Central Valley Cooperative

The week started out on the wet side with a sustained rain event moving through the area Monday with rain amounts varying in the 1”-5” range with 2”-4” totals being quite common. Corn plant development ranges from V13 (collar on Thirteenth leaf) to V16 with some plants in protected areas starting to poke tassels out later in the week. Read more …

Much has transpired since the last Agronomy Notes, Corn has put on 4-5 collars and is approaching V8 for a mid-April planting date and is 19” tall at that collar with total plant height knee high or 24-25” tall. Some of the early planted soybeans have put on 3-4 growth stages and are almost 8” tall with some of the replanted soybeans still poking through.

Corn plant development is from V4 on corn planted in early May to almost V8 for corn planted in mid-April. We are still seeing signs of slow emergence from the spring, either from slightly less than ideal planting conditions in certain areas of the field, poor seed to soil contact as well as germination differences within hybrids.

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We started the week with temperatures in the mid to upper 60’s°F and some scattered rainfall and gusty winds on Sunday followed by dropping temperatures and cloudy weather into Tuesday morning. Temperatures dropped enough that on Tuesday morning we may have experienced some very light scattered frost. (I have not seen any frost damage yet, but have seen some wind and/or sandblasting damage as well as some Silver Leaf Corn Syndrome.)

Soil Temperatures fluctuated from 42°F-84°F at the 2” depth and 45°F-75°F at the 4” depth with soil temperatures at the 8” depth ranging 49°F-65°F

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