番茄有机基质理化特性和栽培效益分析

从容重、空隙度、栽培过程中EC值和pH值的变化、基质养分释放量、番茄养分吸收量、产量、成本等方面对5种有机基质的理化性质及栽培效益进行了分析。结果表明,5种有机基质的理化性状基本都在适应范围,基质C中氮、磷、钾养分含量高,pH和EC值较稳定,番茄产量和效益最高,分别比CK1增加11.64%和26.12%,比CK2增加18.34%和9.55%;基质A其次,产量和效益分别比CK1增加1.38%和14.87%,比CK2增加7.47%和4.86%。

Evaluation of Physical-chemical Properties of Different Organic Substrates for Tomato Growing and Their Profits

The physical-chemical properties of five organic substrates and tomato growing profits are evaluated with their density, porosity, changes of pH value, EC value, N, P, K contents at the beginning and end of tomato growing, nutrient absorption, cost and tomato yield. The results show that the physical-chemical properties of the five substrates are generally among the suitable range. Substrate C appears the best in all treatments, with higher amount of N, P, K content, more stable pH value and EC value, and the highest yield and profit. Its yield and profit are increased by 11.64% and 26.12% compared to CK1, and increased by 18.34% and 9.55% compared to CK2, respectively. Substrate A is just next to Substrate C, with the yield and profit increased by 1.38% and 14.87% compared to CK1, and increased by 7.47% and 4.86% compared to CK2, respectively.