ÖzLeonardit, toprak özelliklerini iyileştirmede ve dolayısıyla ürün verimini arttırmada kullanılan organik gübrelerden biridir. Bu çalışmada, sulanabilir koşularda buğday bitkisine farklı miktarlarda leonardit uygulanarak, uygulanan bu leonarditin bazı toprak özellikleri üzerine olan etkisi belirlenmiştir. Çalışma 2009-2012 yıllarında GAP Uluslararası Tarımsal Araştırma ve Eğitim Merkezi Müdürlüğü deneme alanında, tesadüf blokları deneme desenine göre dört tekerrürlü olarak yürütülmüştür. Denemede leonarditin 6 farklı dozu (0, 50, 100, 150, 200 ve 250 kg da -1 ) uygulanmıştır. Hasat sonrası tüm parsellerde, toprakta organik madde, toprak nemi, hacim ağırlığı ve penetrasyon direnci belirlenmiştir. Çalışma sonucunda, farklı miktarlarda uygulanan leonarditin toprakta organik madde, toprak nemi ve hacim ağırlığı üzerine etkisinin olmadığı, penetrasyon direnci üzerine etkili olduğu görülmüştür. Toprak penetrasyon direnci leonardit uygulaması ile azalmıştır. Effect of Some Soil Properties of Different Doses Leonardite to Wheat AbstractLeonardite is one of the organic fertilizer that used in development of soil characteristics and hence increase of yield. In this study the effects of different levels of leonardite were determined on some soil properties in irrigable conditions to wheat plant. The study was carried out between the years of 2009-2012 in the research area of GAP International Agricultural Research and Training Center as randomized complete blocks design with four replications. In this study six different levels at leonardite (0, 50, 100, 150, 200, 250 kg da -1 ) were applied. Organic matter, soil moisture, bulk density and penetration resistance were determined in all plots after harvest. At the end of the study different levels of leonardite has no effect on organic matter, soil moisture, bulk density in soil and has effect on penetration resistance. Soil penetration resistance was decreased with leonardite application.

Gürsoy S., Kolay B., Avşar Ö., Sessiz A. (2015): Evaluation of wheat stubble management practices in terms of the fuel consumption and field capacity. Res. Agr. Eng., 61: 116-121.Five wheat stubble management practices i.e. chopping the stubble by the chopper mounted on combine during harvest and transmitting the straw to trailer (SCDF), chopping the stubble by the chopper mounted on combine during harvest and spreading the straw to field surface (SCDS), chopping the stubble on field surface after harvest by chopper mounted on combine and transmitting the straw to trailer (SCAF), leaving the stubble on field surface (SLS) and removing the stubble left on field surface by baling (SSB) and the cutting height of combine header (10 and 20 cm) were evaluated in terms of fuel consumption and field capacity. The result of the studies showed that the cutting height of header was increased from 10 to 20 cm, the field capacity increased from 1.195 to 1.365 ha/h and the fuel consumption decreased from 54.472 to 38.859 l/ha. While the highest field capacity was determined in SLS (1.846 ha/h), SCAF and SSB treatments had the lowest field capacity (0.954 and 0.891 ha/h, respectively). Chopping the stubble by chopper mounted on combine and transmitting straw to trailer during harvest increased the fuel consumption of combine by 3.6 times.

Decreasing water availability for cotton production has compelled researchers to engage in studies about rising water use efficiency by improving water management. The impacts of different irrigation levels on the fibre qualities of drip-irrigated cotton were evaluated in Diyarbakir, Southeast Anatolia Region of Turkiye. Three cotton varieties, ‘Stoneville 468’ (ST 468), ‘FiberMax 832’ (FM 832), and ‘Kartanesi’, and three levels of irrigation were tested in 2017 and 2018. Treatments were I 50 (50% water stress), I 75 (25% water stress), and the fully irrigated treatment I 100, which was obtained from Class-A pan evaporation. According to the two-year results of the study, water stress caused a decline in fineness, length, strength, elongation, uniformity ratio, and spinning consistency index (SCI) values of fibre, while fibre yellowness and short fibre ratio values increased. Fibre brightness was not affected by water stress. There were significant differences among varieties concerning quality parameters. FM 832 has come to the fore with regard to fibre fineness, length, strength, uniformity, yellowness, reflectance, and spinning consistency index.

Güneydoğu Anadolu Bölgesinde buğday hasadından sonra tarlada kalan anız çiftçiler tarafından genellikle yakılmaktadır. Bu çalışmada ülkemizde ve bölgemizde anız yakmanın neden olduğu problemlerin azaltılması ve üreticilere uygun bir buğday hasat yönteminin tavsiye edilebilmesi amaçlanmıştır. 2012 yılında yürütülen bu çalışma iki farklı anız biçme yüksekliği ve beş farklı anız yönetim sisteminde gerçekleştirilmiştir. Çalışmada yöntemlerin yakıt tüketimi, iş başarısı, tarla yüzeyinde kalan anız miktarı incelenmiştir. Ayrıca uygulanan bu yöntemlerden sonra hasat edilen alanlara mibzerle doğrudan anıza mercimek ekimi yapılmıştır. Yöntemlerin mercimek bitkisinin tarla filiz çıkışına (TFÇ) olan etkisi incelenmiştir. Sonuç olarak biçerdövere monte edilmiş sap parçalayıcı ile saman yapılarak samanın biçerdöver tarafından çekilen tarım arabası ile tarladan uzaklaştırıldığı uygulamada yakıt tüketimi en yüksek (29.41 L ha-1), buğdayın biçerdöverle hasat edilip anızın tarlada bırakıldığı uygulamada iş başarısı (1.85 ha h-1) ve tarladaki anız miktarı (3716.43 kg ha-1) en yüksek bulunmuştur. En yüksek tarla filiz çıkışı oranı da biçerdövere monte edilmiş sap parçalayıcı ile saman yapılarak samanın biçerdöver tarafından çekilen tarım arabası ile tarladan uzaklaştırıldığı uygulama (213.77 adet m-2) ile biçerdövere monte edilmiş sap parçalayıcı ile saman yapılarak samanın tarla yüzeyine dağıtıldığı (203.99 adet m-2) uygulamalarda elde edilmiştir.

This study was carried out to investigate the effects of different sowing times on duration of tasselling, plant height, first ear height, ear length, ear diameter, number of ears per plant, fresh ear yield with husk, fresh ear yield unhusked, and marketable number of ears of different sweet corn (Zea mays L. saccharata Sturt.) varieties in Diyarbakır between the years of 2010-2012. The trial was conducted as split plots in randomised complete blocks with three replications. The main plots were sowing times, and the sub-plots were varieties. The trials were carried out at eight different sowing times (1 April, 15 April, 1 May, 15 May, 1 June, 15 June, 1 July and 15 July) with ‘Merit’, ‘Jubilee’, ‘Lumina’, ‘Vega’ and ‘Sakarya’ composite sweet corn varieties. From the variance analysis of the three-year combined average, the duration of tasselling, plant height, first ear height, ear length, ear diameter, number of ears per plant, fresh husked ear yield, fresh unhusked ear yield and marketable ear number were statistically significant for sowing times and varieties. According to the sowing time × variety interaction, except ears per plant and first ear height values, all other traits were significant. The fresh husked and unhusked ear yields varied between 8541.7-19396.8 kg ha-1 and 5065.0-13485.7 kg ha-1, respectively. The highest fresh husked and fresh unhusked ear yields were obtained from the 15 April sowing time of ‘Vega’ variety. The results state that optimal sowing dates for different varieties of sweet corn could be from 1 April to 1 May, and the most suitable variety to be planted is ‘Vega’ in Diyarbakır conditions.