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“秀水04”是一种耐肥高产型水稻品种,郊区已大面积推广应用。我局所属农场的种植面积已达5.5万亩,约占34％,平均单产400公斤左右,比原有当家品种增产1成左右。但还有增产潜力可挖,其中之一就是肥料的运等问题。一、穗肥的增产作用在探讨基穗肥适宜比例前,首先要研究基、穗肥各自的增产效应,我们在农场作了基、穗肥相同化肥用量效应比较试验,试验分两种:1.单施基肥(22.5公斤硫铵),不施穗肥:2.单施穗肥(22.5公斤硫铵),不施基肥(试验田肥力中等,有机质含量1.5～2％),结果如表1。
“Silk 04” is a high yield of resistant varieties of rice, the suburbs have been large-scale promotion and application. The planting area of our own farm has reached 55,000 mu, accounting for 34% of the total. The average yield is about 400 kg, about 10% more than that of the original species. However, there is potential to increase production potential, one of which is the transport of fertilizers and other issues. First, the role of the spike fat production increase In exploring the appropriate proportion of the basal panicle before, we must first study the basal and panicle yield their effects, we made the base on the farm, spike fertilizer the same amount of fertilizer effect comparison test, the test is divided into two types: 1 Single basal fertilizer (22.5 kg of ammonium sulfate), no panicle fertilizer: 2. Single panicle fertilizer (22.5 kg of ammonium sulfate), no base fertilizer (medium fertility in the experimental field, organic matter content of 1.5 to 2%).