Journal Paper

Paper Information

video

sound

Persian Version

View:

21,495

Download:

12,278

Cites:

Information Journal Paper

Title

SUMMER FORAGE SORGHUM YIELD, PROTEIN AND PRUSSIC ACID CONTENTS AS AFFECTED BY PLANT DENSITY AND NITROGEN TOPDRESSING

Pages

 Start Page 73 | End Page 83

Abstract

 Two similar field experiments were carried out at Kushkak and Fars Agricultural Experimental Staties to determine the effects of plant densities and nitrogen topdressing (NT) rates on forage yield, some agronomic traits, protein and PRUSSIC ACID contents of forage sorghum (Sorghum bicolor L. Moench var. Sudenense). Both experiments were conducted as spilt plots arranged in randomized complete block design with four replications. PLANT DENSITY consisted of 25, 33 and 50 plants m-zin the main plots and nitrogen topdressing rates were 0, 100, 200 and 300 kg N ha-l as urea in the sub-plots. Increasing plant density increased main stem height (MSH), leaf area index (LAI), total tiller number m-z(TTN), total FRESH FORAGE (TFF), total dry matter (TDM), leaf dry matter (LDM), and stem dry matter (SDM) yields. However, it decreased CRUDE PROTEIN percentages (CPP) and had no effects on leaf-stem ratio at both locations. Increasing nitrogen rates increased MSH, LAI, TTN, TFF, TDM, CPP, forage PRUSSIC ACID percentage (FPAP) and decreased leaf-stem ratio. Optimum plant densities and NT rates for these experiments were 50 plants m-zand 200 kg N ha-J, respectively at both locations. Nitrogen applicationshad more effects on the second than the first out. The reaction of forage yields and most agronomic traits to the treatments were extremely similar at both locations.

Cites

  • No record.
  • References

  • No record.
  • Related Journal Papers

  • No record.
  • Related Seminar Papers

  • No record.
  • Related Plans

  • No record.
  • Recommended Workshops