Effect of nitrogen, in the form of urea @ 0, 10, 20, 30, 40, and 50 kg ha',by broadcast application, on nodutation in Sesbania bispinosa (dhancha) was studied. Maximum increase in the number of nodule ... Read More
Few studies have been carried out on the process of decalcificatton of glacial till,vduring post-glacial soil development, and redistribution of calcium carbonate down intovthe soil profiles. Contempo ... Read More
Few attempts have been made to identify the effect of soil erosion on soil productivity. The objective of the study was to determine the effect of artificial desurfacing on the productivity of soil an ... Read More
A field experiment on rice crop at Bio-Saline Experimental Research Station, Sadhuke, Gujranwala. was conducted on saline-sodic soil. Soil was silty clay in texture. Four treatments vis., hydrochloric ... Read More
Efficiency is exceptionally low for nitrogen (N) fertilizers in flooded rice ecosystem. A greenhouse pot study was conducted to determine nitrogen availability in soils from rice based cropping syste ... Read More
Pot culture studies were conducted to find a suitable soil test for P nutrition of lowland rice on calcareous alkaline soils. Various sail P test procedures evaluated were: Olsen % AB-DTPA, NaHCOrEDTA ... Read More
The experiment was conducted by growing five wheat genotypes (Pato, LU-26S, Pb-85, Tchere and Pak-81) in round plastic tubs containing vermiculite-gravel (1:1 by volume). There were four treatments; c ... Read More
Heavy metals applied to agriculture soils as soluble salts are usually considered more plant available in short term than equivalent amounts of metals applied to soil in sewage sludge. Slow chemical p ... Read More
A soil pot culture study was carried out to investigate the susceplihility of 14 wheat varieties to low soil Cu, On the basis of grain yield response to CII application, varieties Chakwal-86, Faisalab ... Read More
Field Experiments on growth and water use by wheat were conducted during 1991-92 at Barani College and Mangial under different tillage and fertilizer treatments. Grain yield was significantly greater ... Read More
A field experiment was conducted at the Waimanalo Research Station of the University of Hawaii, Honolulu, to study the effect of Nitrogen and intercropping on growth behaviour and N contents of sweet ... Read More
Effect of Nitrogen and intercropping on agronomic traits and N uptake efficiency of sugarcane was compared in a one-year crop at the Waimanalo Research Station of the University of Hawaii during 1993- ... Read More
The land is an abode and a source of sustenance for the hitman as well as other living species. The soil is not an abstract entity but a resource throbbing with biotic and abiotic processes. The pheno ... Read More
Boron tolercnce in six rice varieties was studied in a pot culture experiment. The tolerance was related to varietal efficiency for B uptake and to their B requirement. Variety Basmati-3711 was most t ... Read More
Twenty four soil series, representing the parent materials: less and moderately weathered alluvium; limestone; shale and sandstone; diorile, granite, and granodorite; and less and moderately weathered ... Read More
Sand (2-0.05 mm) and silt (50-2i>.m) from 24 soils representing the parent materials: less, moderately and highly weathered alluvium; shale and limestone; sandstone; granite and granodiorite and less ... Read More
Pot culture study was conducted on Missa Soil series to investigate the effect of wheat straw incorporation on the availability of applied zinc in rice-wheat system. Zinc was applied @ 0, 2, 4, 8, 16 ... Read More
A total of 213 rice accessions were tested for salt tolerance. Nona Bokra (Tolerant) and IR203S (Susceptible) were used as control. Present studies were conducted in the growth chamber at 29/21 "C da ... Read More
Field experiments were conducted to determine N , P and K requirements of sunflower ( Helianthus annuns L.) grown in heavy textured soils of rice tract. Four levels each of JV ( 0,60,120 and ISO Kg ha ... Read More
Studies on the efficiency of nitrogen sources for rainfed wheat as affected by gypsum application were conducted on loam soil at the National Agricultural Research Centre, Islamabad. Different combina ... Read More
In a green house study, the effect of potassium sources, their rates of application and moisture regimes on sorghum yield and K and S uptake was investigated at the National Agricultural Research Cent ... Read More
Experiments were conducted under laboratory conditions for studying the effect of different concentrations of urea on pH changes in alkaline calcareous soils under different cropping systems. Five soi ... Read More
Ammoniacal loss of nitrogen from different commercial N-fertilizers in alluvial alkaline calcareous soil was assayed, using non-destructive direct estimation technique, under laboratory conditions. Th ... Read More
Soil erosion is a serious problem of rainfed areas which is not only causing loss of soil mass but also deteriorating soil fertility and productivity. Decreased soil fertility can be ameliorated by th ... Read More
A commercial winter wheat farm with complex, eroded hills near St. John, Washington, USA was intensively sampled along four 655 m long transects separated by 122 m. Samples were taken at intervals of ... Read More
A field experiment on cumin was carried out under irrigated conditions, at Agricultural Research Station, Quetta. The treatments consisted of 4 levels of N (0, 60, 90 and 120 kg N ha'1) and one level ... Read More
The effect of different phosphat'tc fertilizers (single superphosphate, SSP; triple superphosphate, TSP; diammonium phosphate, DAP and nitrophos, NP) on ammonia volatilization from urea applied to all ... Read More
Crop yield and allowable cropping intensity in rainfed areas depends upon quantity of rainfall and its distribution. Soil water dynamics, crop yields and water use efficiencies were compared for two c ... Read More
A pot experiment was conducted to evaluate five extractants (H20, NH4OAc, MgOAc, CaCl2 and UNO,) for K extraction from Kotli, Pindorian, Wazirabad, Shahdhra, Lyallpur and Suttanpur soil series for the ... Read More
Maize seeds inoculated with four isolates of rhizobacteria Azotobacter and Pseudomonas both in combination and separate treatments were sown in the field receiving NPK @ 150-100-100 kg ha', respective ... Read More
An extensive nutrient indexing survey was conducted during December, 1995 to investigate the foliar nutrient contents of different maneo varieties. More than eight hundredIsaf samples of eleven mango ... Read More
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