บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Structural status and bulk density of the ordinary chernozem and their effect on wheat yield.

Lazarev, A. P.; Abrashin, Yu. I.;

Pochvovedenie Year: 2000 Issue: No. 5 Pages: 614-618 Ref: 15 ref.

2000

บทคัดย่อ

Structural status and bulk density of the ordinary chernozem and their effect on wheat yield.

The structural status of chernozem affects the productivity of summer wheat. The correlation between the wheat yield, the sum of microaggregates of 3-1 and 1.0-0.25 mm in size, and the aggregation coefficient was analysed. The bulk density of chernozem gains optimum values due to soil aggregation. The negative correlation is observed between the bulk density of soil and the following parameters: the humus content, the total amount of postharvest residues, and the aggregation coefficient.