Plant spacing in broccoli: —Affects yield, head size, earliness
Thomas M. Aldrich, University of California
Marvin J. Snyder, University of California
Thomas M. Little, University of California
California Agriculture 15(12):10-11. DOI: 10.3733/ca.v015n12p10.
Thomas M. Aldrich is Farm Advisor, San Luis Obispo County, University of California; Marvin J. Snyder is Farm Advisor, Santa Barbara County, University of California; Thomas M. Little is Extension Vegetable Crops Specialist, University of California, Riverside.
Spacing of plants affects both the total yield and the size of broccoli heads according to recent field tests. These results are important because the freezing industry generally prefers heads of smaller size than those shipped for fresh marketing. The tests indicate that the closer the spacing, the smaller the heads produced. Total yield increased to a maximum when spacing was reduced to 8 or 11 inches (depending on season and variety). Further decrease in the space between plants results in an abrupt reduction in yield.