Vol. 68 No. 4 (2023) Optimization of Phosphorus levels in groundnut under different land configuration in Afghanistan

Abstract

Absstract

The present investigation entitled, “Optimization of Phosphorus levels in groundnut under different land configuration in Afghanistan” was carried out at Afghanistan National Agricultural Science and Technology University (ANASTU), Kandahar Province, Afghanistan during spring season 2020. The experiment was conducted in Split plot design with 15 treatment combinations each replicated thrice. The main plot consists of land configuration viz. Ridge &Furrow (RF), Broad bed & Furrow (BBF) and Flatbed (FB), while the subplot comprised of Phosphorus levels viz. absolute control (0kg P₂0₅ha^-1), 20, 40, 60 and 80 kg P₂0₅ha^-1. The plant growth in terms of leaf area (cm²), number of branches/plant and dry matter accumulation were maximum in BBF and followed by FB and minimum in RF. The yield contributing characters such as pods weight/plant, 100 kernel weight, kernels per pod, number of pods per plant were significantly better in BBF than Flatbed andRF. The pod yield and biological yield were significantly better in case of BBF in combination with 60 kg P₂0₅ha^-1 followed by RF with 60 kg P₂0₅ha^-1. Based on above findings it could be concluded that growing groundnut on BBF with 60 kg P₂O₅ha^-1 was found beneficial proposition for achieving higher production and productivity in Afganistan.