberry and high value crops. Central and State scheme for Protected cultivation: (Major Central Government) *Schemes Mission for Integrated Development of Horticulture (MIDH) / National Horticulture Mission (NHM): Covers 40% to 50% of the construction cost for general farmers (and up to 55–60% for small, marginal, or women farmers) for structures like polyhouses, shade nets, and plastic tunnels. Typically limited to a maximum of 4,000 square meters per beneficiary *National Horticulture Board (NHB) Scheme: Focuses on commercial horticulture projects under protected cover for larger setups (generally above 2,500 square meters). It provides credit-linked back-ended subsidies for infrastructure, planting materials, and irrigation systems. *Agriculture Infrastructure Fund (AIF): Provides interest subvention of 3% per year on loans up to ₹2 crore for agricultural infrastructure projects, which can be combined with NHB or NHM subsidies. (State government schemes): *State Horticulture Missions: Individual states (such as Maharashtra, Tamil Nadu, Karnataka, and Rajasthan) offer supplementary state-level subsidies that can further reduce the initial capital burden. *NABARD: Facilitates credit-linked backing by helping farmers secure bank loans aligned with central and state subsidy schemes.

What is a Biofertilizers: Biofertilizers are the preparations containing beneficial microorganisms this is when applied to seeds, plants, or soil, improve plant growth and soil fertility by increasing the availability of essential nutrients to plants. They help plants get nutrients naturally by: *Fixing atmospheric nitrogen *Solubilizing and mineralizing phosphorus and other essential nutrients *Decomposing organic matter. There are different types of biofertilizers available in the market. *Rhizobium – fixes nitrogen in legume crops *Azotobacter – fixes atmospheric nitrogen *Azospirillum – promotes plant growth and nitrogen fixation *Phosphate-solubilizing bacteria (PSB) – make phosphorus available to plants The current scenario of biofertilizers: In today's world due to increasing in awareness of people about increasing of residual effects of chemical fertilizers in soil and foods. So many farmers are changing over to Organic farming. The global biofertilizers market is expanding rapidly, projected to reach billions of dollars as agriculture shifts toward sustainable and eco-friendly practices. *Market Size: The global biofertilizer market is valued at over USD 3 billion and continues to grow at a compound annual growth rate (CAGR) of roughly 10% to 12%. *Drivers: Rising chemical fertilizer costs, severe soil degradation, and strict government policies favoring organic farming fuel this growth. *Regional Shifts: Asia-Pacific shows the fastest regional growth due to rising populations and heavy government backing for sustainable farming, while North America maintains a major market share. *Advanced Formulations: Modern production moves beyond basic carrier materials to liquid formulations, microencapsulation, nano- mobilization, and biofilm-based bio inoculants for better shelf life and field efficacy. This the one of major achievement in the field of organic farming.