Rice cultivation (English) - 2
v Manures and Fertilizers: - F Nitrogen 100 kg Phosphorus 60 kg Potash 60 kg per hectare. F ZnSo4 @25 kg /hac for Khera disease control. F The most suitable nitrogen fertilizer ammonium sulfate. F Leaf color chart (LCC) is used to determine the amount of nitrogen. F Bacterial fertilizers such as Azolla, blue green algae and azotobacter are important in paddy crop. F Blue green algae -20 -30 kg /hac/yr do nitrogen fixation. v Irrigation: - F Water Demand -900-2500 MM F There should always be 5 cm of water in the fields. F Puddling: - Plowing the soil with the help of a puddler in the state of standing water before sowing of paddy is called paddling. Its main objective is to control weeds in the crop and increase the availability of nutrients. F In puddling, two zones develop - the upper zone of the field which is 1 to 10 mm or 1 centimeter in which the amount of oxygen is called the oxidized zone, while the lower zone where oxygen is absent ...