Potash fertilizer on potatoes: Yields of field-run White Rose potatoes increased materially by potash treatments in fertilizer trials in Madera County
AuthorClarence E. Johnson
Author AffiliationsClarence E. Johnson is Farm Advisor, Madera County, University of California.
Hilgardia 12(7):10-11. DOI:10.3733/ca.v012n07p10. July 1958.
Out of 11 trials completed over a nine-year period, significant responses—increases as high as 31%—have been obtained from five out of six trials on Ripperdan soils. In the sixth trial on Ripperdan soil and in one trial out of three on Hanford soils, the response was only slightly below the degree of significance. No response was obtained in one trial each on a Ripperdan-Dinuba soil and on a Grangeville soil.
Also in this issue:Prune harvesting cost studies: Comparative studies of harvesting with catching frames and with picking machines conducted in Napa and Sonoma counties
Brucellosis in dairy cattle: Whey test accurately detects infected cows and distinguishes between reactions to late vaccination and virulent infection
Variation in milk constituents: Small variations in milk composition may require processing modifications or result in products of inferior market quality
Rhizopus rot on peaches: Ammonia gas fumigation immediately following harvest may provide effective control of disease causing serious losses
Machine to disbud rootstocks: Adapted electric bench grinder facilitates disbudding grape cuttings before planting and avoids later growth of suckers
Control of solar radiation: Housing comfort in both summer and winter can be improved by construction designed to take advantage of solar angles
Hooded atlas barley: Studies indicate development of hooded barley competitive with awned doubtful
Strawberry leaf miner damage: Effectiveness of natural enemies usually holds pest damage below levels of economic importance in commercial plantings
Citrus mite control: Effective new acaricide of low toxicity to insects registered for use on citrus
Gibberellin on zoysia grasses: Plant growth regulator did not improve establishment of slow growing turf grass in either greenhouse or field experiments
Factors affecting the recovery of hydrocyanic acid from fumigated citrus tissues