Effect of polyaspartic acid and different dosages of controlled-release fertilizers on nitrogen uptake, utilization, and yield of maize cultivars
Pengtao Ji, Xiangling Li, Yujuan Peng, Yuechen Zhang, Peijun Tao
Abstract
, which increased 37.4% compared with N0. Compared with JF2, XY688 showed higher nitrogen uptake efficiency, nitrogen utilization efficiency, and partial nitrogen productivity. For XY688, the highest nitrogen absorption efficiency was SU3 (slow-release urea and ordinary urea) treatment (0.36 kg/kg). The partial nitrogen productivity and harvest index of PASPN treatment were the highest and significantly different from other treatments. The partial nitrogen productivity of PASPN treatment was 57.02 kg/kg. These results can provide help for the further researches of the rational utilization and absorption of nitrogen fertilizer.
Topics & Concepts
Polyaspartic acidNitrogenChemistryUreaAgronomyCultivarYield (engineering)Dry matterAnimal scienceFertilizerHorticultureBiochemistryBiologyMaterials scienceMetallurgyRaw materialOrganic chemistryPolymer-Based Agricultural EnhancementsCrop Yield and Soil FertilityPlant nutrient uptake and metabolism