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闽东地区预留晚稻秧田达晚稻总面积的5%左右。利用这部分田地的空隙时间养殖红萍,是开辟肥源,增积大量有机肥料和养猪青饲料的一条有效途径。我所今年预留晚稻秧田6.5亩,充分利用空隙时间养上了红萍,其中3亩供作猪饲料,1亩繁殖“溪萍绿”良种,1.5亩作“萍肥库”。萍肥库养殖田原系早春萍母基肥,4月18日每亩留下萍种700斤,加强水肥管理,注意治虫,及时分萍,提高红萍产量,至6月8日,51天时间,总产鲜萍16,130斤,扣除萍种净增殖15,430斤,平均亩产10,280斤,亩日产量达201.6斤,按含氮量0.3%计算,亩产纯氮30.8斤,折含硫酸铵154斤,此外还有磷、钾肥份和大量有机质。
The reserve of late rice in eastern Fujian reaches about 5% of the total area of late rice. The use of this part of the open space of red sand weed, is to open up fertilizer sources, increase the accumulation of large amounts of organic fertilizer and pig feed an effective way. This year I reserve the late rice seedling 6.5 acres, make full use of the gap time to raise the red duck, of which 3 acres for pig feed, 1 acres of breeding “Xi Ping green”, 1.5 acres for “Ping fertilizer library” . Pingtu library farming Tian original spring of the mother-in-law base, April 18 per acre leave Ping 700 kg, to strengthen the management of water and fertilizer, pay attention to pest control, timely Ping, improve Hongping yield to June 8, 51 days, Total production of fresh Ping 16,130 pounds net deduction Ping net proliferation of 15,430 pounds, the average yield of 10,280 pounds per mu, output of 201.6 kilograms per mu, calculated according to 0.3% nitrogen content per mu of pure nitrogen 30.8 kg, including ammonium sulfate 154 pounds, In addition there are phosphorus, potassium and a large number of organic matter.