Collaborative Research Project was conducted for testing of PSAP - bio-efficacy on cane in two plantations & one ratoon crop. It is concluded that application of PSAP through foliar sprays (four sprays at 60, 75, 90 & 120 DAP) gave significantly better results than control w/o PSAP. With 100% RFD of NPK (180:80:80) + PSAP in sugarcane increased yield by 39% & 46% in plant & ratoon respectively; 1.85% to 2.03% improved recovery in CCS unit..
Test Report - 2020-2021Tested the impact of PSAP for two years at two locations in SRI - Central & GSSBRI - Seoria Eastern Uttar Pradesh, i.e., in a sub-tropical region. It revealed impressive impact of PSAP on yield and quality under different geo conditions. Cane yield increased by 21.4 to 24.4 tons /ha and recovery improved in CCS by 0.36% to 0.5% unit respectively in Central & Eastern Uttar Pradesh.
RecommendationTesting of PSAP – “Potassium salt of active phosphorus” a research molecule on sugarcane 2019 - 20 and 2020 – 2021 for two seasons. It was reported that application of PSAP@ 12.5 Kg/ha with RFD. Yield increased by 23.4 tons /ha and 36.3 tons / ha with 1.03 % to 0.45 % recovery improvement in CCS unit.
Test Report - 2019-20 & 2020- 21MPKV- Rahuri, Dist. Nagar, Maharashtra. Reported the impact of PSAP on yield & quality of cane in a tropical region. 20.8 tons/ha increased in cane yield and 0.26% improvement in CCS recovery. Studies also revealed that even after 50% reduction in RFD, split spray of PSAP/ha increased cane yield by 20.9 tons/ha and recovery improved by 0.26% in CCS Unit.
Test -Report - 2014-15"Bio-efficacy evaluation of potassium salt of active phosphorus (PSAP) on soybean"
Trial conducted at ten (10) location/centers of AICRP Soybean (Agronomy) during kharif 2020 and 2021.
Irrespective of agro climatic zones of India, significantly the highest increase 1036 kg /ha soybean yield was registered
Research trails for Evaluation of PSAP for Insect and Predator on standing crop and Bioefficacy on soybean during Kharif 2018 – 19 conducted. Higher yield recorded (26%) in soybean by use of PSAP, It also found superior for control of insects population. Effect of PSAP on the natural enemies population; Data pertaining to the effect of different treatments on population of natural enemies did not showed any effect on population of natural enemies i.e. Lady Bird beetle in soybean ecosystem. From it results showed statistically on par in all treatments. No phyto-toxicity effect of PSAP on soybean crop was observed in any treatment during the experiment.
Test Report - 2018-19The field trials were conducted to evaluate the PSAP against Downy mildew and Powdery mildew. PSAP tested at AICRP M & AP research field, Mandsaur for evaluation of bioefficacy of PSAP on Opium Poppy ( Papaver somniferum ). The Field trials have been conducted during 2018- 2019, 2019-2020 and 2020 – 2021 for three years. From above experiment it is evident that 50% reduction of recommended pesticide spray for the crop + with PSAP @ 6 gm / liter shows maximum reduction in disease incidences and maximum increase in seed yield, latex and husk yield without any symptom of phytotoxicity.
Test Report - 2021-22Tested PSAP - ProPhite in comparison with potassium phosphite for control of various diseases in grapes. PSAP - ProPhite proved far superior in controlling various diseases like downy mildew and anthracnose in grape. It was also observed that split sprays of PSAP - ProPhite can reduce fungicide sprays by 50 %. PSAP - ProPhite also improved the yield by 34.80% to 68.66% when applied singly or in combination with fungicides.
Test Report - 2019-2020PSAP (ProPhite) tested by ICAR- NRCG based on the request and samples submitted by MRDBS, Maharashtra Rajya Draksha Bagayatdar Sangh, grape growers Association, for the contents of pesticides and P and K percentage in PSAP - ProPhite. Reports revealed no content of pesticides when tested for 996 chemicals. The content of P and K in PSAP was found to be 16.27% and 30.23% respectively, which was different than the contents of P and K in mono and/or di potassium phosphite P: 25.8% and K : 32% and P : 19.6% and K : 49%. Based on the content of P and K in PSAP, it was certified that PSAP is not analogous to potassium phosphate or mono and / or di potassium salt of phosphorous acid.
Test Report - 2017-2018The experiment was conducted to decrease fungicide applications for the management of downy mildew of cucumber. Different combinations like growth promoter, PSAP fungicides and micronutrients were tested. The combination containing a fungicide and PSAP were more effective than fungicides,growth promoter, micronutrients applied singly or in combinations. PSAP and fungicide controled the downy mildew disease most effectively and increase the yield by 40 %. PSAP applied singly also effectively controlled the downy mildew of cucumber and increased the yield of cucumber by 25%, the results clearly showed that, yield can be increased by 40% with 50% reduction in fungicide applications or fungicides can be replaced with PSAP. None of the attempted treatments showed any kind of phytotoxicity on cucumber crop.
Management of downy mildew of cucumber by lowering toxic fungicide applicationsReported in ACS OMEGA Journal published by American Chemical Society, role of PSAP in mitigating water stress; improvement of photosynthetic activities, growth and vigor.
Predication of Photosynthetic Leaf Gas Exchange of Sugarcane (Saccharum spp) Leaves in Response to Leaf Positions to Foliar Spray of Potassium Salt of Active Phosphorus under Limited Water Irrigation. PSAP role in limited water condition is accessed. In conclusion, overall and the present results revealed that the PSAP application might be an efficient technique for improving the tolerance of sugarcane plants subjected to limited water irrigation. It also up regulated the photosynthetic capacity by protecting the negative impacts of sugarcane plants during limited irrigation. PSAP has a significant role in sugarcane cultivation under insufficient water availability for irrigation and its optimum dose will be supportive in mitigation of limited irrigation in a variety of crops for sugar & bio-energy sectors. This combination also greatly improved photo-synthetic activities & plant growth. However, to suggest an optimum dose of PSAP concentration, a large-scale demonstration under field conditions should be assessed in later studies.