When Richard Smith tells you that he is impressed with efficacy of an organic herbicide you better...
UC Davis Hydrology Team Visits NRI Study Field in Five Points and Four Cover Crop San Joaquin Valley Farms
The group visited cover crop evaluation sites at the Five Points farm of Scott Schmidt, the Firebaugh farm of Alan Sano and Jesse Sanchez, the Madera farm of Kirk Texeira and Lucero Farms, and the pistachio orchard of Jacob Sheely near Lemoore. Alyssa and Samuel are part of a team that also includes UCD Hydrologist, Daniele Zaccaria, UC Merced Climate Change scientist, Tapan Pathak, UCCE Advisors Dan Munk, Gene Miyao, and Roger Duncan, and Jeff Mitchell, of UCD's Department of Plant Sciences. This team is conducting work to evaluate tradeoffs of winter cover crops with respect to soil water depletions, costs, carbon capture and soil improvement in a range of orchard and tomato production systems. A variety of data collection efforts are now underway including the use of soil water content sensors and dataloggers, neutron probe soil water content determinations, and commercial field ET measurement instrumentation that is also being installed at the study sites. The project began in the fall of 2015 and hopes to expand to additional sites that will be intensively monitored during the coming two years. Additional information on the preliminary findings for the 2015 – 2016 winter period will be available soon.
From the UC ANR Report blog :: 2/1/2016 Fennimore honored by weed society Steve...
Plasticulture tunnels are the norm for several multimillion dollar crops such as raspberries and...
At a recent meeting in Modesto covering drought and how it is being dealt with around the world, there was an interesting presentation by some Israeli researchers. They looked at the use of recycled water from sewage treatment plants and the use of desalinated water from the Mediterranean. The recycled water had much of the original mineral nutrients, but had been treated for microorganisms. They wanted to know how much of the nutrients could be accounted in the fertilizer balance applied to apple, pear and nectarine orchards. Their conclusion that after one year, there was a significant contribution and that leaf analysis had not changed, not yields after applying the effluent. This was only for one year, but I could imagine that after many years there would be a significant impact.
They also looked at desal water, and found that the process removed most minerals except for boron. They actually found that plants irrigated with this water ended up with calcium and magnesium deficiencies and more boron toxicity. The reverse osmosis membranes used in this case were not very effective at removing boron. In the case of many waters north of Los Angeles there are often high levels of boron in the water, and using RO water might accentuate the problem.
RO water also is usually too pure and the lack of salt causes soil to deflocculate - lose structure. Yes, you need some salt to have a healthy soil.
Read more about this trial at:
Bitter Pit in Apple caused by low Calcium
bitter pit apple