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U. P.) to evaluate the effect of different solid and liquid forms of organic manure on growth and yield of soybean. The experiment was laid out in Randomized Block Design with three replications. The treatment consisted of three sources of solid (Vermicompost 2.6 t ha-1 , Farm yard manure 16 t ha-1 and Poultry manure 2.2 t ha-1) and liquid (Panchgavya and fish amino acid) forms of organic manures and two cultivars (JS 335 and JS 95-60). The experimental results revealed that FYM + Panchgavya + variety JS 335 recorded at all stages (growth stages) maximum plant height (47.26), number of branches plant-1 (10.46), dry weight (21.33), crop growth rate (44.43) and stover yield (3876.66 kg ha-1). There were significant difference between treatments, except relative growth rate (0.03) at 60-75 days interval and seed yield (2198.33 kg ha-1).

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The experiment was carried out during Kharif season 2019-20 at Crop Research Farm, SHIATS Model of Organic Farm (SMOF), Department of Agronomy, NAI, SHUATS, Prayagraj (U.P.) to study the "Response of Black rice (Oryza sativa L.) varieties to organic production technology". Considering T10Kalabhat, Vermicompost (2.25 t/ha) and Jeevamrutha (500 l/ha), performed significantly higher in No. of tillers/hill (21.93), straw yield (26.57t/ha) and Fertility ratio (91.98%). Considering T15 Manipuri black, Vermicompost (2.25 t/ha) and Jeevamrutha (500 l/ha) performed significantly higher in days taken to panicle emergence [50%] (74.66 days), physiological maturity (117.33 days), grain yield (5.61 t/ha), grain protein (15.60%), also maximum Gross return (7,22,633.3₹/ha), Net return (6,29,013.3₹/ha) and B:C ratio (1:6.7). It can be concluded from the below research that application of Vermicompost (2.25 t/ha) and Jeevamrutha (500 l/ha) found to be enhancing productivity and economy of organic Manipuri black rice. Also it is a very good and sustainable cultivation practice.

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Data of uniformity trials on apple in farmers' gardens showed large localized and genetic variation, indicating that larger plots could be used with advantage. Formation of blocks on the basis of uniformity trials can be expected to increase block efficiency considerably. With only four to six years for experiments it was found better to use trunk girth as a calibrating variate for forming plots and blocks instead of losing two years for a uniformity trial. The minimum number of replications needed to obtain estimates of treatment effects with a given standard error has been calculated. There was a pronounced biennial swing in the yields as reflected by the intra-tree correlation.Recently a number of uniformity trials were conducted for two years on apple crops in farmers' gardens in Neyshaboor in North East Iran, one of the important apple growing areas of the country, as a preliminary to the conduct of fertilizer tests in subsequent years. In addition to yields, trunk girths were also measured. The object of the present investigation was to utilize these data for the efficient planning of experiments on apple crops.Work on the study of sources of variation in apple tree experiments have been reported by Pearce and Moore (1962) and Pearce and Brown (i960). Freeman (1963) has studied environmental and plant variation, using serial correlations between yields of trees in a row, but all these studies relate to experiments at research stations.