关键词: 高效设施农业, 高效设施农业, SWOT分析, 对策, 姜堰市

Abstract:

Effects of PP333 or/and foliar nutrients on yield, root growth and nutrient content of rice were studied by field experiment. Results showed that PP333 combining with foliar nutrients have the best effects. This treatment could increase root biomass and root activity to improve the nutrients accumulation. The yield results demonstrated that rice sprayed with PP333 and nutrients had effective grains with 10.6 No./hill, seed setting rate with 94 grains/panicle, 1000-grain weight with 19.96 g, and yield by 11.89% compared with the control. Furthermore, the above treatment could enhance the lodging resistance and obviously increased root biomass and root activity to improve phosphorus, potassium accumulation in rice stem, leaves and grains. This research provides valuable references to technique of PP333 and nutrients applying on rice.