Abstract Taking pepper variety‘ Haonong No.11’ F1hybrid as experimental material,this paper carried out field trial in He county of Anhui Province,and studied on the nutrients absorption and distribution rule of autumn-winter pepper in greenhouse under mulched drop-irrigation system.The results indicated that the pepper yield reached 47 100 kg·hm-2,the total accumulation of dry matter was 8 163 kg·hm-2,and the harvest index was 0.70.The most rapid dry matter increasing period for plant was at the stage of fruit formation.Its accumulation quantity accounted for 33.3% of the whole growth period.Pepper nutrient absorption during the entire growth period is potash( K)> nitrogen( N)> phosphorus( P),and the absorption of N,P2O5 and K2O were 186、61.0、313 kg·hm-2,respectively.The absorbent N,P,and K were mainly distributed to fruits,and their harvest indexes were 0.59,0.78,0.58,respectively.The N,P,and K absorptive amount were the highest in the stage of fruit formation,accounting for 37.6%,28.5%,38.4%,respectively.As for the Ca,Mg,B,their absorptive amount was Ca > Mg > B.The plant absorbed CaO,MgO and B were 135、74.9、0.13kg·hm-2,respectively,and the harvest indexes were 0.08,0.32,0.46,respectively.The highest Ca and Mg accumulation were in leaves,accounting for 79.8% and 54.1%,respectively.B was mainly distributed in fruits and leaves accounting for 46.2%,39.2%,respectively.The Ca,Mg and B absorptive amounts were the highest during the stage of fruit formation accounting for 34.6%,33.3%,38.2% of the whole growth period.
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