89 Days After DRONE Direct Seeding| Soft Dough to Hard Dough Stage

#DRONE DIRECT SEEDING #LGU & #DA PROJECT DA #RFO-02 Mallig, Isabela Monitoring by: Sir Elmer Mabuti 89 DAS #Jackpot 102 Hybrid Leads Agri Field Specialist: Sir Edwin DC Balajadia Inputs: inorganic Fert & Foliar Soil Spray: ✓ Rice Straw incorporate in soil ✓ Organic Process Manure (DA) ✓ #CFA Compost Fungus Activator (DA) ✓ 10 Bags Inorganic Fert. Per Hectare (T14, 16-20-0, Sulfate 21-0-0/24S , MOP 0-0-60,) DA ✓ Foliar T14 with Zinc, Mga (DA) ✓ MagiK Gro (Leads Agri) ✓ CERES Bio-stimulant (Leads Agri) ✓ DIY Natural All Purpose Foliar Fert. ✓✓✓ Yes, you are exactly right. Spraying agrochemicals at the wrong time—especially during the highly sensitive reproductive and ripening stages—causes severe chemical phytotoxicity in hybrid rice, resulting in drastic yield losses. 1. Flowering to Heading Stage: Sterility & Dirty Panicle The flowering and heading stages are the most sensitive periods in a rice plant's life cycle. Spikelet Sterility (Empty Grains): Rice flowers typically open for only a few hours midday to self-pollinate. Spraying insecticides, fungicides, or foliar fertilizers during this precise time physically disrupts pollination. The chemical spray can wash away pollen grains, cause the pollen grains to burst, or induce chemical shock in the delicate reproductive organs. This prevents fertilization, leading to high spikelet sterility (empty, chaffy grains or "white heads"). Blackening & Dirty Panicle: Certain chemicals, particularly copper-based fungicides or heavy chemical tank-mixes, cause direct chemical burns to the newly emerged, soft glumes (grain hulls). This chemical injury results in oxidation, causing the panicles to turn brown or black. Furthermore, these chemical burns create wounds on the grain surface, allowing weak opportunistic pathogens (like Curvularia, Alternaria, or Fusarium) to colonize the injured tissue, creating a severely "dirty panicle" or grain discoloration syndrome. 2. Grain Filling Stage: Leaf Burn (Phytotoxicity)During the grain filling stage, the plant relies entirely on the top leaves—specifically the flag leaf—to perform photosynthesis and pump starches into the filling grains. Leaf Burn (Necrosis): Spraying high concentrations of foliar fertilizers (especially nitrogen/urea mixtures), improper tank-mixes, or spraying during the hottest part of the day causes rapid moisture evaporation. This leaves behind a highly concentrated chemical residue that chemically scorches the leaf tissue, causing marginal leaf burn and drying. Yield Loss: When the flag leaf and upper leaves suffer from phytotoxic burns, their chlorophyll content is destroyed, and photosynthesis drastically drops. Because the leaves can no longer supply enough food to the developing grains, the grains become poorly filled, chalky, or shriveled, ultimately lowering the overall grain weight and slashing your yield. How to Prevent Phytotoxicity & Yield Loss Avoid applying any foliar spray during peak morning flowering hours (usually 9:00 AM to 3:00 PM). If an application is absolutely necessary, spray late in the afternoon (4:00 PM to 6:00 PM) when the flowers have closed and temperatures are cooler. Complete important preventative fungicide applications (such as for False Smut or Stem Borers) during the mid-to-late booting stage before the panicle breaks out of the leaf sheath. Avoid harsh chemicals, especially copper-based products, once the panicles have emerged. Always follow the recommended dosage on the product label. Avoid mixing too many chemicals together (pesticide + fungicide + foliar fertilizer) in a single tank unless they are explicitly stated to be compatible, as complex mixes heavily trigger chemical scorching. #sharingiscaring #agriculture #farming #farmlife #soilhealth